Guts Frisbee, sometimes referred to as Guts or disc guts, is a high-speed disc game involving two, five-man teams; 15 yards apart exchanging tosses. Points are awarded for throwing it through the other team, but the receiving team must catch it single-handed and gets a point on wild throws. The game is played to 21 points with a margin of 2.

Guts Frisbee has its roots in Ann Arbor, Michigan as a backyard family yard game in 1958 by brothers Boots and Jake Healy who initially threw around an old “Plutto Platter,” a disc produced by the company Wham-O who bought the rights in 1957. The brothers brought their homemade sport to their family Fourth of July picnic in Escanaba. In August of that year they played a game up in Eagle Harbor, Michigan and called it “Guts Frisbee.” An Escanaba squad was established and started playing in Calumet, Michigan before it began to spread to other places throughout the Upper Peninsula. The game started as a small, regional sport, but started seeing growth in the late 1960s with the establishment of the International Frisbee Tournament (IFT) by the late 60s, early 70s. Julius T. Nachazel, Michigan Technological University professor, attended in 1969 and established the “Guts Cup,” awarded annually at the IFT. Nachazel’s original cup was a large tomato juice can on top of a smaller can with iron handles and can lid base. The smaller can contained a rattle and the larger one included the inscription “Parole Heimath.”

The International Frisbee and USA Guts Hall of Fame was established as early as 1978 by Wham-O and the Keweenaw Chamber of Commerce. The hall was established in the Houghton County Memorial Museum in Lake Linden in 1994. Growing interest in Calumet resulted in the hall moving to the second floor of the Calumet Colosseum in Calumet, Michigan.