Usain Bolt's current 4o yard dash time is 3.97.
Eli Manning's 40-yard dash time is 4.92.
40 yard dash/10 yard dash= 4 What ever the time you got for the ten yard, you multiple it by 4. It could be an average of your running time per 10 yard dash. Sometimes for several runners, they would feel worn out by the time when reaching the 40 yard mark.
He ran a 40 yard dash in the 4.5s
Jake Plummer's 40 yard dash time is 4.76 seconds. He is in the Air Force.
His time at the combine prior to his rookie season was a 4.64 seconds 40 yard dash.
A 10 yard dash time is really not a good judge of your speed, the distance is too short. A 40 yard dash is what you need to get a good estimate of your abilities. but I'll give you time for both 40 yard dash-between 5-5.8 seconds 10 yard dash-between 1.3-1.5 seconds
Mathematically calculated Rose' 40 yard time is 4.48.This was calculated by taken Chris Johnson's 20 yard time and Derrick Rose' 20 yard time of 2.65 in which i got from http://www.muscleprodigy.com/derrick-rose-workout-arcl-1189.html and subtracting the two times and I accumulated 0.24 I added 0.24 to Chris Johnson's 40-yard time and that equaled 4.48.
You can't. It would be like extrapolating a marathon time from a mile time.
the time took for the 20 yard dash ( run )