Montana · Half Marathon

2027 Half Marathons in Montana

Every upcoming Half Marathon in Montana, all 17 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.

17 upcoming half marathons · 13 with finish-time stats

5K Races 5210K Races 21Marathons 9Ultramarathons 5
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By the numbers

The Biggest and Longest-Running

The Montana races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.

Largest field2,538 finishersMissoula Marathon Weekend of Eventsin the Half MarathonLongest-running26th yearHeadwaters Bank Run (26th Annual)annual tradition

Montana Half Marathons by City

Seeley Lake 2Kalispell 2Bozeman 2West Yellowstone 2Ennis 2Polson 1Whitefish 1Helena 1Livingston 1Missoula 1Three Forks 1Butte 1

Half Marathons in Montana by Month

June 2027 5July 2027 5

The Next Half Marathons in Montana

17 total
Sat, Jan 16, 2027Sorry 'Bout That Half Marathon and Team Relay Polson, MTHalf MarathonFrom $60Details Sat, Feb 27, 2027Snow Joke Half Marathon Seeley Lake, MTHalf MarathonFrom $45Details Sat, Mar 13, 2027Lucky Hare Half Marathon & 9K Kalispell, MTHalf Marathon5.8 MilesRegistration opens Nov 13From $75Details Sat, Mar 20, 2027Pub 317's Run to the Pub Bozeman, MT10KHalf MarathonFrom $75Details Sat, May 22, 2027Whitefish Marathon, Half Marathon & 5K Whitefish, MTMarathonHalf Marathon5KFrom $85Details Sat, Jun 12, 2027Governor's Cup Helena, MTHalf Marathon10K5K1 MileFrom $60Details Sat, Jun 19, 2027FTBT Half Marathon, 10K and 5K Trail Run Kalispell, MTHalf Marathon10K5KRegistration opens Jan 1, 2027From $60Details Sat, Jun 26, 2027Yellowstone Park Trail Races West Yellowstone, MTMarathonHalf Marathon50K25KFrom $75Details Sat, Jun 26, 2027WICKED FAST MARATHON & HALF MARATHON MONTANA Livingston, MTMarathonHalf MarathonFrom $99Details Sun, Jun 27, 2027Missoula Marathon Weekend of Events Missoula, MT5K1.2 MilesMarathonHalf MarathonFrom $105Details Sat, Jul 10, 2027Madison Marathon Ennis, MTMarathonHalf MarathonFrom $80Details Sun, Jul 11, 2027Big Sky Marathon Ennis, MTMarathonHalf Marathon50KFrom $80Details

How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Oct 25, 2026.

Common Questions About Running a Half Marathon in Montana

Which Montana cities have the most half marathons?

Seeley Lake (2), Kalispell (2), Bozeman (2), West Yellowstone (2) lead the state for Half Marathon races. Those give you the most dates to choose from if your schedule is tight.

When are most half marathons held in Montana?

June is the busiest month for Half Marathon races in Montana, with 5 of the 17, followed by July with 5. If you are flexible on the date, that is the quickest way to narrow things down.

Are Montana Half Marathon races beginner-friendly?

Yes, for the most part. Across the 12 Half Marathon races in Montana with published results, the typical median finish is around 2:16:36, which means half of every one of those fields came in slower than that. Recreational runners and walk-runners are the bulk of these fields, not the exception.

Are there trail Half Marathon races in Montana?

Yes, 3 races around Montana get you off the pavement: 3 are trail races.