Peter’s (Race) Pacer 202

Review Video


Peter’s (Race) Pacer is a Garmin Connect IQ Data Field which resolves 2 issues for me when I’m running a race:
  • Before the race starts I want to see the current time of the day (well actually I want to see, how long till the race starts?)
  • When I pace races it used to be doing mental math all the way, now this is no longer necessary as you can fully depend on the average pace/speed, because this data field allows to correct the distance at the kilometer / mile marker by simply pressing the LAP button
While the data field’s primary intent is to race races, you can also use it to run laps around the track, just set the lap distance to 400 meters and press the lap button as you cross the line!…


Q1 How do I customize the settings?
You can use Garmin Express or Garmin Connect Mobile to adjust the application settings, a help topic which describes this in more detail can be found here

Q2 I get the message “Only letters and numbers are allowed” when editing the pace target
This is a Garmin bug in the new “Connect IQ app” on iOS.
You can use this workaround to resolve:
  • uninstall the new “Garmin Connect IQ” app
  • Use “Garmin Connect Mobile” instead to edit the application settings

Installation / Configuration

  • Install the Data Field on your watch by clicking download in the Connect IQ store
  • Customize the data field in the Android App or Garmin Express 
    • Manage Apps
    • Select Peter’s (Race) Pacer
    • Click on the button “…”
    • Configure the settings and hit ok.
  • Configure your watch to use the data field:
    • On the clock face click “Start button”
    • Choose the Activity Profile for which you wish to install this data field for (eg Running)
    • Press the down button
    • Choose Activity Settings
    • Choose Data Screens
    • Choose “Screen 1” (or another screen)
    • Layout: click Start button and click the down button until the layout shows only 1 field 
    • When 1 field is selected press the back button
    • Choose field 1 (and click start button)
    • Choose “Connect IQ”
    • Select “Peter’s (Race) Pacer” from the list (hit start button)
    • All done, hit back, back, back, back…


(All functionality of this datafield uses about 22k, which is way too much for the older Connect IQ devices (only have 16k memory there). To be able to run the field on older devices I’ve stripped items marked with (*cIQ2) from those devices to be able to run it within the 16k memory limit.)

Before starting the race an initial data screen is shown (*cIQ2), this screen shows you the following data:
  • Time of the day
  • Current heart rate (+ zone indication)
  • Configured Settings Summary (Change these settings in Garmin Express or in the Garmin Connect Android App)
    • Target Pace / Target Speed / Target Finish Time 
    • Target Distance: 5k, 10k, 10 miles, half marathon, marathon or custom distance
    • Lap Size in meter
      • 1 k = 1000 meter
      • 1 mile = 1609.304 meter
      • typical length of track = 400 meter
  • Battery Percentage Remaining
  • Gps Signal Strength Indication

When pressing the START button the race timer will start and a new data screen will be shown, this data screen will show you the following information: 
  • top middle configurable field: current heart rate / average pace / average speed / perfect pace / perfect speed
  • left configurable field: average pace / average speed / current heart rate / perfect speed / perfect pace
  • middle configurable field: speed, smooth speed (5s average), smooth speed (10s average), pace, smooth pace (5s average), smooth pace (10s average)
  • time ahead / behind
  • race timer
  • (adjusted) distance covered (see adjusting distance explanation below)
  • estimated time of arrival
Perfect Pace / Perfect Speed
This field recalculates as you run and gives you the pace you need to run to arrive at the finish with 0 seconds behind / ahead (eg if you run a 10k race and want to arrive in 1 hour (avg pace=6:00min/km) and currently you’re at the 7k point in 41:30, which means you’re 30 seconds ahead, then the perfect pace will show the value 6:10 (min/km) as you can run the next 3k 10 seconds slower to still get in time at the finish line

Adjusting the race distance

In a race when you’re next to the race marker press the LAP button, the distance will now be corrected to the nearest lap position (eg 5.08 will correct to 5, 8.8 will correct to 9, …). After pressing the lap button the distance will be adjusted and all averages will be recalculated against this new distance figure.

When you miss a lap marker don’t worry: do not press LAP and go for the next lap marker. 

When you press the LAP marker by mistake you can undo the (last) correction by pressing the LAP button again (within a 30 second window)

Note: Adjusting the distance by pressing the LAP button has no influence on the recorded distance. (When you come home and look on Garmin Connect the distance will be the recorded GPS distance). If you turned off auto-lap you will see where you pressed the lap button and which mile/kilometer marker corresponded with which GPS distance.


  • Test the data field on a training session so you’re used to the layout.
  • Have a second screen with a native data field configuration as a precaution.


The data field is fully functional without donating. Donations are optional but encouraged from from within the data field with a small encouragement text. If you find Peter’s (Race) Pacer useful and/or Peter’s (Race) Pacer helps you to achieve your goal you can show your appreciation by donating an amount (suggested donation: 5 euro) on my PayPal account
(mention the name of the app “Peter’s (Race) Pacer” + your email address)

After donation you will receive a donation key on your paypal email address which which will remove the “Like it? Donate!” message from the data field. (this is a manual process, but normally you should receive a key within 24 hours).

(SPECIAL PROMO – donate 19 euro or more and get a key that’s valid for all my current and future apps )

Support / Questions / Feature Requests

When you have questions preferably post this question in the forum support topic (you have to log in first with your garmin user name in the top right corner before you can make a reply to this post)


Did you like this article?Questions?
  • Post in the comments section below!

202 thoughts on “Peter’s (Race) Pacer

  1. Reply Frank Vieren Mar 8,2017 12:34

    Great feature, but nevertheless due to GPS error I was mislead and almost missed my new PB on my latest marathon race.

  2. Reply Frank Vieren Mar 8,2017 12:36

    PS, it was not your implementation I used 🙁

  3. Reply Peter Mar 8,2017 12:53

    That’s why Peter’s (Race) Pacer is so great, it takes GPS errors completely out of the equation as you can sync your watch with the race distance at each mile/kilometer marker 🙂

  4. Reply John Maton May 30,2017 06:14

    Excellent. The synchronisation with KM markers is just what I had been looking for. Would love to donate, but PayPal requires that I set up an account with them – something that I will not do. Any other way to donate?

  5. Reply Peter May 30,2017 07:16

    hi John, glad you like my app!
    Alan had a while ago a similar question, I made this page for him If you use this donation button you don’t need to create an account and you can directly use your credit card or visa.

  6. Reply Espen Jun 14,2017 10:40

    Thank you! This is what ive been looking for! I will test it today and during 10K race this weekend and donate.
    I usually do it the “manual” way, Put datafield with LAPS, AVERAGE LAP and manual lap every KM. Then AVERAGE LAP will give me correct pace but I still need to calculate how far im behind etc.

    I have a idea for a NEW app, and it should be pretty easy to build based on Peters Race Pacer.

    Its a app for indoor track running (or running some other place you cant use GPS)

    Example: In Oslo, Norway, we have a indoor track which is 546meters one lap.

    Settings for the app should be like “How long is the track?”

    Every time you run a track and press LAP it should calculate distance. DISNTACE = DISTANCE + 546m, or just like 546m * LAPS.

    And one field for last pace. If you run a round in 2:11 it will be 4:00 pace (2:11 for 546meters = 4:00 pace). This is harder for people to calculate on the fly.

    This app would also be pretty usefull for outdoor track running, Since the watch always know that a LAP press = 400m.

