CP is higher without single max effort than with and all time CP is lower than recent best CP

My CP is higher using both CP power models without the single max effort than it is with the single max effort and all time CP is lower than recent best CP. That seems rather odd

Intervals.icu attempts to pick good max efforts from your power curve for the calculation and it doesn’t always get that right. You can use the “Define Curve” button to enter your own points (e.g. 3m and 12m) for a more reproducible result:

I prefer intervals.icu"s picks as it results in a higher CP

What about my all time CP being lower tha my current CP

The all time one is looking at different data (your all time curve) and has picked different time points that result in a lower CP. That is a consequence of Intervals.icu attempting to selected “good” points for the calculation. I should probably add a simple option to this to define 3 time points and use them for all the curves instead of auto detecting for each curve.

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