How fast can you run 400 meters?
Surfing the web today and found that some 19 year old kid running for Florida bested Michael Johnson's world best by .06 seconds...which is a lot at that rate of speed.
FAYETTEVILLE, Ark. - Kerron Clement has struck down a world record held for a decade by one of the greats of track and field. And he's only 19. The Florida sophomore seemed as surprised as everyone else when he ran 44.57 seconds at the NCAA Indoor track and field championships Saturday night, breaking the mark of 44.63 set by Michael Johnson in 1995.