I do though, and I did last season.
last season 60m started off at 7.68, ended off with 7.49.
100m started with 11.84, ended with 11.30 (both runs had 0 wind)
This season started off at 7.46, it’s been my only race thus far and I feel I was easily 1 tenth faster if i hadnt squatted 3 days before, been more fresh, better start, etc.