AutomaticJack wrote:
NP was 222.
I see everyone's explanation of how this "could" happen but all those special sets of circumstances required to get a screwy result should be nearly impossible to replicate outside. The most likely reason is the sampling frequency is set too course on the 735. My 520 over the same course and a similar effort give more believable results. Last time out my average power was 200 and the 20 minute average was 211 using the 520.
Even in Cat 3 races where there are bust of near 4 digit power followed by periods of 2 digit power the 520 still never produces this type of mismatch. In some of those races I've had NP read almost 1.5 times average power.
You'd have to look at the power file to confirm. All it really takes for that type of mismatch to take place is for the hard efforts to be just over 20 mins apart.
Swimming Workout of the Day: Favourite Swim Sets: 2020 National Masters Champion - M50-54 - 50m Butterfly