Difference in TSS

[panos]

Hello

I have noticed a difference in the TSS that this plugin calculates, to TSS that Garmin Connect and Training Peaks calculate.
GC & TP show the same TSS (ie 38.9 / 49.8 / 36.2), but TL values are not even close (72 / 92 / 67).

Why is there such a difference ?

[texmurphy]

Are you using the same FTP over the same time period?

[panos]

Are you using the same FTP over the same time period?

Yes. The 3 rides' tss i have mentioned, are from the same day.
The only place to set FTP is in the training analysis plugin.
The power zones in sporttracks in general and in training analysis plugin are the same.

[texmurphy]

Training Analysis allows you to set a Threshold power value in Athlete.
Training load has a Custom Data Field labeled FTPcycle in Athlete. You can also say FTP=xxx in Athlete to set this.
I believe that Training Analysis will take the FTPcycle value if Threshold power is empty.
For my rides, I find TA and TL vary by around 10 for TSS

[panos]

Training Analysis allows you to set a Threshold power value in Athlete.
Training load has a Custom Data Field labeled FTPcycle in Athlete. You can also say FTP=xxx in Athlete to set this.
I believe that Training Analysis will take the FTPcycle value if Threshold power is empty.
For my rides, I find TA and TL vary by around 10 for TSS

I haven't set any values in the "Custom Data Field labeled FTPcycle in Athlete",
I did that, recalculate and now the TL values for the three rides are 39/50/36.
The values at TP and GC were 38.9/49.8/36.2, so i think i am fine.

Thanks