 Annual three-game series between long-time Michigan rivals Calumet Wolverines and the Portage Lake Pioneers.Named in honor of "Doc" Jack Gibson, the Gibson Cup was first awarded in 1939; it is the third oldest hockey trophy in the United States.An annual four-team pre-season tournament hosted by the Fond du Lac Bears, the Keevin Cup honors Kevin Ristau, a long-time club board member and ambassador.