Jim Ryun has the fastest mile time in a high-school only track meet.
Alan Webb, holds the high-school boy's record at 3:53.43, but this was set in 2001 at the Prefontaine Classic, which is a professional meet.
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In the 2012 London Olympics, David Rudisha ran the 800m in 1:40.91. This is the current world record.
He is absolutely huge and looks so smooth when he runs. It was an incredible run. If anyone can break the 1:40 barrier, he can. In any case, check out the video from the Olympics YouTube channel: http://www.youtube.com/watch?v=YKEOjWEzVGs
8:36.3 by Jeff Nelson (Burbank, California) on May 6, 1979 in Westwood, California.
2:01.8 by 8th grader Jean Baptiste Tooley at the 2011 CYO championships in Portland Or