My college athlete buddy and I recently timed our 100m dashes for fun, and after a few sprints determined my time to sit between 11.5 and 12 seconds. He claims that I am a natural sprinter and should try for our college's team, however I have no team sport/running experience whatsoever and have a miserable 1 & 2 mile time for college standards. (7:30 1 mile, 16:21 2 mile) Is this realistic? How much room do I have to grow?