Bolt has run 45.28s for 400m.
usain bolt!
Harry 'Butch' Reynolds
Yes, his best time is 45.28 set in 2007.
43.18, set at the 1999 Seville world championships by Michael Johnson.
i did in 15 minutes
4.24 By Chris Johnson. This is the fastest most accurate time.
4.40
2:54.20 by USA in 1998
100m or 400m
10000 minutes
The fastest men's time recorded at London was run in 2011 by Emmanuel Mutai in a time of 2:04:40.