    So the app is just like Petes Pacer WITHOUT GPS =)

    Just an idea for a new app! =)

    • Reply Peter Jun 14,2017 13:54

      added it to my todo list, no promises though as I can’t keep up: there’s more inflow than outflow 🙂

      good luck with your upcoming race. 😉

  7. Reply Tomas Jun 19,2017 10:04

    Peter’s (Race) Pacer totally saved me on the Copenhagen Marathon.

    During the last couple of training runs prior to the race, my Fenix 5x had an issue with the GPS and repeatedly got both pace and distance (and GPS trace) wrong. So on race day I didn’t trust the expensive watch. But with Peter’s (race) Pacer I knew that I could get a reliable lap time every official 1km, and that allowed me to pace myself successfully and beat my PR by over 10 minutes.

    Brilliant tool!

  8. Reply Harald Jul 25,2017 06:37

    Hi Peter, thanks for implementing the idea of readjusting the distance run by pressing a button at the distance markers. I suggested this idea to Garmin about 2 years ago, with no reaction whatsoever. I have no ConnectIQ capable watch yet (“only” a FR620) but if I ever will, this app will be mine!

    I also own a FR610 with a footpod, and followed fellrnr’s recommendation to calibrate the footpod, but still found it less accurate than the GPS distance measurement (pace round value).

    Honestly, I sometimes do not believe the accuracy of the mile markers… I’ve seen GPS vs. mile markers off by more than 300 meters during a marathon, and yet the overall distance was accurate by less than than in the finish. Hmmm…

    • Reply Peter Jul 25,2017 07:09

      hi Harald,
      I couldn’t miss the app anymore. 🙂
      I don’t know how I raced all those years before I wrote the app, well I do, it was doing a lot of math along the way… all way long. 🙂

      • Reply Harald Jul 26,2017 06:37

        By the way do you also adjust the pace reading according to the adjusted distance measurement? Say, if you hit the lap button after 950 meters (for a km), is the pace (average) corrected by -5%? If you do this again and again during a long run, the readjusted pace average should be quite precise, without having to calibrate a footpod or buying an expensive Stryd. Alternatively, since the app calculates the corrected distance anyway, the correction factor is a simple division. Both makes sense – for example if you run the NYCM, you change from Brooklyn which is quite open and GPS friendly, to downtown Manhattan, where GPS coverage isn’t so good and you tend to cut buildings 😉

        The screen could still display the GPS pace in one of the data fields if one so wishes.

        • Reply Peter Jul 26,2017 06:50

          all data (including pace, avg pace, eta, etc…) is recalculated on the fly based on the adjusted distance.

          • Reply Harald Jul 31,2017 09:57

            BTW any plans to integrate / display pace from footpod, like the “Foot Pod Pace” data field? Momentary pace from footpod plus distance correction by mile marker, that would be killer!

  9. Reply Peter Jul 31,2017 10:58

    For direct ant connections i don’t have enough memory left but if you pair the footpod with your watch it should already use that as the source for speed.

  10. Reply raz Aug 4,2017 14:05

    great app i just donated !!


  11. Reply Harald Aug 12,2017 16:22

    Hi Peter, it’s me again. I just ran a 10k race (Straßenlauf Dachau, and the data field helped me control my pace just fine – but.

    I had set auto lap to on, which may have confused the data field. I’ll switch it off next time. I must have missed this somewhere in the description. I used the Garmin footpod for instant pace, and the pace field was off by circa +10 sec all the time (between 3:55 and 4:10 min/km, where my overall average was 4:15). Instant pace was useless, but the “behind/ahead” field saved the race. Question: was the pace recalculation confused by auto lap? In some cases, auto lap counted a lap about 2 seconds before a km mark…

    Anyway: Great work, Peter, and I’ll donate in a minute. (y)

    • Reply Peter Aug 12,2017 18:34

      Hi harald,

      As long as the auto lapsize is equal to the lapsize set in the settings this should give no problem (on my own races I also set autolap on).
      I don’t influence the current pace, I just take over whatever value the connect iq framework passes on to me. But I’m sure you noticed that I offer other options for pace: avg pace, lap pace, smoothened pace, perhaps one of those will suit you better, the first two take the adjusted distance into account.
      Behind/Ahead field is also based on the adjusted distance, the behind/ahead field is the field I look at the most when I race and is one of the reasons I created the race pacer spinoff which I’ve named Peter’s Ahead Timer ( ).
      … I know it’s a poorly chosen name (I couldn’t think of something better 🙂 )

  12. Reply John Evers Aug 30,2017 21:39

    Question: my aim is to run 150 km during a 24 hour run. Will this help me? Also my laps will be 934.8 meters. I guess that is not going to help?

    • Reply Peter Aug 31,2017 04:16

      Hi John,
      You can set the target distance to 150k (150000 meters) and target finish time to 24:00:00, then you should see at any point in the race in both ETA and ahead/behind time how you’re holding up against the schedule (of course during a long race like that you’ll have eating and hygiene breaks so you’ll need to build up a little bit of ahead time to cater for that)

      The lap size can not be a float value in Peter’s (Race) Pacer so instead of 934.8 you would have to set it to 935 meter, so that’ll give about 400 meter of difference at the end of the day, but the distance will be more correct than what GPS distance can give you. If you account this for in your target distance (set it a little bit higher) the ahead/behind time should be able to guide you to your goal.

      I would recommend to turn autolap off and to manual lap only when you start a new lap (you don’t have to do this each lap).

      Either way try the field out before race day to train with it and good luck with your race.


  13. Reply John Evers Aug 31,2017 14:39

    Great Instructions.

    Just some questions as I did a demo “run” (sitting behind my desk).
    1) I managed to install and used 09:35 min/km (there was no field for target finish time…).

    2) Also, I faked a run and of course as I was just sitting behind my desk I was “behind” immediately. So I cheated and pressed the lap (935 m) button a few times. But I suppose your app did not take it as it was outside any reasonable margin since I had not moved?

    3) Last question: I will test it and so far it looks good, but what about 45+ runners with poor reading sight like me? Any chance to have an app with less fields, e.g. just “behind” or “a

  14. Reply John Evers Aug 31,2017 14:47

    3b) e.g. just “behind” or “ETA”. Extra beers in exchange…

    4) I know I should read the manual but I am lazy… Let’s say Garmin believes I ran 930 meters, but the lap really was 935 and I lapped manually. Does this mean the values of Garmin will be “corrected” or does you App distance then deviate from Garmin?

  15. Reply John Evers Aug 31,2017 18:10

    Did another run. So some questions answered I guess:
    1) I assume so.
    2) I tested this and when I was close to a lap it would the difference, if I was far off it would not. That is according to design I assume.
    3) ?
    4) I believe not as the test showed a discrepancy as per design I assume.

  16. Reply John Evers Aug 31,2017 18:17

    By the way…I have been looking for this functionality (i.e. combination of ETA, lap adjustment, behind/ahead) for years. Perfect if you run long distances that consist out of many laps.

  17. Reply Peter Aug 31,2017 19:00

    Hi John

    The lap button corrects to the nearest distance so if your lap size is 935 and you only did a few meters it will always correct downwards (since you’re not over halfway yet)

    An app for people with poor reading eye sight and the same pacer functionality? I already got you covered, I’m running way behind on documentation, but I already made such app, I’ve named it “Peter’s (Hi Vis) Pacer”. This app can be found here:

    When you press the lap button the distance in Peter’s (Race) Pacer is corrected, but this will not affect the real gps distance you have covered. The distance reported after the fact will always be the gps distance, but during running you see the adjusted distance. (In your example the gps distance will remain 930m, while the data field will report 935m).


