Petra Thümer

Petra Thümer, later known as Petra Deckert and then Petra Katzur, is a former swimmer from East Germany, born on 29 January 1961. She won gold medals in the 400 metre and 800 metre freestyle at the 1976 Summer Olympics and again at the 1977 European Aquatics Championships, and over her career she set five world records at those two distances. She was inducted into the International Swimming Hall of Fame in 1987. She later admitted that she had used performance-enhancing drugs as part of the East German training system, and her coaches kept her out of the 1978 World Championships because they feared she would fail a doping test, giving injury as the official reason. She retired in 1979 and worked as a photographer, and she married the Olympic swimmer Klaus Katzur, having earlier been married to the cross-country skier Alf-Gerd Deckert.