My ride data is never the same across platforms (e.g., Strava, Garmin Connect, Training Peaks). The ride elevation, distance, average speed, etc. is always close but never the same. I’ve always attributed that to the GPS file and how the platforms parse the data. Why does TSS vary across platforms?
A TrainerRoad workout I did today (Whorl) shows a TSS of 45 in Training Peaks and 49 in TrainerRoad. The TSS is never the same across the platforms.
I understand TSS is an estimate of training stress but shouldn’t the estimated results be the same regardless of platform? Isn’t the TSS calculation a standard calculation?
UPDATE: Subsequent reading in this forum and in Training Peaks suggests that there is more than one TSS calculation and that the data I provide for the calculation (e.g., Max HR, RHR, LT, etc.) determines the TSS. What is Trainer Road basing it’s TSS calculation on? The only information I’ve been asked for is weight and FTP.