Scrolling through Strava and here after my race on Sunday it would be interesting to see how much power in absolute watts and w/kg the guys in the break with me had to put out, to generate some kind of efficiency score for the race or parts of the ride. I had a look at each individual but it would be interesting to see a comparison similar to the Flybys feature.
I imagine this would be quite complicated. From what I can gather from guesstimations off the Strava using Sauce, I had to put in about 0.4w/kg more in the break over the rollers and flats before the climb at the end for those 3ish hours.