In the 1982 European Championships, she placed seventh in 55.86. In 1984 she was unable to compete in the Olympics because of the Soviet led 1984 Summer Olympics boycott. In competition, her weight was 57 kilograms (126 lb) and her height was 1.68 metres (5 ft 6 in)
400m: 52.26 (1980)
400m Hurdles: 54.14 (1983).
Fesenko was Union of the Soviet Socialist Republics champion 400 meter hurdles starting in 1980. In 1983, she won titles in the 400m hurdles and as part of the Soviet 4 x 400 meter relay team at the Universiade. Later that season, at the inaugural 1983 World Championships in Athletics she won the title in 54.14, one hundredth of a second ahead of her compatriot Ana AmbrazienÄ—, who had previously set the world record at 54.02 in June of that year.