Personal record charts - should it be decreasing?

Hi all,

Just a quick check if I misunderstood something, but by my understanding, the PR chart should show a decline as my best power I held for 2 mins is definitely also AT LEAST my best power for 1 min 30 seconds etc. I didn’t really look for it, but just happen to come across 2 examples:

Example 1:

Example 2:
Screenshot 2020-04-11 at 7.56.35 PM

Am I misunderstanding something or is this a bug?


If every point on the curve was taken from a max effort then you would expect it to fall as the duration increases.

However, not all of your PRs are a true best effort for that time.

For example, imagine you did
1min at 300w
1min at 100w
1min at 300w
Your best 1min power = 300w
Your best 2min power = 200w
Your best 3min power = 233w

Over time if you do enough hard efforts of different durations the PR curve should approach the shape you would expect it to take.


1 Like

Indeed the screenshots shown were taken from single rides and I just didn’t think it through properly. This is a very clear explanation - thanks much!