Off Season Continues...
40 yard dash is hand timed by Coach Ayers test Acceleration w/ 10m Fly
Here is an updated easy formula: 22.37 ÷ 10m fly time = mph
Usain Bolt (Berlin) 22.37 ÷ 0.81 = 27.6 mph
23 sec Drill How far can you run in 23 sec test Speed Endurance
Force Number is the Deadlift Max/Weight of Athlete - how much Force is an athlete able to apply to ground per mass = Speed