http://www.newyorker.com/news/sporting-scene/how-fast-would-usain-bolt-run-the-mile
There is quite a debate going on about how fast Usain Bolt could run a mile. We know he is the fastest man in the world, but how long would he be able to keep up his speed?
I personally think that he couldn't break 5 minutes without some middle distance training, he would run nearer 6 minutes today. A 5 minute mile is seen as easy by young high school athletes, but many a long distance runner can't manage it, and I think a sprinter would fade very badly in the last 400m.
What do you think?