Montana Ultramarathons
25 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 25 upcoming ultras over the next 12 months. Among complete calendar months, June 2027 has the most listed races, with 7. Most are around Bozeman, Butte, Missoula. The next one is Badwax 500 on November 27 in Missoula.
- Nov 20261 race
- Feb 20273 races
- Apr 20271 race
- Jun 20277 races
- Jul 20276 races
- Aug 20272 races
- Sep 20273 races
- Oct 20272 races
November 2026
- Fri 11/27Badwax 500Missoula, MT · 100+ Mile · register ↗
February 2027
- Fri 2/12Running Up for Air | Mt SentinelMissoula, MT · 24 Hour · 12 Hour · 6 Hour · 3 Hour · from $75 · register ↗
- Sat 2/13SkyloppetBozeman, MT · 50K · 25K · 10K · 5K · 20K · from $30 · register ↗
- Sat 2/20Running Up for Air | BozemanBozeman, MT · 12 Hour · 6 Hour · 3 Hour · from $75 · register ↗
April 2027
- Sat 4/17Bitterroot Runoff Trail RunsLolo, MT · 5K · 5 Miles · 10 Mile · 50K · 0.5 Miles · Trail · from $35 · registration closed · register ↗
June 2027
- Sun 6/6Hiawatha Spring Trail RunTaft, MT · 50K · 25K · 15K · 10K · Trail · from $45 · register ↗
- Sat 6/12Old GabeBozeman, MT · 50K · 30K · register ↗
- Fri 6/18Moonlight on Mt Ascension Trail RunHelena, MT · 12 Hour · Trail · 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 ↗
- Sun 7/11Big Sky MarathonEnnis, MT · Marathon · Half Marathon · 50K · from $80 · register ↗
- Sat 7/17Bob Marshall Trail RacesSeeley Lake, MT · 50K · 25K · Marathon · Half Marathon · 10K · Trail · from $55 · register ↗
- Sat 7/17Butte 100 MTB RaceButte, MT · 103.5 Miles · 54.6 Miles · 29.6 Miles · 104.1 Miles · from $100 · registration closed · register ↗
- Fri 7/30Crazy Mountain 100Lennep, MT · 100 Mile · Trail · register ↗
- Sat 7/31Yellowstone Park Trail RacesWest Yellowstone, MT · Marathon · Half Marathon · 10K · 5K · 50K · Trail · from $45 · register ↗
August 2027
- Sat 8/7HURL ElkhornHelena, MT · 50 Mile · 50K · Half Marathon · register ↗
- Fri 8/27BIG SKY BIGGIEBig Sky, MT · 50 Mile · 30 Miles · 15 Miles · 1 Mile · from $65 · registration closed · register ↗
September 2027
- Fri 9/10The Rut Mountain RunsBig Sky, MT · 50.6 Miles · 30.3 Miles · 17.8 Miles · Half Marathon · 2.5 Miles · Trail · from $75 · registration closed · register ↗
- Sat 9/25Montana MeltdownBozeman, MT · 24 Hour · 12 Hour · 4 Hour · register ↗
- Sat 9/25The Divide Trail RaceButte, MT · 50K · 25K · Marathon · Half Marathon · 10K · Trail · from $45 · register ↗
October 2027
- Sun 10/3Wolf Creek Canyon RelayWolf Creek, MT · 28 Miles · from $40 · registration closed · register ↗
- Sat 10/9Le Grizz Ultramarathon & RelayPolebridge, MT · 50 Mile · 15K · 5K · from $35 · registration closed · 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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