  18. Reply Hans-Dieter Sep 9,2017 21:26


    Today I bought an FR935 and tried to install Peter´s (Race) Pacer – unfortunately unsuccessfully.
    On the FR935 it´s software/firmware version 5.4 and Garmin Express says that it´s the newest version & everything is up to date.
    However, when trying to install the data fields/app Peter´s (Race) Pacer (version 4.1) it get this message: This app requires an update of your Forerunner 935. Please use Garmin Express to update your Forerunner 935.
    -> Garmin Express states that all is updated.
    What shall I do?

    • Reply Peter Sep 9,2017 21:31

      hi Hans,
      This is a problem with Garmin Connect Mobile. Things that help to solve this issue (try them in this order):
      – shut down your fr935 (long press power button) and start it up again
      – unpair your mobile device and do the pairing again
      – if the above still didn’t help then the final option is to do a factory reset of your device (via the system menu) (this will wipe all user settings from the device so be sure to sync your activities to garmin connect first)

  19. Reply Marty Oct 5,2017 03:47

    Hi Peter,

    Awesome app. Few quick questions;

    1) I have a Fenix 3 HR. I prefer to use the “data field” rather than the “app”, because it gives me access to other data fields. Am I correct in assuming the only things missing compared to the “app” (because the Fenix 3 HR has low memory) is the pre-race screen, and the ability to write the historical data to the FIT file?

    2) Any plans to implement negative splits in the future? Example is “Race Pacer”. Should be relatively straight forward to implement; just apply a linear factor to the pace target based on position through total race distance.

    3) What happens if my watch gets a massive spike and is effectively 600m out (with auto lap set to 1.0km). Let’s say true total distance is 1km, but Garmin recorded total distance is 1.6km. When I press “lap” button, will your app round up to 2km? If so, is there anyway to fix this? (hopefully such a large GPS spike never occurs).

    • Reply Peter Oct 5,2017 10:00

      Hi Marty,


      1/ I understand, I prefer the data field version myself too. Because the data field on CIQ1.x only has 16k memory I can not include all features there, but I’ve included the most important ones: all essential features are in there. The features not available in the CIQ1.x data field version are: pre-race screen, record ahead time to the FIT file, the ability to specify the target finish time or target speed (you have to specify the target as target pace), less data field options: no cadence, power, lap speed, lap time.

      2/ Yes, but it will be a different app.

      3/ The lap button rounds off to the nearest lap size multiple, so 1.6 would round to 2k. I’ve never experienced such a situation as you describe but if such a situation would present itself the only way to fix it would be to fix it gradually in the coming kilometers, eg wait till 2.4k and push the button and then at the 3k point marker correct the distance again.


    • Reply Peter Mar 19,2018 03:38

      The app Peter’s Negative Split is now available from the Connect IQ store:

  20. Reply Gareth Oct 7,2017 08:43

    Hi Peter

    I’ve just received a new 230 and am still quite unfamiliar with it.
    However, I realised to my disappointment that Garmin did not include the Virtual Trainer that I loved from my previous 620.
    Your appears to fix this.
    However, it appears the 230 lacks the initial screen (presumably due to lack of memory), however I cannot see a way of configuring the distance and desired race pace. Can you add some more detail?


  21. Reply Julien Oct 10,2017 09:58

    Hi Peter,

    I relly like this app.
    Question: what is the difference between
    pace, smooth pace (5s average), smooth pace (10s average) as i would like to see the most realistic pace on the creen

    • Reply Peter Oct 10,2017 10:34

      hi Julien,

      Pace = current pace that the watch is reporting.
      Smooth Pace = averaged paced over the last x seconds

      So the smooth pace can be used to even out gps instabilities.


  22. Reply Dirk Kietzmann Oct 17,2017 18:25

    Hi Peter,
    that should be a very good app for my first marathon.
    But i´ve a little Problem….
    I use the Forerunner 235.
    I get the display as on the first picture not to see
    (Display before starting the race).
    Is it possible to set the target time in hh:mm:ss or only in
    pace in min/km ?
    Why can I not sho on the top Middle the Lap-Pace ??
    I can´t choose that…….

    • Reply Peter Oct 17,2017 18:34

      Hi Dirk,

      the 235 is a connect iq 1 device, I’m quite limited in memory on those devices (only 16k) so I have to strip some functionality from these devices (such as the initial screen, removing lap pace, setting the target finish time,..) to allow the data field to actually run…

      There is a solution for all that though, you can use the “app version” of the field, downloadable here:


      • Reply Dirk Kietzmann Oct 17,2017 19:03

        Oh great !!
        But one thing is still missing in Peter´s Pacer…..

        • Reply Peter Oct 17,2017 19:27

          Thats there too it’s called smooth pace


          • Reply Dirk Kietzmann Oct 22,2017 11:14

            Smooth Pace (Speed), in what for Unit ist this ?
            min/km or min/mile (km/h or mpH).
            It shows numbers between 5.1 and 5.9…… (at Smooth Speed)

          • Reply Peter Oct 22,2017 11:33

            It depends on the settings you have set on your watch to be either statute or metric. Speed is either in km/h or mile/h, pace is either in min/km or min/mile.


  23. Reply Another Peter Oct 18,2017 18:27

    Hi, i donated but forgot to mention that it was for the race pacer. Used the same mail as below.


  24. Reply Tabs Nov 12,2017 21:22

    Hi. Thanks for app.
    In my opinion the app need One more configurable field. Maybe in timer slot.
    And the top and bottom fields a Little bigger.
    This app is the near ti perfection

    • Reply Peter Nov 12,2017 21:57

      I don’t have enough memory available to import a custom font, so I have to work with the available system fonts (I can’t make these bigger, they are as they are).
      What would you place instead of the timer field?

  25. Reply Tabs Nov 13,2017 07:03

    Thanks for explanation.
    For use of many people the timer is less important of other field.
    For example sometimes i don’t see the last lap time when the Watch show It and After some second/minute i want know it and i must search in other screen.
    The true is the original screen give us 4 configurable fields, your app 7 field so is fantastic!but only 3 are configurable, so 1 field less then original and for someone is a Little imperfection.

    • Reply Peter Nov 13,2017 13:31

      I can see the advantage of a lap time while doing interval training, but I can’t see the use of this while racing and I would like to keep this field race-focused. I will likely release a more general field with the same layout though, so that may be more suitable for your use case.

  26. Reply Fabio Nov 18,2017 04:14

    Hi Peter, great app!

    is it possible to have the pace value in the top center a little bigger?
    It would be great to have the first line with just two fields, with peace and “behind” fileds more visible.

    I don’t care about the timer…


    • Reply Peter Nov 18,2017 05:32

      Thanks Fabio.

      I don’t have enough memory to import a custom font and the system fonts are as they are, I can’t increase the pixel size of those, so it’s unfortunately not possible to change this. For the same reason it’s also not possible to define alternative layouts (takes memory too, which is simply not available)

      Have you looked at Peter’s (Hi Vis) Pacer, in this app you can show 2 (or 3) fields, the top field can be a field carousel. Store link is here:


  27. Reply Colin Sainsbury Feb 24,2018 16:03

    Just donated but forgot to mention Peter’s race pacer – thanks for all your hard work

  28. Reply Stefan Mar 10,2018 08:04

    Hi, used the datafield today for the first time and tried to use the distance calibration by using the round button. Seems that in my case it doesn’t work well…..distance was not recalibrated. Do I need to switch off the autolap?


