Originally Posted by
f4rrest
Hey guys, I'm a PM noob and just got a stages and use it with Strava and Golden Cheetah. I'm having a bit of trouble picking the right value for FTP.
In Golden Cheetah, the CP curve at 20min has one value (371) but the "best" value is 354. The CP at 1hr is 364 and the best is 322.
Strava, on the other hand estimates FTP using their power curve at 369.
Any ideas which value I should actually use as the basis for setting training zones?
Pretty sure the "best" values you are seeing are numbers that you have actually hit for those times. So - if you actually hit 322 for an hour... and a best 354 for 20 minutes.... I would say taking .95 of your 20 (as has been suggested).... would get you pretty dang close. Maybe 335-340ish.
I would suggest trying to confirm the 20 minute number by doing a test for that timeframe and see where you land.