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Notes
Mostly about reading training data properly: what averages hide, which numbers actually predict something, and what changes when you can see every stroke.
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How to read a power-per-stroke chart
A stroke-by-stroke power chart shows four things a split table cannot: the settle, the drift, the collapse and the scatter. Here is what each one looks like and what it means.
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Your 500m PB is not predicting your 5k
Top-end power and the ability to hold it are different qualities. Fade — the drop from the first half of a piece to the second — explains more about a 5k result than a personal best does.