Boris Onishchenko Boris Onishchenko Boris Grigoryevich Onishchenko (Борис Григорьевич Онищенко; also transliterated as Onyshchenko, Onishenko, Onischenko; born 19 September 1937) is a former Soviet modern pentathlete who competed at the 1968, 1972 and 1976 Summer Olympics. He was a multiple Olympic and world champion, but was disqualified for cheating at the 1976 Summer Olympics and banned for life from sports. Having already earned his country an Olympic medal earlier in Mexico City and Munich, Onishchenko entered the event as a three-time world champion. After the first event of the pentathlon, the Soviet team found itself in fourth place, trailing closely behind Britain.
Doping at the Olympic Games The silver medalist Anita Włodarczyk of Poland would likely take the gold medal in her place. On 18 October 2016, the IOC disqualified Apti Aukhadov of the Russian Federation for doping and stripped him of the silver medal. The IOC requested the IWF to modify the results of this event accordingly; it has not yet published modified results. On 18 October 2016, the IOC reported that Maksym Mazuryk of Ukraine, who competed in the Men’s Pole Vault event, was disqualified from the 2012 London Games, in which he ranked 18th. Re-analysis of Mazuryk’s samples resulted in a positive test for