This might be complicated. I’d like to see a system, like you have with power, that notifies you when you’ve done your best time for a certain distance (e.g, 5K) this season, but do it for all the standard running distances. The same for rowing but for the standard rowing distances. Rowing also has distance/time for a small number of standard times.
I have this on the todo list already. I am currently planning to a pace vs distance curve (like power duration curve) with “best efforts” like for the PDC but best time for distance. Hope that makes sense.
I had thought of suggesting that, but I didn’t know how hard it would be. I suppose you already do it for heart rate and power (the cumulative chart you use for heart rate might also work for pace; just a thought).