TSS Difference between Wahoo and Training Peaks

supermurph09

On every ride I do the TSS in my Wahoo BOLT is always higher than what is shown on training peaks.

131 vs 120 tonight, that is typical.

TP and Element App all show the same FTP.

Any ideas why?

Alex_Simmons/RST

They calculate it differently and/or the input assumptions are not the same.

Are they using same FTP setting?
What does each report for Normalized Power?
How are they handling breaks in the data stream?

supermurph09

Wahoo 239 / TP 235 NP

IF 0.82 / 0.78

Alex_Simmons/RST

Supermurph09 wrote:

Wahoo 239 / TP 235 NP

IF 0.82 / 0.78

239 / 0.82 = 291
235 / 0.78 = 301

Given NP is pretty close, it looks like a different FTP setting to me.

supermurph09

I think that’s the conflict but wherever I look they are the same. I’ll do more digging.

bristolpete

I had the same issues.

Make sure power figures and HR zone differentials are the same on both formats. Problem solved for me.

supermurph09

bristolpete wrote:

I had the same issues.

Make sure power figures and HR zone differentials are the same on both formats. Problem solved for me.

I don't use a HRM so no issue there, I have re-saved the FTP on the app (TP and Wahoo) and in training peaks, I'll see what happens later.

roubaixmb

I had similar until I realised that my TP FTP wasn't what I thought it was. In TP settings there is a default power threshold value and a bike power threshold value. One (I can't remember was out) so I adjusted it to match FTP in all other apps I use and things aligned after that - still get the odd discrepancy of 1 or 2 but that's down to different methods of calculating TSS across the apps (I presume).