Wyoming · Half Marathon
Half Marathons in Wyoming
Wyoming currently has 14 upcoming half marathons with a confirmed date listed in RaceRove. Casper, Cody, Laramie and Cheyenne have the largest concentration of events.
September (4), June (3) and July (3) are the busiest months on the calendar right now. Another 2 annual half marathons are waiting for next year's date to be announced.
- Upcoming, date confirmed
- 14
- Active listings
- 16
- Cities with races
- 12
More ways to browse Wyoming
Upcoming half marathons in Wyoming
All 14 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 half marathon events in Wyoming
By estimated field size across all distances at the event.
When half marathons happen in Wyoming
- May
- 1 upcoming race
- June
- 3 upcoming races
- July
- 3 upcoming races
- August
- 1 upcoming race
- September
- 4 upcoming races
- October
- 2 upcoming races
Wyoming cities with the most half marathons
- Casper
- 2 upcoming races
- Cody
- 2 upcoming races
- Laramie
- 1 upcoming race
- Cheyenne
- 1 upcoming race
- Devils Tower
- 1 upcoming race
- Green River
- 1 upcoming race
- Jackson
- 1 upcoming race
- Lander
- 1 upcoming race
Annual events awaiting their next date
These half marathons are held every year, but the next date isn't in the listing yet. The month shown is when each is usually held.
-
Med Bow Rail Trail Marathon & Half MarathonLaramie, WY Usually held in August · next date not announcedMarathonHalf Marathon ~150 runners
-
Wolf Creek Wrangle Trail RunWolf, WY Usually held in September · next date not announced18-MileHalf Marathon7-Mile5-Mile (trail) ~150 runners
Half Marathons in nearby states
Guides from the RaceRove blog
- 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.
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 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.
Half Marathons in Wyoming: common questions
- How many half marathons are there in Wyoming?
- RaceRove currently lists 14 upcoming half marathons in Wyoming with a confirmed date, plus 2 annual events whose next date hasn't been announced yet.
- How long is a half marathon?
- A half marathon is 13.1 miles (21.1 kilometres).
- Which Wyoming cities have the most half marathons?
- By upcoming events listed in RaceRove: Casper (2), Cody (2), Laramie (1), Cheyenne (1) and Devils Tower (1).
- When is half marathon season in Wyoming?
- Of the upcoming half marathons listed, the busiest months are September (4), June (3) and July (3).
- What is the biggest half marathon in Wyoming?
- By estimated field size, the largest event with a half marathon listed in Wyoming is the Grand Teton Half Marathon, with about 2,500 runners across all of its distances.
Search every half marathon in Wyoming
Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.