So I found this photo today with the 10m splits for each of the 100m competitors (supposedly from the IAAF 2017 WC biomechanical analysis report):
What was most surprising to me about the chart was how many gold (best) splits Coleman racked up in the first half of the race. According to the chart, if you add up Coleman's 0-10, 10-20, 20-30, 30-40, 40-50, and 50-60 splits plus his reaction time, you get 6.383 seconds. Round up for FAT and you get 6.39 -- tying Mo Greene's 6.39i WR from 1998.
Normally you could attribute this to wind assistance, but in this case the race was run into a -0.8m/s headwind, so if anything I think it would make it more difficult than a no-wind indoors situation. Plus, this isn't factoring in the lean -- if Coleman was gunning for the 60m line he surely could have saved those extra .003 seconds and broken the record outright instead of just tying it.
I knew Coleman was good, but not Mo Greene good. Is this common in 100m races? Is the 60m WR just that weak? Are there any examples of faster 60m splits in 0.0 wind or worse (simulating indoor conditions)? Or are there any other variables besides wind and peaking that could make indoor 60m marks slower?