I ran against this guy in middle school and high school. In middle school he was a stud, ran a sub 5 minute mile, although he was 15 in eighth grade. High school he was pretty good, but kind of fizzled out and never raced well in big races.
By the time he got to college at Cornell I believe, he sucked. Barely broke 4 min for the 1500, and he was a 4:15 miler in HS.