Originally Posted by
achoo
Oh, yeah. To give you an idea about how accurate those are, the best NP I've done in an hour race is about 330W, but it wasn't hard. I've done NPs up around 370W for an hour.
And MY FTP is right around 300W.
So by the time you get down to
#4 , it's pretty damn inaccurate.
It's called an NP buster. See link below. If your NP from a 1h race was really 23% above FTP that makes you an extreme outlier. I suspect your FTP is set low.
Alex's Cycle Blog: You can't touch this, Part III