Farah was 13 seconds, in spikes from a gun and blocks, all-out. I have always had my doubts about the timing of that race because of a huge boxer or something who went something like 11.3 or faster. No way that was possible. The times were made better for publicity reasons.
Farah was probably 13.5, which is great. Kawauchi at 13.9 makes sense, because he has never needed to develop any sort of kick.
Why people on here try to make sprints sound easy is beyond me. Those guys are really fast! In school I used to do some accelerations with them while warming up, they would clap for the start. I would hear the clap, look up, and they were already ten meters down the track!
There is a SG thread somewhere where he goes into detail about the timing, they never said how they timed it or who operated the timing system. The only thing I remember is that he challenged everyone to get in a 100m race and see what they could actually do.
So I did it! With a good tailwind I went 13.63, FAT, in spikes. And I'm in good shape, 5 years out of college. A bunch of super-young kids beat me.
I'm pretty sure sprinters and born and not made. My performances really improved with training, but I don't know if the same is true for sprinters. I doubt it.
Anyway, there's no zen to sprinting either. They can have it.