Which Montana cities have the most Half Marathon races?
West Yellowstone (2), Whitefish (2), Seeley Lake (2), Ennis (2) lead the state for Half Marathon races. Those give you the most dates to choose from if your schedule is tight.
Montana · Half Marathon
Half Marathon Races 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 Marathon races · 12 with finish-time stats
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.
Half Marathon Races by City
Soonest Half Marathon Races in Montana
17 total Sat, Aug 1, 2026Yellowstone Trail Races West Yellowstone, MTFrom $50Details Sat, Aug 8, 2026Smelter City Scamper Anaconda, MTFrom $40Details Sat, Aug 15, 2026WICKED FAST MARATHON & HALF MARATHON MONTANA Livingston, MTFrom $135Details Sat, Aug 22, 202618th Annual Canine Classic at Paws Up Greenough, MTFrom $40Details Sun, Sep 6, 2026AIDSPIRIT USA Marathon Harlowton, MTFrom $35Details Sun, Sep 13, 2026Bozeman Half Marathon & 10K Bozeman, MTFrom $65Details Sun, Sep 20, 2026Montana Marathon Billings, MTFrom $45Details Sat, Oct 3, 2026Whitefish Trail Blazer Whitefish, MTFrom $30Details Sun, Oct 4, 2026Back Roads Half & 10k Red Lodge, MTFrom $30Details Sun, Oct 18, 2026Just for the Helena of It Helena, MTFrom $35Details Sat, Jan 16, 2027Sorry 'Bout That Half Marathon and Team Relay Polson, MTFrom $46Details Sat, Feb 27, 2027Snow Joke Half Marathon Seeley Lake, MTFrom $35Details
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 Jul 27, 2026.
Common Questions About Running a Half Marathon in Montana
When are most Half Marathon races held in Montana?
August is the busiest month for Half Marathon races in Montana, with 4 of the 17, followed by July with 4. If you are flexible on the date, that is the quickest way to narrow things down.
How much do Montana Half Marathon races cost?
Entry fees for Half Marathon races here run from $30 to about $135, depending on the event and how early you register.
How early should I register for a Half Marathon in Montana?
9 of the 17 Half Marathon races in Montana already have a price increase scheduled, so entry gets more expensive the longer you leave it. Race pricing almost always steps up as the date approaches, and signing up early is usually the cheapest option.
Are Montana Half Marathon races beginner-friendly?
Yes, for the most part. Across the 10 Half Marathon races in Montana with published results, the typical median finish is around 2:14:46, 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, 6 races around Montana get you off the pavement: 6 are trail races. Surfaces are not always published, so it is worth checking a specific race before you register.