Marita Koch is a German former sprint track and field athlete. During her career she set 16 world records in outdoor sprints as well as 14 world records in indoor events. Her record of 47.60 in the 400 metres, set on 6 October 1985, still stands.
Koch in 1978
Koch at the 1984 East German Championships in Athletics in Erfurt, Thuringia, Germany
Koch in East Berlin, 21 August 1986
The 400 metres, or 400-meter dash, is a sprint event in track and field competitions. It has been featured in the athletics programme at the Summer Olympics since 1896 for men and since 1964 for women. On a standard outdoor running track, it is one lap around the track. Runners start in staggered positions and race in separate lanes for the entire course. In many countries, athletes previously competed in the 440-yard dash (402.336 m)—which is a quarter of a mile and was referred to as the "quarter-mile"—instead of the 400 m (437.445 yards), though this distance is now obsolete.
The closing stages of a men's 400 m race