O'Quinn was a three-time All-American, where he was a two-time selection on pommel horse (6th) and parallel bars (5th) in his junior year. He repeated as an All-American on pommel horse (5th) during his senior year. Served as a team captain in 1958, leading Army to an 11-0 mark, including a first-place finish at the Eastern Championships. Army compiled a 26-1 mark during his career, going undefeated in 1956 (8-0) and 1958, defeating Navy all three years. Also helped Army capture the Eastern championship in 1956 as well.
