Ivar StukolkinIvar Stukolkin is a retired Estonian swimmer. He is an Olympic champion in swimming.AchievementsBesides two Olympic medals Stukolkin won a silver medal at the 1982 World Championships. He has been Soviet Union champion once in 1978 and has won sixteen titles in Estonian SSR.RecordsStukolkin set 32 Estonian national records. His 1980 national record in 400 metre freestyle swimming 3.53,95 stood 39 years until it was broken in 2019.