Jarmila Kratochvílová

Jarmila Kratochvílová is a Czech former middle-distance runner who won the 400- and 800-metre titles at the 1983 World Championships and set the 800-metre world record.

1983 World Championships in Athletics: The inaugural World Athletics Championships, held in Helsinki in 1983. Kratochvílová won both the 400 metres and 800 metres at these championships.
400 metres: A one-lap track race that combines sprint speed with substantial speed endurance. This event was Kratochvílová's specialty before her landmark 800-metre season.
Marita Koch: An East German sprinter who set the women's 400-metre world record in 1985. Koch's 400-metre dominance framed the event Kratochvílová won at the 1983 championships.
Doping in athletics: The use of prohibited performance-enhancing substances in track and field. Questions about the era's doping practices have shaped discussion of Kratochvílová's performances; she has denied doping.
800 metres world record: The best officially ratified performance in the women's 800 metres. Kratochvílová set the women's record in Munich on 26 July 1983, and it stood for decades.
800 metres: A two-lap track race that blends middle-distance endurance with tactical positioning and sprinting. Her world record showed how strongly her sprinting ability translated to two laps.
Olga Bondarenko: A Soviet middle-distance runner who won the 800 metres at the 1988 Seoul Olympics. Bondarenko became a leading rival in the event after Kratochvílová's record-setting years.
East German sports doping system: A state-directed program that administered performance-enhancing drugs to athletes in East Germany. It is often raised in comparisons with records from the same period, though it was not Kratochvílová's national system.
Women's 400 metres world record: The best officially ratified performance in the women's 400 metres. Her 1983 championship victory came close to the world record, which Marita Koch held.
Interval training: A training method that alternates intense exercise bouts with recovery periods. Kratochvílová's training was known for high volume and repeated hard efforts.

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Barbora ŠpotákováRelated: Like Špotáková, she became a prominent Czech holder of a long-standing athletics world record.