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.
Equestrian at the 1976 Summer Olympics the eventing competition at the 1976 Games, see In the 1976 Summer Olympics, 135 contestants, including 111 men and 24 women, competed from 23 countries. The youngest participant was Silvia de Luna from Guatemala at 18 years old, while the oldest rider was the Australian Bill Roycroft at 61 years old. Equestrian at the 1976 Summer Olympics The equestrian events at the 1976 Summer Olympics in Montreal included show jumping, dressage and eventing. All three disciplines, except for the Nations Cup, were held at the equestrian stadium in Bromont, which had a capacity of 15,000 spectators, and the cross-country and