  29. Reply Peter Mar 10,2018 08:39

    The round button? Are you using a vivoactive3? Manual Laps are taken by double tapping on that device (and you also need to enable Manual Laps in the run settings first.

  30. Reply Stefan Mar 10,2018 19:57

    using a fr935…think it works well now. install a 2nd time an it looks good.
    AutoLap of the FR can be active,altough by using the lap button for recalibrate the distance, right?

    • Reply Peter Mar 10,2018 20:02

      Correct, you can leave auto lap on. Just make sure the lap size in the app settings of Peter’s (Race) Pacer matches the auto lap size on your watch. (if you autolap by 1k set 1000 meter in app settings, if autolapping every mile set 1609 meter in app settings).

      Manual lap will apply distance correction.

  31. Reply Emily Mar 19,2018 01:37

    Hi Peter,
    Great data field. Tested it out last weekend. Is the “Ahead” and “behind” time by pace or total estimated time?

    • Reply Peter Mar 19,2018 02:55

      Thanks Emily 🙂
      Ahead/Behind time is the total deviation compared to the expected target time when you run at the expected pace. Eg when your target is to run 10k in 1 hour (6min/km; 10k/h) and you are currently at the 5k point in 29:55 then you are 5 seconds ahead.

  32. Reply Emily Mar 19,2018 01:42

    Also, what is the difference between “Average Pace,” “Perfect Pace” and “Pace”? I saw what “Smooth Pace”is above. The default set up has average pace and pace visible. Just curious what the benefit is if the other fields.

    Thank you

    • Reply Peter Mar 19,2018 03:01

      pace = current speed in minutes/km or minutes/mile
      average pace = average speed in minutes/km or minutes/mile
      perfect pace = minimum pace you need to maintain to reach the finish for you target time. Eg when your target is to run 10k in 1 hour and you are currently at the 5k point in 29:55 then the perfect pace will be 6:01
      (as you built up 5 seconds ahead time you can run 1 second slower each kilometer and still reach the finish within your desired finish time)

  33. Reply Michel Mar 22,2018 00:30

    I’m the owner of a Fenix3 watch. As I push on the LAP button the screen turns into analogic clock watch face. Can you help me?

    • Reply Peter Mar 22,2018 09:36

      hi Michel,

      I don’t have a fenix 3 watch, but we’ll try to figure out what’s going wrong.

      Can you do the following and give me feedback about each of the bullet points:
      1/ Connect your device with usb to your computer and check for error logs. There’s a potential one in the root of the device called err_log.txt and one in the folder \apps\logs\ciq_log.txt.
      2/ Can you remove the Peter’s (Race) Pacer data field and then push the lap button. What happens now?
      3/ Can you uninstall Peter’s (Race) Pacer, re-download Peter’s (Race) Pacer, assign it back to the run activity profile and push the lap button. What happens now?

      The log files could be big so probably best to send these to my email address

  34. Reply Michel Mar 22,2018 18:58

    Finally I found the problem. I created a new “activity” that I called “race” and it appears that when you create a new activity, the activation of the LAP BUTTON is automaticaly set to FALSE. 😉 Thanks

  35. Reply Maike Apr 2,2018 09:26

    My garmin 235 pauses the run when I have my stops during a run. Will the race pacer keep this into account and use the total time including the time I paused, or will it affect the perfect pace indication and the time ahead/behind?

    • Reply Peter Apr 2,2018 13:04

      It might work together with the autopause option, but I’m not sure. This data field is really meant for races, where having the autopause option set is not very relevant (the race clock does not pause when you stop). I would recommend copying the Run Activity profile to a Race activity profile where you disable the autopause option.

  36. Reply Maike Apr 2,2018 09:32

    Another question:
    Doing the configuration in Garmin Express, the dropdown menu under Target Type is only showing Target Pace, nothing else (and I would like to use Target Time).

  37. Reply Sandile Apr 9,2018 15:45

    Hi Peter,

    I will be running a 90Km and I am planing to run it in 10Hrs, how do I input/set these values, I have an app running in my devise, how to tell my watch that I will be running 90 Km? Please explain me step by step because I desperate need your app, it is exactly what I bought this watch for. I went through your description but I dont get it, on the start line what must I do, you spoke about the LAPs how does that feature in the distance that I need to run? please assist

    • Reply Peter Apr 9,2018 16:53

      set the following in the settings of the app:
      – target distance: custom
      – custom distance: 90000
      – target type: target finish time
      – target pace: 10:00:00
      – lap size: set this the same size as your autolap size on your watch (1000 if 1k autolap, 1609 if 1mile autolap)

      I’d suggest you train with the app before taking it to the race.

  38. Reply Tom Shackelford May 10,2018 14:45

    Hi Peter,

    How do I update the Target Pace and Distance on the watch? I have the 735xt and want to be able to make those changes from the watch if possible, as I will be running varying distances throughout any given week. Is the only way to do it through Garmin Express?

  39. Reply rémi nfkb Jun 9,2018 12:06


    I’m training for an Ironman.

    Do you have feedback of people having use the app during an Ironman ? what’s the impact of the app on the battery ? I expect to do the IM in 12 hours with a running part of 4 hours. Do you think the Forerunner 935 will stand it ?


    • Reply Duffy Jul 18,2018 13:50

      i don’t know the Impact on the battery, but be careful if u use this app in Tri-Mode.
      The first times, i hit the lap button to sync the Kilometer. But this Ends the running part 😉

      • Reply Peter Jul 18,2018 14:26

        it’s indeed not meant to be used in multi-sport mode as the lap button moves on to the next sport there…

  40. Reply Calvin Aug 12,2018 21:19

    Hi Peter,

    I‘ve got a Forerunner 935. Your app supports my trainings much.
    How can I change the displaybackground into the lighter version as shown at the photos?



    • Reply Peter Aug 13,2018 07:22

      at the moment it shows the default background of whatever the device
      chooses as default.
      for the app version this is typically black and for the data field
      this is typically white.

      I’ll add it to my to do to foresee a property to switch the background
      from within the application settings.

  41. Reply Ryan Aug 16,2018 15:43

    How is the ETA calculated? Guessing it either assumes your current pace continues or your average pace continues?

    10mi race, goal time is 1:00:00, at the 5mi mark I’m at 0:31:00.
    Current Pace is, let’s say 5:45 when I cross the 5mi mark
    Average Pace is 6:12

    Is my ETA 0:59:45 or 1:02:00?

  42. Reply Mirko Sep 7,2018 17:16

    Hi Peter, can you explain what is the meaning of the power zone fields? Thank you in advance. Mirko

    • Reply Peter Sep 7,2018 18:07

      The power zone define the 7 power zones, they are used only to color the power value in a specific zone color.

      For the power value to display something you need a external power meter (a bike power meter when cycling or a stryd when running).

  43. Reply Ed Nov 11,2018 07:09

    Yesterday the 10th of November I walked around 13000 steps and around 5 miles and got 0 credit when I checked it at the end of the day.

    • Reply Peter Nov 11,2018 20:29

      Peter’s (Race) Pacer is a data field, it shouldn’t have any effect like you describe on Garmin native functionality. Data Fields just enhance native functionality. Cheers, Peter.

  44. Reply Oscar Nov 16,2018 09:51

    Hi Peter, I have a race tomorrow and I sent a donation on Nov. 14th. Unfortunately, I haven’t receive the code for the app (Peter’s race Pacer). Could you please look into it?

