Marita Koch

At the Moscow Olympics of 1980 Koch won the gold medal in the 400 m. Three weeks before the 1984 Olympic Games, she equaled her own record, but the East German boycott prevented her from competing in the games. She also won the European Championships at 400 m in 1978, 1982 and 1986. She remained the European record holder for the 200 m until 28 August 2015 when Dafne Schippers won the 200 m final at the 2015 World Championships with a time of 21.63 seconds. As a member of East Germany's relay teams, Koch also set more world records. They set new world records in the 4 × 100 m in 1979 and 1983. The same team won silver in the 4 × 400 m relay in the 1980 Olympic Games. They also set world records over the same distance in 1980, 1982 and 1984. In October 1986, she was awarded a Star of People's Friendship in gold (second class) for her sporting success.

Koch's achievements, along with the performances of many other East German female athletes, have long been under suspicion that they were achieved with the aid of performance-enhancing drugs. These drugs were and remain illegal, but were not detectable at the time. In 1991, German anti-drug activists Brigitte Berendonk and Werner Franke, were able to save several doctoral theses and other documents written by scientists working for the East German drug research programme. The documents list the dosage and timetables for the administration of anabolic steroids to many athletes of the former DDR, with one of them being Marita Koch. According to the sources, Koch did use the anabolic steroid Oral-Turinabol (4-Chlorodehydromethyltestosterone) from 1981 to 1984 with dosages ranging from 530 to 1460 mg/year.

Koch retired from running in 1987 as one of Germany's most successful athletes. She had suffered from an Achilles tendon injury and wanted to focus on family life. She and Meier own a sports goods store in Rostock.

On 6 October 1985 at the year's World Cup meet, Koch set the current 400 m world record of 47.60 seconds. That time is considered far out of reach of even the best of today's athletes. The meet was held at Bruce Stadium in Canberra, Australia, which is at 605 metres altitude. The world record 400 m run had been well planned, and her basic speed and speed endurance proven in several training runs in the weeks prior. One week prior to her 400 m world record run, anecdotal reports suggest that Koch had run the 200 m in 21.56 seconds (fully automatic time). This 200 m performance was never verified by the IAAF and remains unofficial.

In a 400 m race, the only women to have broken the 48-second barrier are Koch and Jarmila Kratochvílová (47.99 seconds, Helsinki, 1983). Kratochvílová was Koch's main rival over the distance and also a 400 m world record holder in the early 1980s. Each of them repeatedly beat the 400 m world record set by the other.

Koch ran a 400 m quarterfinal at the 1976 Summer Olympics in Montreal (51.87 seconds), but withdrew due to injury. She set her first world record in 1977 in Milan, when she ran a 400 m indoors in 51.8 seconds. The following year, she set her first outdoor record at 400 m in 49.19 seconds. She topped this with another two world records within a month. In 1979 Koch became the first woman to run a 200 m in under 22 seconds. Her time of 21.71 seconds (wind +0.7 m/s) set at Karl Marx Stadt stood as the world record for nine years. She tied her own 200 m world record in 1984 (21.71 seconds +0.3 m/s Potsdam). However, her 200 m world record was equaled twice in 1986 by Heike Drechsler. One of Drechsler's 21.71 second 200 m performances was achieved into a headwind whereas both of Koch's performances of 21.71 had a tailwind.

Marita Koch (later Meier-Koch, born 18 February 1957) is a German former sprint track and field athlete. During her career she collected sixteen world records in outdoor sprints as well as fourteen world records in indoor events. Her record of 47.60 in the 400 metres, set on 6 October 1985, still stands.