On April 2 1987
April 2-4, 1987: Stanford’s Pablo Morales surpasses Southern California’s John Naber as the most victorious individual titlist in the history of the Division I Men’s Swimming and Diving Championships, claiming his 11th championship.
Sources:
Sources: “In the Arena: The NCAA’s First Century” by Joseph N. Crowley, NCAA News and Champion magazine archives, the NCAA Media Center, and NCAA record books