Usain Bolt set the world record for the 100-meter dash in 2009 at 9.58seconds. It is believed that he could run the 40-meter dash in less than 4 seconds.
His 5.0 40-meter dash translates to a time of 4.572 seconds in the 40-yard dash.
A 6.8 in the 60-meter dash equates to a 4.1 (4.145) in the 40-yard dash.
they don't do yards in the Olympics
11.72 100 meter time to 40 yard dash
5.23 seconds by Jesse McDonald, from dryden ont. Canada
Running the 100-meter dash in 12.7 seconds is the same as running the 40-yard dash in 4.645 seconds.
If you run a 12.3-second 100-meter, your approximate time for the 40-yard dash is 4.5 seconds.
It doesn't. The 40 yard time is simply a mark in which a sprinter is suppose to reach top speed, and can't accelerate any more. If properly trained, they should retain that top speed for the duration of the 100 meter dash. Carl Lewis basically said when he broke the world record, was that he decelerated less than every one else...thats why he wins. Also, in the 100 meter dash there is very little room for error to comeback. Leroy Burrell proved, that even with a bad start, you can make a come back to break a world record. However, in the 40 yard dash there is no room for error. In my opinion, the 40 yard dash is for football players and the 100 and 200 meter dashes are for track and field athletes. And if you really want to step it up, the 400 meter run...which is also a sprint.