I think you may be refering to the 60 meter dash. Maurice Greene holds the record with a time of 6.39 seconds.
Here is a video of his 60 meter dash: http://www.YouTube.com/watch?v=aU3yxIlcmhY
Chris Johnson
Reggie Bush. 4.32
4.24 By Chris Johnson. This is the fastest most accurate time.
Bo Jackson ran a 4.12 but it was not electronically timed and therfore could not be verified. Chris Johnson ran a 4.24 at the NFL Combine: The fastest electronically timed 40 yard dash.
bo jackson hes not on the 40 yard dash list but he ran it in 4.12 seconds and im not even joking.
Zack Dehler from St. Joseph, Minnesota ran it in 3.9670
EMMITT SMITH ONLY RAN A 4.8 IN HIS 40 YARD DASH AT HIS COLLEGE COMBINE....BUT IS STILL THE GREATEST RUNNING BACK ALIVE
Hall ran a 4.15 second 40 yard dash indoors and a 4.37 outdoors while in school at Virginia Tech.
Ted Ginn Jr. , he plays for the Miami Dolphins and ran a 4.06 40 yard dash.
The 440 yard dash world record is held by Lee Evans, who set the record in 1968 with a time of 44.0 seconds.
It has to be Chris Johnson, he ran the fastest recorded 40 yard dash in the history of the NFL combine i think it was 4.24 but i know for sure dominique rodgers-cromartie ran 4.29Tyreek Hill is the fastest NFL
I ran a 4.98 40 so i don’t know if that’s the record