Different TSS on Garmin vs Intervals

Intervals shows a TSS of 168 while the data source from Garmin Connect (Strava also connected) shows a TSS 221, which is pretty different. Both platform are set up to the exact same FTP and I’m comparing TSS on both (not Garmin’s proprietary load).

My suspicion is that Intervals is not counting some power data when my GPS signal was too low (dense forest trail which causes GPS to trigger auto pause while moving, so I disabled auto pause mid ride).

Can I somehow fix this? I’m really confused on which one is the right one (my legs tells me Garmin is right haha)


Try to Ignore Velocity data from Actions Settings menu. Intervals will ignore pauses caused by gps failure and analyse the complete power stream.

@MedTechCD it worked. Thanks!