I took a look at the race splits from yesterday's 1500m DL race. Reyonld Cheruiyot closed really fast, but I was not aware of how fast it was until now. He's final 100m was 12.1!
That's ridiculously fast. Has anyone ever closed that fast? The one guy that comes to my mind is Sebastian Coe. When he won Gold in Moscow in 1980 his final 100m was 12.1 (Finishing time was 3:38.4, and final 400m was 52.2)
(Cheruiyot finished 4th in 3:33.42, and his final 400m was 53.0)