As a true sprinter, Tatyana Sidorova made her first international appearance at the Olympic Games, before finally debuting at the World All-around Championships in 1970, finishing in 15th place. She also took part in the first ISU Sprint Championships in 1970, where she finished in a disappointing 12th place. In her two Olympic appearances, Sidorova was more successful in 1964, when she won the bronze medal in the 500 behind her teammates Lidiya Skoblikova and Irina Yegorova. In her second Olympic appearance in 1968, she was ninth in the 500. Sidorova set three World Records, all at 500 metres – in 1968 at Davos and twice in 1970 at Medeo. Domestically Sidorova won one bronze at the Soviet All-around Championships in 1968 and won three Soviet distance titles, twice at 500 m (1968, 1970) and once at 1,000 m (1966).
Personal Bests: 500 – 42.8 (1973); 1000 – 1:29.9 (1970); 1500 – 2:21.8 (1970); 3000 – 5:08.1 (1970).