Plank played football and baseball for two seasons (1971-73) after transferring from Pasadena Community College. He played inside linebacker under Coach Jerry Scattini, who considered him “one of our top layers. Terms such as leadership, toughness, aggressiveness, dedication, determination to win, and consistently outstanding performance exemplified his play.” As a baseball pitcher, Plank set significant records which still stood in the year 1990 (when he was inducted into the hall of fame) in the Wolf pack record book, such as career earned run average (2.63) and season earned run average (1.79, 1973). He is sixth in career wins despite being a two-year player, fourth in career strikeouts, second in career complete games. He held these records despite not being in the top ten in career appearances or innings pitched.