The Oakland men’s club ice hockey team won the American Collegiate Hockey Association’s Division 2 national championship in 2004, was national runner-up in 2005, and in 2006 again won the Division 2 championship. The team moved up to ACHA Division 1 for the 2006–07 season and won the national championship over Penn State University by a score of 5–1. The Grizzlies currently compete in the Great Lakes Collegiate Hockey League conference.