It has been said consistently that Darrell Green recorded a time of 4.09 at the Washington Redskins training camp in 1986. With questions out of the way, Thursday was put up or shut-up time at the 2023 NFL Scouting Combine. Cheetah, wide receiver: Two or three seconds (record: 4.24). 1 Pick. What people tend to forget is that a 40-yard dash time of 4.5 or even 4.6 seconds is blistering fast. Running Back 40-Yard Dash Honorable Mentions. Posts: 1,408. average 40 yard and 60 yard dash times. My freshmen year I ran a 5.2 my sophomore year I ran a 5.0 my junior year I was around a 4.8 and my senior year I ran a 4.67. LSU offensive lineman P.J. What is the formula for average kinetic energy? Raheem Mostert is the fastest active NFL running back.