Is there a way to calculate the 40yd time to 100m time?
100 time from the 40 time can be done if you have an idea of the speed endurance and level of the sprinter, but 40 time from 100 is impossible with no more information. An 11.00 guy could take 3.5h and just as easily 3.9h, factor in race tactics too, etc.
Well say its for a high school soph 15y/o a 47-48. 400 runner 21. 200 runner and 10.5-8 100 meter runner.