denard robinson is not usain bolt though
Rival fans are having their lol over this Denard Robinson statement from media day:
"I've watched him run, and I'm pretty sure I can beat him in a 40-yard dash," Robinson said at Michigan's media day on Sunday. "I'd get a better start, and I could take him.
"At 60 yards, I'd be in trouble, and at 100 meters, he'd be gone, but I could get him in a 40."
But this sort of thing has come up before. Two years ago, ESPN's Adam Schefter reported that Bolt would race Titans running back Chris Johnson, who ran a 4.24 40 at the NFL draft combine. That turned out to be total fiction, but it got people thinking.
It's complicated. Most 40 times are bunk. Combine times like Johnson's are not directly comparable to track sprints since the NFL uses a system that eliminates reaction time, doesn't use starting blocks, and is on FieldTurf in cleats. Also, yards are not meters and converting between the two requires integration and stuff since 100 meter athletes are accelerating until about the 65 meter mark.
Benchmarks are available. Robinson dabbled in track early in his career, winning some dual meets in the 60-meter dash indoors:
That was a 6.81 60. When Bolt set the 100 M world record in Germany in 2009, he crossed 60 meters at 6.29 Denard would get smoked at 60 meters, but it's worth noting that he'd get smoked by less than he would in the 100, where Bolt's world record time is a full second faster than Denard's best high school effort. Bolt's second 50 meters is where he makes his money.
So what about the 40? In his world-record run, Bolt hit 40 meters at 4.64. Meters are longer than yards, so that time translates to the exact same 4.24 Johnson ran at the NFL combine, give or take tenth given the fact that 40s are not track sprints. Chris Johnson's lifetime best 60m is… 6.83*. So… plausible for Denard to be in Bolt's stratsophere?
No. Johnson's best time at 60 meters was good for third place. In a semifinal. At a regional collegiate track meet. Denard's fast. He's not Usain Bolt.
*[According to a guy on the internet. Milestat confirms the time, FWIW.]