Montana · Marathon
Marathons in Montana
Montana currently has 11 upcoming marathons with a confirmed date listed in RaceRove. Ennis, Big Sky, Billings and Bozeman have the largest concentration of events.
June (4), July (2) and August (2) are the busiest months on the calendar right now. Another 1 annual marathon is waiting for next year's date to be announced.
- Upcoming, date confirmed
- 11
- Active listings
- 12
- Cities with races
- 11
More ways to browse Montana
Upcoming marathons in Montana
All 11 with a confirmed date, soonest first.
Dates come from each race's own listing. Always confirm on the organiser's site before you book travel.
Largest marathon events in Montana
By estimated field size across all distances at the event.
When marathons happen in Montana
- May
- 1 upcoming race
- June
- 4 upcoming races
- July
- 2 upcoming races
- August
- 2 upcoming races
- September
- 2 upcoming races
Montana cities with the most marathons
- Ennis
- 2 upcoming races
- Big Sky
- 1 upcoming race
- Billings
- 1 upcoming race
- Bozeman
- 1 upcoming race
- East Glacier Park
- 1 upcoming race
- Helena
- 1 upcoming race
- Livingston
- 1 upcoming race
- Missoula
- 1 upcoming race
Annual events awaiting their next date
These marathons are held every year, but the next date isn't in the listing yet. The month shown is when each is usually held.
-
AIDSPIRIT USA MarathonHarlowton, MT Usually held in September · next date not announcedMarathon10K5K ~13 runners
Marathons in nearby states
Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 4 min read Diplo's Run Club 2026-27: Every City, Date and Course Diplo's Run Club is a 5K with a post-race concert. Every US date for 2026-27 (San Francisco, New York, Los Angeles, San Diego and Phoenix), start times and courses.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Marathons in Montana: common questions
- How many marathons are there in Montana?
- RaceRove currently lists 11 upcoming marathons in Montana with a confirmed date, plus 1 annual event whose next date hasn't been announced yet.
- How long is a marathon?
- A marathon is 26.2 miles (42.2 kilometres).
- Which Montana cities have the most marathons?
- By upcoming events listed in RaceRove: Ennis (2), Big Sky (1), Billings (1), Bozeman (1) and East Glacier Park (1).
- When is marathon season in Montana?
- Of the upcoming marathons listed, the busiest months are June (4), July (2) and August (2).
- What is the biggest marathon in Montana?
- By estimated field size, the largest event with a marathon listed in Montana is the Missoula Marathon, with about 3,500 runners across all of its distances.
Search every marathon in Montana
Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.