Boris Gurevich, who competed exclusively in freestyle, took up wrestling in 1953 and was selected for the Soviet national team in 1960. Gurevich made his international début at the 1961 World Championships, where he won silver in the light-heavyweight division. Gurevich also competed at the 1962 World Championships, where he was fourth in the middleweight category but, due to fierce competition inside the Soviet national team, his next international appearance was at the 1967 European Championships, where he won gold as a middleweight.
Gurevich also won the 1967 World middleweight title and went to the 1968 Olympics as a favorite for the freestyle middleweight title. He did not disappoint at the Olympics, capturing the gold medal, and also won gold at the 1969 World Championships. Gurevich last competed internationally at the 1970 European Championships, where he also won middleweight gold. Domestically, Gurevich won six Soviet titles: in light-heavyweight in 1957-58 and 1961 and in middleweight in 1965-67. After the fall of the Soviet Union, Gurevich emigrated to the United States, living in Chicago.