I know this is amid-d and distance site but i'm surprised there isn't more talk about Tyson Gay.
His 10.00 into a 1.5 m/s wind equates to 9.90. Meanwhile, Yohan Blake's 9.90 with a .5 m/s behind him equates to a 9.93.
So Gay could have beaten the world champ if they had raced.
The key is just staying healthy.