  45. Reply Gerold Dec 30,2018 10:25

    Hello, I’m completly new into Garmin watches. I’m trying to install your app on my new vivoactive 3, but it doesn’t show up! After “Manage Apps”, I can’t see your app anywhere. I syncronised the watch via mobil phone, connected it via pc, I installed Garmin Express, which says, that the app is installed to the clock… but I can’t find it.
    Am I doing something completely wrong?????

  46. Reply Joe Feb 5,2019 10:12

    Hi Peter,I made the 19 euro donation via the link that you posted earlier and I’ve received my confirmation of payment, but no unlock key. When can I expect to receive the code to unlock all your apps? I’ve checked my spam folder etc and nothing!!

    • Reply Peter Feb 5,2019 13:27

      Sending the donation key mail is a manual process and the key is typically delivered within a day, when you check now you should have received the email.

    • Reply Joe Feb 5,2019 13:33

      Thank you just received the e-mail with the key

  47. Reply Todd Mar 15,2019 20:48

    Used the Peter’s (Race) Pacer for a few half and full marathons and while on my training runs. Great app, helped me a lot to reach my goals and always to target PB. So time to send the donation. Done 🙂 Thanks to Peter & keep up the great work. Love this and the other apps.

  48. Reply Laurent Thillaye Mar 27,2019 14:54

    Hi Peter,
    Your pacer seems to be really interesting, I am going to use it for the Paris Marathon next 14th april.
    Can you tell me if we can personalize the the “Like it? Donate!” message from the data field if I make a donation?
    If we can’t, I am also to make a donation 😉


    • Reply Laurent Thillaye Apr 2,2019 14:06

      Hi Peter I just send a donation, please send me the code!
      I will use your app for the “Paris Marathon” next 14th April 🙂
      Thank you!

  49. Reply Kumar Mar 31,2019 16:24

    Hi Peter,

    I used this App last year to run the Tokyo marathon and it worked well as they had km markers in Tokyo. This time I am running Boston, where the km markers may not be there or may not be prominently displayed. So I would like to set the lap size to 1609 meters and use manual lap. But I want to have the pace(s) displayed in min/km. Will this work?

    Also, in this case, should I set the goal pace in min/km or min/mile?

  50. Reply Jorge P. Apr 14,2019 10:24

    Very nice! Payment sent via PayPal. Do you get the payment? When do you sent me the code? Thanks 👍🏾 Jorge (jorgepnt)

    • Reply Peter Apr 22,2019 07:38

      keys are typically sent within 24 hours, so it should be already in your mailbox now, if not contact me on my email address. 🙂

  51. Reply Toby Y Apr 21,2019 02:41

    I sent payment via PayPal on April 16th. Did you receive? I haven’t gotten a code yet.

    • Reply Peter Apr 22,2019 07:36

      Yes I have sent it on apr 17, be sure to check your spam mail and mark me ( as a safe sender. Contact me on my email address in case you don’t find it.

  52. Reply Athelia Apr 30,2019 07:00

    It will be the 1st time I am using your app tomorrow in a 10k race. Is there an easier way to change your race distance besides going into Garmin Express. it would be great if you could change the race distance through the mobile or on the watch itself. If there is already a way please let me know, thank you

  53. Reply David Tikiøb May 16,2019 16:55

    Hi Peter,
    I just started using your app a few days ago on my Garmin 245 and love it. I have a marathon in three days and would like to get rid of the ads on the Race Pacer. I tried to donate through PayPal but was unable to. Do you have any suggestions? Awesome job creating the Pacer! I can’t imagine ever racing without it now that I’ve tried it.
    Dave T

  54. Reply Tomasz Jun 17,2019 07:13

    Hey, I just got Race Pacer, tested it for 5 minutes and donated immediately – that’s exactly what I need for the upcoming trail run. Thanks! 🙂

    I have a question though.. I assume it will not work for a triathlon but maybe there is some kind of workaround? Even if I could use it for the running part it would already be helpful.. but how do I configure it in this case? The problem is that I only care about total time. So depending on my swim and bike time I will have more or less time for running. So I’d need to configure the total time of the triathlon but only “start” your app on the running part.

    Does it make sense? Any ideas?

    Or maybe you have (or plan to have) a similar data-screen for triathlon? 🙂


    • Reply Peter Jun 19,2019 14:48

      It wouldn’t work in a multisport configuration I’m afraid. I also have no immediate plans to do a triathlon app (as I don’t tri myself). Cheers, Peter.

  55. Reply Livia Jun 23,2019 13:15

    I purchased 245s because of this app after I saw the review of it on YouTube. And it doesn’t work. After installing and adding to data fields on my watch all I see is IQ with a yellow exclamation mark. Please help!

  56. Reply Ami Jun 23,2019 20:14

    I am using Peter’s (Race) Pacer on my 935.
    Recently, when I click the Start, the apps starts but the watch face does not change, and I can see the parameters as it appears on the site and as it did in the past like pace, time, hb, atc’, but similar to the settings screen before clicking the Start.
    I deleted the app (and sync) and reinstalled (and sync) without change..
    Please help

  57. Reply GD Aug 6,2019 03:38

    Hi Peter,

    I used your app for a half marathon last week, but had some issues.

    I was targeting 1hr 45mins, and crossed the line just after 1hr 40mins. However, by that point, the right middle field (“time ahead/behind”) was telling me I was nearly 27 minutes ahead of my target time?!

    My settings are as follows:

    Lap size: 1,000
    Auto-lap: On
    Target Distance: Half marathon
    Target Type: Pace
    Target Pace: 1:45:00
    Adjustable Race Goal: 5 (Default – no idea what this is or does, to be honest, so I left it alone)
    Top Middle: Time of Day
    Row 1 Left: Perfect Pace
    Row 1 Middle: Lap Pace

    Everything else was default.

    Any idea on how I messed up so badly?


    • Reply Peter Aug 6,2019 07:22

      Set Target Type to “Target Finish Time” or if you use Target Type “Target Pace” then set 5:00 as your kilometer time.

      Adjustable race goal is a Peter’s Pacer (The App) feature that can adjust the pace/km by pressing the up/down button while you race.

  58. Reply Sxott Aug 16,2019 11:59

    I downloaded the app and it loaded onto my vivoactive 3 no problem without having to use any background changes I tried to dosaod it again after trying other apps but I can’t get it to load I have tried following your video but its a different watch

    Please help

    • Reply Peter Aug 16,2019 17:45

      it should be similar, but search for “youtube edit data fields” to get a video for a how to do it on your device.

  59. Reply Freddy Aug 31,2019 05:02

    Hi Peter,
    I posted a message for you in Garmin FR935 forum about the new feature PacePro (only for fenix 6). See link below.

    Thanks for what you do for the community!

    • Reply Peter Sep 2,2019 17:57

      it’s unlikely I’ll take this on Freddy, my to do list is too long to invest time in copying Garmin features to older watches.

      • Reply Freddy Sep 17,2019 10:48

        Pity. Thanks for your answer.

      • Reply Freddy Sep 17,2019 10:53

        You don’t have to copy. You just update your datafield “Peter’s (Hi Vis) Pacer” adding intervals for distance and pace… No?

        • Reply Peter Sep 17,2019 12:06

          I’ve already got for years of work on my to do list without taking this on Freddy, so for now this is a no.

  60. Reply Christoph Sep 13,2019 06:26

    Hi Peter,

    I have been using your race pacer just fine, but something must have happened in the last days, I am not sure if it was the update of garmin iq connect or of the race pacer app itself.

