I analysed the competition that took place and was watching the 100m and recorded to get a time and the winner got 3.65 seconds to 30m, which is ridiculous and 4.65 seconds in the 40m.
But got 11.3 seconds at the end. Interesting how you can get a quick time in the short distance but then it just fades towards the end.
You would think the genetics is in the fast twitch muscle fiber during the drive phase but also genetics in the endurance towards the end.
just thinking out loud to myself
if those were the 100m splits as produced by the electronic timing, then it could be injury.
that looks like a pretty fast 60m to me. if you're able to hit a good 60m, you don't fall off that bad.
so could be a timing error like Joe said, or injury etc.
genetics & training definitely come into play. some people can extend out their ATP-PC system just a tad bit longer, some can maintain that top speed they reached at 60m longer (with good speed endurance/relaxation/mechanics) & a better developed anaerobic-glycolysis energy system. i imagine you'd see 200m-100m guys with much better speed endurance than 60m-100m guys, but it's hard to find 200m guys with ATP-PC systems/power on the level of 60m-100m guys.
Bolt was dominant in 100m & 200m, his explosiveness & speed endurance was psychotic. I imagine he'd get toasted in 60m races though, ie someone like Christian Coleman would smoke him through 60m. But then Coleman can't hold that speed as long as Bolt, so Bolt smokes him over 100m. Regardless, none of them will fall off that bad unless injured/etc.
you do lots of shorter sprints in your training, so speed endurance would be a critical component if you wanted to maximize your 100m. don't even need to hit max-v either, can easily do it through submax work: buildups + float, tempo work (150's etc). that stuff can prepare you quite well (energy systems, CNS & muscle/tendon composition etc).
2cents.
pc!