Montana Ultramarathons
18 upcoming ultras across Montana, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: ultras in Montana
Montana has 18 upcoming ultras over the next 12 months. September is the busiest month for them, with 5. Most are around Helena, Butte, West Yellowstone. The next one is The Rut Mountain Runs on September 11 in Big Sky.
- Sep 20265 races
- Oct 20264 races
- Jun 20275 races
- Jul 20274 races
September 2026
- Fri 9/11The Rut Mountain RunsBig Sky, MT · 50.6 Miles · 30.3 Miles · 17.8 Miles · Half Marathon · 2.5 Miles · Trail · from $70 · register ↗
- Sat 9/12Blood Sugar RumblerHelena, MT · 50 Mile · Marathon · from $20 · register ↗
- Sat 9/19Dinged to Blads Trail RunsHelena, MT · 50K · 25K · 14K · Trail · register ↗
- Sat 9/26Golden Gravel GrinderVirginia City, MT · 85 Miles · 40 Miles · Half Marathon · from $60 · register ↗
- Sat 9/26Montana MeltdownBozeman, MT · 24 Hour · 12 Hour · 4 Hour · register ↗
October 2026
- Sat 10/3Whitefish Trail BlazerWhitefish, MT · 50K · Half Marathon · 6.8 Miles · 3.4 Miles · 2 Mile · Trail · from $10 · register ↗
- Sun 10/4Wolf Creek Canyon RelayWolf Creek, MT · 28 Miles · from $40 · register ↗
- Sat 10/10Le Grizz Ultramarathon & RelayPolebridge, MT · 50 Mile · 15K · 5K · from $35 · register ↗
- Sun 10/18CITY TO SKY TRAIL RACESMissoula, MT · 33 Miles · 17 Miles · Trail · from $145 · register ↗
June 2027
- Sun 6/6Hiawatha Spring Trail RunTaft, MT · 50K · 25K · 15K · 10K · Trail · from $45 · register ↗
- Fri 6/25Copper Kings 100Butte, MT · 100 Mile · register ↗
- Fri 6/25ROO Race SeriesClancy, MT · 50K · 25K · 10K · Timed · register ↗
- Sat 6/26Montana Trail SeriesWest Yellowstone, MT · Marathon · Half Marathon · 50K · 25K · 10K · Trail · from $45 · register ↗
- Sat 6/26Yellowstone Park Trail RacesWest Yellowstone, MT · Marathon · Half Marathon · 50K · 25K · 10K · Trail · from $45 · register ↗
July 2027
- Fri 7/9175-mile Pioneer Crossings Relay RaceTwin Bridges to Virginia City, MT · 175 Miles · from $110 · register ↗
- Sat 7/17Bob Marshall Trail RacesSeeley Lake, MT · 50K · 25K · Marathon · Half Marathon · 10K · Trail · from $45 · register ↗
- Sat 7/17Butte 100 MTB RaceButte, MT · 104.1 Miles · 54.6 Miles · 29.6 Miles · from $100 · registration closed · register ↗
- Sat 7/31Yellowstone Park Trail RacesWest Yellowstone, MT · Marathon · Half Marathon · 10K · 5K · 50K · Trail · from $45 · register ↗
Planning a race
- The adventure listrim to rim, the big rounds, and routes worth planning a year around
- Getting inhow entry works for the races that sell out or ballot
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