Ronald Kelppinger played both varsity football and basketball for three seasons at Drexel. He was a two-time co-captain in basketball and played on two Middle Atlantic Southern Division Conference Championship teams in 1956 and 1957. In 1957, the Dragons advanced to the NCAA Tournament. During the 1957-58 season, Kleppinger scored 34 points in a game against Haverford which set the school single-game record at the time.
On the football field, he was part of the 1955-56 team that was 8-0. He played end for three seasons before moving to fullback, linebacker and place kicker as a senior. He was among the team scoring leaders as a junior and a senior.