The 400 meter race is
considered to be the longest sprint distance though it requires
a degree of endurance. The 400 meter competition is run
with a staggered start and is exactly one lap. Michael
Johnson still holds the men's world record at 400 meters with a
time of 43.18 seconds while the women's 400 meter world record
is held by Marita Koch with a time of 47.60
seconds.
Michael Johnson's 1996 Olympic 400 meter
final
Michael Johnson's 1999 World Championship
400 meter world record in 43.18
Jeremy Wariner runs a personal
best 43.45 400 meters
