At the 1988 Summer Olympics in Seoul, Korea, Nesty edged American favorite Matt Biondi by one one-hundredth of a second to win the 100-metre butterfly; he finished the event in 53.00 seconds and Biondi in 53.01. Nesty is the only Olympic medal winner from Suriname and after winning his Olympic gold medal, he was unbeaten in the 100-metre butterfly event for three years. Nesty was the second black athlete to win an individual Olympic medal in swimming following Enith Brigitha at the 1976 Summer Olympics, and only the second South American swimmer to win an Olympic gold medal after Alberto Zorrilla in the 1928 Summer Olympics.