How fast do you sprint

[2ofEverything]

On all fours I hit about 40

[Jc8804]

Used to run the 100 in 10.43 back in hs.the guysni would lose to in track were at long beach poly in LA. .i would push them.

40 yds i used to run a 4.63

I always felt i was quicker then fast.

When i got to college i got faster at my 40 running a 4.58
But my 100 went down to a 10.65

Maybe my mass .