Non motorised mult-day events containing only one sport.
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- Arrowhead 135 Mile Winter Ultra Marathon Bike, run or ski 135 miles in extreme winter from "Frostbite Falls" on the Canadian border across the Arrowhead Region of Minnesota, USA.
- Alaska Ultra Sport The Iditarod Trail Invitational is the world's longest, least supported winter ultramarathon for cyclists, skiers and runners (350 and 1100 miles). The Race is held on the historic Iditarod Trail in Alaska.
- Royal LePage Comox Valley Snow to Surf Relay Adventure Canadian winter sports adventure race held annually during April.