Ricky Henderson, future baseball hall of famer, said he ran the 100 yd dash in 9.4 untrained. He has the MLB stolen base record at 130.
A lot of football players if they concentrate on T/F are very fast. David Gettis out of
Dorsey High has a football scholarship from Baylor. He didn't run track till 10th grade and ended up winning the state championship in the 400m 3 years in a row. He ran 45.8 last year as a HS prep.