You're running at 10 yards per second (20.45 mph), which is pretty fast for a human. Top sprinters run 100m at an average speed of about 11 yards per second.
Jose Reyes can run 6.2 seconds in the sixty yard
3.86 seconds
4.33 seconds
Devin Hester can run a 20 yard shuttle run in 4.07 seconds thats really fast
Yes you can run to fast if you run a 4.3 or lower 40 yard dash you are going to die.
4.8 seconds.
Walter Payton 40 yard dash time was 3.90 seconds.
Walter Payton 40 yard dash time was 3.90 seconds.
40 yards in 4.8 seconds.
6.82 seconds and i am 11 years old
He run on USA all american final in 1958 and that time was 10.13!
I read somewhere this he cranks out a 4.32 forty.