Oleg Denishchik (; born 10 November 1969) is a retired triple jumper who represented the USSR and later Belarus. His personal best jump was 17.53 metres, achieved in July 1991 in Kyiv. He twice competed at the World Championships in Athletics, reaching the final on both occasions. He was a one-time national champion at the Belarusian Athletics Championships, winning the men's triple jump in 1993.Belarus Championships. GBR Athletics. Retrieved 2019-07-20. He was runner-up at the 1991 Soviet Athletics Championships.Спартакиада народов СССР и чемпионат СССР // Лёгкая атлетика : журнал. — 1991. — № 9. — С. 4—5.
International competitions 1991World Championships Tokyo, Japan 10th16.61 m1993World Championships Stuttgart, Germany 13th16.61 m
National titles Belarusian Athletics Championships Triple jump: 1993
References