Sergei Zabolotnov

Zenit, Trud (1981–1982)
SKA (1983)

Dynamo (1984–1990) Medal record
Competitor for Soviet Union
Olympic Games
Bronze 1988 Seoul 4×100 m medley
World Championships
Bronze 1986 Madrid 100 m backstroke
European Championships
Gold 1983 Rome 200 m backstroke
Gold 1987 Strasbourg 100 m backstroke
Gold 1987 Strasbourg 200 m backstroke
Gold 1989 Bonn 4×100 m medley
Silver 1985 Sofia 200 m backstroke
Silver 1989 Bonn 100 m backstroke
Bronze 1983 Rome 100 m backstroke
Bronze 1985 Sofia 100 m backstroke
Friendship Games
Gold 1984 Moscow 100 m backstroke

Sergei Valentinovich Zabolotnov (also Sergey, Russian: Сергей Валентинович Заболотнов; born 11 August 1963, is a former backstroke swimmer from the USSR. In 1983, he set a European record in the 200 m backstroke. The time of 2:00.42 was achieved on 4 July 1983 at Edmonton, Canada, when winning a gold medal whilst competing in the World University Games. He set his second European record on 15 February 1984, recording 2:00.39 at the Soviet Winter Nationals.

After missing the 1984 Summer Olympic Games in Los Angeles of late July and early August due to the eastern bloc boycott, Zabolotnov competed at the Friendship Games in Moscow, USSR, winning the gold medal for the 200 m backstroke in a world record time of 1:58.41 on 21 August 1984. This time eclipsed the previous world record of 1:58.86 set by Rick Carey, USA on 27 June 1984 at the USA Olympic Swimming Trials. Rick Carey won the gold medal for the 200 m backstroke in Los Angeles in a time of 2:00.23, three weeks before Zabolotnov's world record swim. Carey recorded 1:58.99 in the preliminaries in Los Angeles for an Olympic record.

Zabolotnov competed at the 1988 Summer Olympic Games in Seoul, South Korea, in both the 100 and 200 m backstroke, finishing fourth in each. His time in the 100 m backstroke was 55.37. His time in the 200 m backstroke was 2:00.52. He competed in the preliminaries of the 4×100 m medley relay only, but earned a bronze medal when the Soviet team finished behind the United States and Canadian teams in the final.