# Intervals and wahoo questions

**URL:** <https://forum.intervals.icu/t/intervals-and-wahoo-questions/133468>\
**Category:** Questions & Help\
**Created:** [5 November 2026 10:09 UTC](https://forum.intervals.icu/t/intervals-and-wahoo-questions/133468 "2026-11-05T10:09:11Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![m4ri0g0](https://forum.intervals.icu/user_avatar/forum.intervals.icu/m4ri0g0/32/27053_2.png) [@m4ri0g0](https://forum.intervals.icu/u/m4ri0g0)\
**Post date:** [5 November 2026 10:09 UTC](https://forum.intervals.icu/t/intervals-and-wahoo-questions/133468/1 "2026-11-05T10:09:11Z")

</div>

Hi,

I’m trying to understand how the Wahoo sync integration handles workout targets and scheduling internally.

I noticed that a workout exported from Intervals.icu as a FIT file and copied manually to a Wahoo ROAM 3 loses all power targets on the device. The interval durations are present, but targets such as `150-180 W`, `220 W`, or `210-225 W` are not recognised.

However, if I sync the exact same workout through the Intervals.icu ↔ Wahoo integration, the workout appears correctly on the Wahoo with all power targets intact.

This makes me wonder:

1. Does the Wahoo integration send the workout in a different format than the FIT export?
2. Are absolute wattage targets converted to `%FTP` or zones during synchronization?
3. Is the FIT export standards-compliant but exposing a limitation in Wahoo’s FIT workout parser, or does the integration generate a Wahoo-specific workout representation?

I also noticed a separate issue where date-only workouts appear one day late on Wahoo unless I assign an explicit time (e.g. 12:00). My Intervals timezone is different from my current location, so I’m curious whether scheduled workouts are synced as dates or as timezone-aware datetimes.

I’m not looking for a workaround, as I already have one. I’m mostly interested in understanding what data Intervals sends to Wahoo and why the synchronized workout behaves differently from the exported FIT file.

Thanks!

---

<div class="post-metadata">

**Author:** ![MedTechCD](https://forum.intervals.icu/user_avatar/forum.intervals.icu/medtechcd/32/40383_2.png) [@MedTechCD](https://forum.intervals.icu/u/MedTechCD)\
**Post date:** [6 November 2026 12:01 UTC](https://forum.intervals.icu/t/intervals-and-wahoo-questions/133468/2 "2026-11-06T12:01:45Z")

</div>

> [@m4ri0g0](#):
>
> 1. Does the Wahoo integration send the workout in a different format than the FIT export?

For Garmin, the workout is send in a ‘scripting’ format, interpreted by the Garmin receiving API.  
Not sure for Wahoo, but I imagine it is similar.

---

<div class="post-metadata">

**Author:** ![R2Tom](https://forum.intervals.icu/user_avatar/forum.intervals.icu/r2tom/32/50144_2.png) [@R2Tom](https://forum.intervals.icu/u/R2Tom)\
**Post date:** [6 November 2026 13:00 UTC](https://forum.intervals.icu/t/intervals-and-wahoo-questions/133468/3 "2026-11-06T13:00:39Z")

</div>

> [@m4ri0g0](#):
>
> 1. Are absolute wattage targets converted to `%FTP` or zones during synchronization?

I am 99% sure that absolute wattage are sent. Usually I don’t adapt the FTP value on the wahoo device, but the correct target values are on the device.