I would bet my entire college tuition on Bolt. If he couldn't beat him in a 100 yard race without pads, what makes you think that he could beat him with pads on?
Reggie Bush is fast, and he is quick, which translates into great football speed. But if you are talking about a 100 yard race... quickness doesn't matter.
Just watch and keep in mind that these are the fastest people in the world:
http://www.youtube.com/watch?v=io8t2CHGNb4
Keep in mind, I'm not a track guy. However, I am logical. To claim that ANYONE on ANY football field is as fast as Usain Bolt is just silly. What this has to do with Madden... who knows?