Provide a graph for critical power across a certain time period.
Basically I'd like the same "critical power" graph that you can provide for an individual activity, applied towards my entire set of activities across a certain date range.
I know the personal records section has a table of CP1 to CP120 but the graph is a more interesting visual representation.
Also other tools like Golden Cheetah or Stryd Powercenter allow you to see hot spots on the graph based on what level you typically train at - that would be neat.
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Allan commented
Garmin Connect is doing this pretty well now -- comparing an activity against your personal best over varying time frames. But with theirs you can't determine which in which activity you had the better power... unless you run the "Full Report" which only looks at personal bests across all activities. In my case, I have a bunch of older bogus power data from when I was using a PowerTap PowerCal and had no real power meter. Garmin gives me no way to exclude this data from my personal best calculations.