    This morning I wanted to set the target pace for a short race to 4:00, so I went into the settings, where it showed my last setting of 5:05.
    If I try to change the target pace, as soon as I enter a digit the app shows: “Only letters and numbers are allowed”, and I cannot enter a value in the m:ss Format.

    If I enter just the minute Part (4), since I cannot enter any seconds, the settings dialog will save and update, but then the widget on the app crashes (it shows a small IQ logo with an exclamation mark or something like that).

    I did deinstall the race pacer, reinstalled it and added the license key, now it has the preset value of “6:00” in target pace, so at least the widget works again. Still, though, I cannot enter any new value.

    As soon as I activate the field and type a number (say, I try to change the 6:00 to a 64:00, so that I could then delete the 6 and make it a 4:00) it shows “onnly letters and numbers are allowed” and doesnt allow me to save.

    It looks like I won’t be able to set the pace for todays race, but that’s ok, it’s not a killer. But it would be nice if you can find out what is going wrong and fix it, the next marathon race is up the corner and I really would love to rely on the target pace feature.

    I seem to have to connect iq version v1.1.1, last update on 09.09.2019

  61. Reply Christos Sep 17,2019 20:44

    Hi Peter,

    I am using the data field with my Fenix 5. I have the Stryd power meter but I am not getting any measurement in the specific field in the Peter’s (Race) Pacer.

    Any clue how to fix it?

  62. Reply Holger Sep 22,2019 19:39

    Must „Auto Lap“ enable or disable?

  63. Reply Lane B Sep 23,2019 02:22


    I must say right up front I am not very tech savvy! I downloaded the pacer app and synced it with mu Garmin 920xt. I went to make it one of my data fields but it is not a choice. It is however an activity. Is that how it is on the 920 or did I do something wrong? I wanted to toggle between it and my other screen while running my marathon.


    • Reply Peter Sep 23,2019 07:45

      In the app store there are 2 versions of this app: Peter’s Pacer (The App) which is a standalone activity and you can start right way. There’s also Peter’s (Race) Pacer, this one you have to add to an existing activity profile such as run via run settings (see the video above for a visual how to)

  64. Reply David Tikiøb Sep 26,2019 21:01

    Hey Peter,
    Love the Race Pacer Screen! I had it installed on my original garmin 245 (and it helped me qualify for Boston!) I paid the 5 euros to get the donate message off the screen. That garmin permanently locked up so I got a replacement. That 5 euro key didn’t work on the new watch (I guess it only works once?) when I installed your app again so I purchased the 19 euro key because I want to support your efforts and I no doubt will be using more of your apps! It worked. Just recently just the Race Screen app locked up on my new 245 (everything else worked fine) and all I saw was “Garmin IQ!” on my watch face when I tried to use Race Screen so I uninstalled the app and reinstalled it. It’s working perfectly again but when I put the 19 euro key in the Donate message will not go away. Does that 19 euro key only work once on the same app? Can you help me out? Thanks in advance!

    • Reply Peter Sep 28,2019 08:28

      no the keys should work if you transfer to a new watch. Uninstall/Reinstall the app and make sure to have no extra spaces at the end of the key (type it over instead of doing copy/paste). Contact me on my email ( in case it does not work.

  65. Reply Andrew Oct 2,2019 07:39

    Hi Peter, big fan of this data field, been using it for years and recommend to nearly everyone I see who wears a garmin.
    I know feature requests are a pain, but I’m going to ask anyway. Some races have a count down marker board versus a count up. For a 5km/10km this is no problem, but for a half marathon, marathon or longer it’s an issue. What these races do is have a marker after 195m that says “42km to go” then “41, 40” etc. It would be great to have a field where we can specify what the first lap is (195m) and then the rest would be rounded to 1000m for example.
    Hope that makes sense.

  66. Reply Hamish Oct 6,2019 10:47

    Hi Peter

    Looks like a great data field, thanks, just donated. I’m running a marathon in a week, will be great to have the distance synced with race markers! I’ve run this race a few times and it usually ends up half a kilometre or more out of sync, making it challenging to pace correctly, looking forward to trying it out!

    One question, I will also use a couple of other data screens, HR etc. I would think my watch will be on your’s for the majority of the run, but if I am viewing another screen when I pass a km marker and hit the lap button, does that still correct the distance on your data field?

    Thanks again


  67. Reply Yuri Oct 20,2019 10:43


    Is there a way to reset the distance to the one reported by GPS? On my run I hit lap button by mistake (thinking I was still in audio player), but did notice that until several minutes later. That caused the screen to think I am significantly ahead until the end of my run.

    Thanks in advance!

    • Reply Peter Oct 20,2019 11:49

      when you see your mistake within 30 seconds just press lap button again to undo your mistake. when you see it later there’s no way to undo.

  68. Reply Bogdan Oct 24,2019 18:01

    I bought Peter’s race pacer few days before Chicago Marathon but it wasn’t usable. I don’t know from where source it takes distance but after 10km it shows around 500m and around 45 min behind. After I finished the race it shows me distance around 1km and many hours behind. Garmin shows the real distance in running data fields. I also use Garmin foodpod which has a good accuracy when running on streets with skyscrapers.
    I tried to correct distance after 5000m but this didn’t changed anything. I have Garmin Fenix 5 with latest SW: 14.20.
    My settings:
    Lap size: 5,000
    Distance: Marathon
    Target Finish Time
    Target Pace/Speed/Finish Time: 3:14:45

    I don’t know if I filled correctly last field. I wanted to finish marathon in 3h14m45s

  69. Reply Peter Oct 24,2019 18:27

    If you put lap size to 5000m this means if you push the lap button (this includes autolap…) before you reach 2500m the distance will be corrected down to 0….

    Why did you choose 5000m lap size? This seems a very odd choice….

    Do you use autolap? How big is the autolap?

  70. Reply Bogdan Oct 25,2019 04:28

    I choose 5000m because Chicago marathon is in miles and has KM marks every 5km.
    Autolap on Run application was set every 1km.
    That could be the problem? It reset distance on run app autolap? I didn’t know that.

  71. Reply George Carlson Nov 3,2019 01:49

    Is there a non-paypal way to donate to get an unlock code? Pay-pal locked my account 10 years ago.

    • Reply George Nov 3,2019 01:53

      Never mind. Looks like you got that covered here:

      • Reply George Nov 3,2019 01:56

        Coffee sent 🙂

        • Reply Alex Nov 24,2019 06:38

          Hi really like the concept of this app and taking a lot of mental work out of the race. I just have a question I hoped you could help with. I work in miles and minute per mile pace on a day to day basis in training. My marathon is in Europe, so distance markers are in kilometres. Can I set it up so I can record laps in kilometres to keep the pace accurate, but still have lap pace/average pace in minute per mile etc?? Thank you in advance. Alex

      • Reply Alex Nov 24,2019 13:51

        Hi Peter.

        Really like the concept of this app and taking a lot of mental work out of the race.

        I work in miles and minute per mile pace on a day to day basis in training. My marathon is in Europe, so distance markers are in kilometres. Can I set it up so I can record laps in kilometres to keep the pace accurate, but still have lap pace/average pace in minute per mile etc?? Thank you in advance. Alex

        • Reply Peter Nov 24,2019 15:48

          the app can work in miles or kilometers, but you can’t do a mix like you would want.

          • Reply Alex Nov 24,2019 17:02

            Ok thanks,

            But I could leave it in miles and just lap at a couple of kilometre markers during the race that I know correspond with a mile split like 21k/13miles? That would work ok to keep pace accurate?

