Ultramarathons in Calumet
3 upcoming races. See all races in Calumet or ultramarathons worldwide.
- UP Health System Great Bear Chase - 52km ClassicMar 13, 2027 · 53 km
- UP Health System Great Bear Chase - 52km SkiathlonMar 13, 2027 · 53 km
- UP Health System Great Bear Chase - 52km FreestyleMar 13, 2027 · 53 km