 In his final season with the Knights in 1977-78, Marsh scored eight goals and 63 points in 62 games, while leading the club with 192 penalty minutes, helping London finish in first place in the Emms Division.In the post-season, Marsh scored two goals and 12 points in 11 games, as the team lost in the OMJHL semi-finals.Marsh won the Max Kaminsky Trophy which is awarded to the best defenseman in the OMJHL.