          • Reply Peter Nov 24,2019 20:39

            as long as it corresponds to the mile marker that would be fine, pushing it at other kilometer markers would correct it to the nearest mile

          • Reply Alex Nov 25,2019 17:33

            Thanks Peter,

            I have just found out I can change the distance unit on my fenix 5+ to KM’s while keeping pace in minutes/mile. I’ve set autolap to 1km, I’m assuming this will work perfectly now with the lap feature if I leave it set to 1000m?? But still display the min/mile pace as this is what’s set in my watch? Will test it on track session Thursday…

  72. Reply Sigrid Dec 8,2019 08:58

    Hello Peter,

    I’m looking for a “Time ahead-behind” data field on my Fenix 5S that does not use a fixed pace, but instead uses previous pace/GPS position.

    As a run in a hilly landscape, my pace changes all the time. I use “race an activity”, and would than like to see if a run faster or slower than before.(same run)
    Garmin has a screen you get automatically when starting this functionality, showing time ahead/ a not useful field showing a running man/ Est Finish Time. But nothing you can change about this screen.
    As you seem to be using navigation functionality with “race an activity”, you can change the screens for that, but nowhere I find the Time ahead-behind parameter.
    I would like to make a Time ahead-behind/ heartrate /pace screen or something like that. So something that looks like your (HiVis) pacer.

    I’m a happy user of your All in One datafield!
    Kind regards,


  73. Reply Frank Jan 27,2020 18:46

    I sed the field on my fenix 5x for some time with ni problems. Some weeks ago I switched to fenix 6s an since rhen the recorded Ahead Time in my activities is 420 for the whole distance.
    I checked the settings – half marathon in 1:59:30

  74. Reply Dip Jan 30,2020 16:04

    Peter, I love this app but having a little problem with the ‘lap’ button. I tested it today and there was no change in distance or time, I tried it twice during my run. At the end of my session, the distance did actually change to the correct mileage. Unfortunately, at the end of the run it’s not so helpful. Any ideas what is happening ?
    Also, I do not get the initial setup screen *cIQ2. I have a Garmin Forerunner 235 and set it as single field.

    • Reply Peter Jan 30,2020 16:29

      It’s normal that you don’t get the initial screen, your 235 device doesn’t have enough memory for the intro screen.

      Have you put lap size in the settings to the same value as your auto lap size or turned off the auto lap? the way the lap button works is that it should correct towards the nearest multiple of the lap size (standard set at 1000 meter), so if you press the lap button at 0.56 k it should display the distance as 1.0k

  75. Reply Dip Jan 31,2020 11:20

    Peter, Thank you for your reply. Having read your info i realised i would not get the initial screen, thanks for clarifying it. Initially, I have the distances different, I realised reading through some of the posts that they needed to be the same. I changed them last night. Autolap is now set to KM 1609(1610) and the app lap size is 1609. I want to record in miles. Today i tried it and it did not work, no adjustments at all! also my distance is now is showing in KM but the auto lap is buzzing at each mile. Not really sure what is happening. I would prefer everything to be showing in miles, ie. distance in miles. If i change the Autolap back to miles and set the value at 1609, would that work, not sure it will ?

    • Reply Peter Jan 31,2020 12:15

      yes the lap size needs to be the same as your autolap size. so if auto lap is 1 mile then your lap size in the app settings HAS to be 1609

  76. Reply Dip Jan 31,2020 14:10

    I will try it again, but pretty sure I had the first time, auto lap at 1m and my watch system settings in Miles. The lap size in the app was at 1609. I am sure it is user error. I will have another go tomorrow, if it does not work, then i will go to the app version to see if that fixes the problem.

  77. Reply Antony Feb 3,2020 22:24

    Hi Peter,
    Really struggling. Trying to set up Race Pacer and Hi Vis Pacer. Trying to set up 5k distance at 9:39 minute miles to achieve a 30 minute 5k.
    In the settings I have the following:
    ● lap size = 5,000
    ● custom distance of 5,000
    ● target type = target pace
    ● target pace = 9:39
    I have my Garmin set up on miles, is this the issue as to why it wasnt working when I went for a run? It was saying I was far behind my target even though I was sort of close.
    What am I doing wrong?
    Many thanks

    • Reply Peter Feb 4,2020 15:59

      The error is in your lap size. If auto lap is on the lap size has to match the auto lap size, so this is 1609 in case you use miles.

      The lap size will also be used as correction unit rounding off to the nearest mile whenever you press the lap button. (Generally I would actually recommend to turn auto lap off).

      I hope I didn’t confuse you more with this explanation…

      • Reply Ant Harvey Feb 5,2020 20:34

        Hi Peter,
        Appreciate the message. Just sent a donation for your apps.
        Just to confirm:
        If I have my Garmin set to show miles with auto laps each mile then I set up your app to run a 3.1 mile run (5k), will this work:
        – lap size = 1,609
        – distance = 4,827
        – target type = target pace
        – target pace = 9:40

        Similarly if I set my Garmin up in KMs with auto lap every 1km. To run a 5k in 30 minutes I would set up your app as follows?
        – lap size = 1,000
        – distance = 5,000
        – target type = target pace
        – target pace = 6:00

        If this is correct for each scenario I will be able to set any distance and any pace and be super happy!
        Many thanks

        • Reply Peter Feb 5,2020 20:43

          in both cases you can set the distance to the actual target distance (in this case 5000), the other settings look ok.

  78. Reply Or Feb 23,2020 06:32

    Hi Peter,

    Just making sure I understand… Estimated time of arrival is computed only with distance left at target pace?

    And might you have some way (in the future?) to export the manually pressed lap points? I’m looking for a way to post process the GPX so I can better analyze the run (esp. when GPS is seriously off in a city marathon…).


  79. Reply Peter Feb 23,2020 11:23

    correct eta is time passed so far + target pace for the distance left.

    the connect iq api doesn’t differentiate between manual and automatic laps, but you can choose export original in garmin connect to download the fit file and see the lap splits.

    • Reply Stephane Jun 20,2021 20:42

      Peter, on April 16, 2018, you mentioned to another user ETA was calculated using average pace. I was assuming that that meant ETA was based on: times passed so far + average pace X outstanding distance. I understand now that the latter is actually using target pace, which is a bit strange, since it is only a theoretical pace (average pace or current pace would make a bit more sense I believe). Is my interpretation of how ETA calculations works correct? Thank you

      • Reply Peter Jun 21,2021 06:07

        Peter’s Race Pacer sticks to the race plan. The app’s primary purpose is to be able to pace marathons in exact target times and bring a group of people to the finish line within the desired time (but also not much faster). Also when you are racing for yourself it’s a good idea to honor your race plan, if you change your mind during race and go harder than planned it could break you up.

        • Reply Stephane Sep 25,2021 13:18

          Hi Peter, just wanted to follow up on this. I am still unsure how ETA is calculated. According to your message, you said ETA was time passed so far + outstanding distance at target pace, but that does not seem to be the case. As an example, to try, I walked today for 1km in 20 minutes, my ETA increased to 14 hours, and not the 3:10 target for a marathon (+ 20 minutes – 4:30, target pace for the km I did). Theoretically, according to your description, if I press start and stay still, my ETA would only increase by the time that has passed (not moving). Could you please help me understand this metric? Running Berlin tomorrow!

