Montana Marathons
12 upcoming marathons across Montana, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: marathons in Montana
Montana has 12 upcoming marathons over the next 12 months. September is the busiest month for them, with 4. Most are around West Yellowstone, Ennis, Harlowton. The next one is AIDSPIRIT USA Marathon on September 6 in Harlowton.
- Sep 20264 races
- May 20271 race
- Jun 20273 races
- Jul 20274 races
September 2026
- Sun 9/6AIDSPIRIT USA MarathonHarlowton, MT · Marathon · Half Marathon · 10K · 5K · from $35 · register ↗
- Sat 9/12Blood Sugar RumblerHelena, MT · 50 Mile · Marathon · from $20 · register ↗
- Sun 9/20Montana MarathonBillings, MT · Marathon · Half Marathon · 10K · 5K · from $30 · register ↗
- Sat 9/26Hiawatha Fall Trail RunTaft, MT · Marathon · Half Marathon · 10K · Trail · from $45 · register ↗
May 2027
- Sat 5/22Whitefish Marathon, Half Marathon & 5K Presented by Hammer NutritionWhitefish, MT · Marathon · Half Marathon · 5K · from $30 · register ↗
June 2027
- Sat 6/26Missoula Marathon Weekend of EventsMissoula, MT · 5K · 1.2 Miles · Marathon · Half Marathon · from $10 · registration closed · 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
- Sat 7/10Madison MarathonEnnis, MT · Marathon · Half Marathon · from $80 · register ↗
- Sun 7/11Big Sky MarathonEnnis, MT · Marathon · Half Marathon · from $80 · register ↗
- Sat 7/17Bob Marshall Trail RacesSeeley Lake, MT · 50K · 25K · Marathon · Half Marathon · 10K · Trail · from $45 · register ↗
- Sat 7/31Yellowstone Park Trail RacesWest Yellowstone, MT · Marathon · Half Marathon · 10K · 5K · 50K · Trail · from $45 · register ↗
Planning a race
- Boston qualifying timesthe BQ standard for every age group, and what the cutoff has really been
- Choosing a first marathonwhat to look for in a debut race, and what to avoid
More Montana: 5K Races · 10K Races · Ultras · All Montana races · Browse by state