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50K races in Idaho

The 17 50K ultramarathons in Idaho, with each one's climb, cutoff and date. Every race links to its own page, where you can see how it fits the runner you are now.

RaceDistanceWhereDateClimbCutoff
Race the Rocks – 50K Mountain Challenge50 KMAlmo, IDSep 19, 2026—11 h
Bogus 50 km Race50 KMBoise, IDSep 26, 20265,600 ft10.5 h
Legends Never Die55 KMKetchum, IDOct 3, 20267,000 ft10 h
Moscow Mountain Madness50 KMMoscow, IDOct 4, 20265,500 ft10 h
Sasquatch Shuffle50 KMMcCall, IDOct 10, 2026—10 h
Fall Creek Beast50 KMSwan Valley, IDOct 31, 20266,000 ft9 h
Wilson Creek Frozen 50K50 KMMelba, IDJan 23, 20275,600 ft11 h
Spitfire Ultra Trail Challenge55 KMMenan, IDApr 17, 20276,600 ft9 h
Weiser River Trail50 KMBoise, IDApr 24, 2027—9 h
Heavens Gate Ultra32.9 miRiggins, IDMay 1, 20272,500 ft9.5 h
Scout Mountain Ultra Trail50 KMPocatello, IDJun 5, 20277,503 ft16.5 h
Race the Wolf32.3 miSandpoint, IDJun 19, 2027—9 h
River of No Return Endurance Run 53K55 KMChallis, IDJun 19, 20279,300 ft14 h
McCall Trailrunning Classic50 KM 2023 New CourseMcCall, IDJun 26, 20276,000 ft12.5 h
Beaverhead Endurance Runs55 KMSalmon, IDJul 10, 2027—9.5 h
Owyhee 50/50 Night Run50 KMHomedale, IDJul 30, 2027—9 h
Harriman Park 50k50 KMIsland Park, IDAug 14, 20272,000 ft9 h