          • Reply Peter Sep 25,2021 13:41

            right, I checked my code and what I said in earlier comment is not correct. Eta is average speed * target distance

  80. Reply JM Feb 28,2020 01:58

    The intro screen doesn’t show on Venu? Believe its high memory.

  81. Reply Peter Feb 28,2020 07:44

    It’s indeed high memory and I actually show the intro screen but it’s hidden by the waiting for gps screen (I’ve asked to garmin to reduce the size of that window so that the intro is visible like on other watches, but they said they will not do that.)

    One solution is to use Peter’s Pacer (The App) but at the moment it’s not compatible yet with the Venu (it’s one of the many things on my to do list…)

  82. Reply JM Mar 1,2020 02:10

    Thanks for your attentiveness, payment sent for all your apps.

  83. Reply L R Mar 4,2020 14:36

    Is the average pace what Garmin would call the lap pace? It seems to be configured to show instant pace. Is there a way to change that?

  84. Reply Lukasz Mar 8,2020 13:05

    How to change avg pace=6:00min/km to another value?
    I have Vivoactive 3 and Garmin Connect on Anroid.

  85. Reply Lukasz Mar 8,2020 19:07

    But I dont have Appearance menu or Activities, Apps & More button in my Garmin Connect (version 4.27.1)

  86. Reply Pawel Mar 26,2020 13:47

    Hi, I donated 2 days ago but not received code. What is the contact possibility, should I mail you?

  87. Reply Dana Mar 29,2020 23:00

    Peter, I made a donation and received my code but I don’t know where to enter it. Can you link me to instructions?

    By the way, your apps are great!

  88. Reply Marcel Apr 10,2020 16:16

    Hi Peter,
    Great app on my 645 music!
    Would like to donate 5 euro but can also donate 19 euro if i can find out what other apps are available. Do you have a link and/or website?

  89. Reply Marcel Apr 12,2020 16:09

    donation payed….:-)

  90. Reply Sergiy Oct 16,2020 20:59

    Hey Peter, great Data Page – many thanks for your effort!

    I have 945 and I installed Peter’s (Race) Pacer page and STRYD Power Zones. When I add STRYD Poerzone to Rub app as a CIQ data page and then try to add Peter’s Pacer the latter shows a blinking text “CIQ error” in the corresponding data page.
    Help is appreciated, I do like your Data Page better than the 945 native Pace Pro.

    • Reply Peter Oct 18,2020 19:31

      I believe it’s currently a firmware issue on the 945 that you can’t use more than 1 connect iq field at a time

  91. Reply pp42 Dec 28,2020 10:35

    Thanks for this app, is the code opensource ? Thanks 🙂

  92. Reply leo Dec 30,2020 13:30

    Thanks for the good work.

    ETA is always set to a Pace value. Do you know how to set it to a Time value ? Does choosing target Time or target Pace has an impact on this metric ?

    • Reply Peter Dec 30,2020 18:31

      eta will be the predicted time as soon as you start running.

      it’s important to set target type to represent properly what you have chosen below as target speed / target pace / target time

  93. Reply Nico Feb 17,2021 16:10


    Bought myself the Garmin FR645 last week. Installed your app and have a question. During my 10k run I have 3 points where I hit the lap button to compare my time with an earlier run at that point.
    When I do so while your app is running the ahead/behind field freezes.


    • Reply Peter Feb 17,2021 20:50

      I have no idea why the app would freeze.

      The lap button has special functionality and really should only be used at or around lap size (typically 1000m).

  94. Reply Alexander Mlynski Mar 23,2021 19:32

    I love this datafield and happily sent a donation.
    It’s a pitty that the intro screen is hidden on the Venu.
    Maybe Garmin could be asked to make the standard screen (waiting for GPS) smaller once GPS is ready?
    The Race Pacer App is no option for me because I still like to have additional screens with additional datafields.

    • Reply Peter Mar 23,2021 20:31

      I concur, but it’s not something I can do something about.

      It’s something that you could ask through Garmin Support if the product team wants to adjust this to a partly overlapping screen.

  95. Reply Caleb Bates Jun 2,2021 11:44

    Hi Peter,

    I’m just beginning pacing, and I want to ask a question before doing the math and comparisons. If I update my lap to be 1 mile (1609 m), will my pace be based on my set lap? Or will it still be min/km? Thanks,


    • Reply Caleb Bates Jun 2,2021 11:50

      Basically, will my pace be min/1.609 km and therefore min/mile? I’m targeting a 10:00 min/mile pace. I know I can set my target to instead be 06:13 min/km, but just wondering if altering the lap also affects the pace.

    • Reply Peter Jun 2,2021 11:51

      If you update your lap size be sure that the lap size is the same on your watch as the internal lap size in the pacer. so if 1 mile set it to 1609.

      the target pace depends on your pace unit settings, it could be minutes/mile or minutes/km. The easiest is if you set target pace type to target finish time then you can just enter your total time than you want for the complete distance

  96. Reply ChrisW Jun 8,2021 11:24


    I am a little bit confused how auto-lap and manual corrections are used at the same time.

    What happens if auto-lap is triggered 50 meters before a lap marker and I hit the lap button a few seconds after auto-lap manually? Does it undo the correction that maybe done by auto-lap?

    kind regards

    • Reply Peter Jun 8,2021 12:06

      That’s a special case which will normally ignore the auto lap, but to avoid confusion I recommend to turn off auto lap, this way you only apply the correction at the kilometer mark.

  97. Reply Alberto Aug 17,2021 12:51

    Hi Peter,

    great and useful app. But I don’t understand how it calculates the perfect pace if you set the “flexible” Target Distance. Do you use the “custom distance”?


    • Reply Peter Aug 17,2021 15:11

      perfect pace is calculated based on your target pace not on target distance (unless you choose that option which in case of flexible distance doesn’t make real sense), in case of flexible distance your target is the next big one (5k/10k/21k/etc)

  98. Reply Rick Oct 28,2021 22:09

    I’m running a 6 hour race in a few days. The lap size is 1900m but start lap is 600m. Is there a way to set a different lap size for the start lap? Otherwise, when lapping first time distance will be recalc to 0 I guess. This means total distance will be always be 600m short. Any suggestions how to set it up?

    • Reply Peter Oct 28,2021 23:36

      No that’s not possible, I’d suggest to run the race without distance correction and keep your lap size at 1000 meter

      • Reply Rick Oct 29,2021 08:07

        Ok. Thank you for your reply.

        I suspect the GPS error will be larger than 600m so I’ll use the correction.

        I’m thinking, if adding a few meters on every lap the error will reduce every lap and at finish be eliminated (if reaching my target)

        For simplicity, let’s say I aim for 30 laps. If I set lap distance to 1920 the 600m error will reduce every lap and after 30 laps eliminated.

        The error will obviously be on the other side after 31 laps but that won’t matter since I’ve already reached my goal.

        Does this make sense?

        • Reply Peter Oct 29,2021 08:43

          It’s your race so it’s your choice but I think you’re better of not doing it like that. Personally I would run the 6 hour race without doing distance correction and just set the internal lap size to 1000. (Even with this setup I could still do a correction when I wanted to, but I have to wait until the multiple of the lap size coincides with the lap crossing, a first occurence is after 11k – 600 + 8×1300)

          Another possibility is to set autolap off and set the internal lapsize to 100, then you can push the button at every lap crossing. One problem with the 100 is that it is a very small number and it might be too small number and correct towards the wrong end of the 100 (if the inaccuracy is more than 50 meter in a lap).

          Anyway whatever way you choose, I would suggest you do a test run to see how it goes. 🙂

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