South Dakota · Half Marathon
Half Marathons in South Dakota
South Dakota currently has 12 upcoming half marathons with a confirmed date listed in RaceRove. Sioux Falls, Spearfish, Aberdeen and Custer have the largest concentration of events.
May (3), July (3) and September (3) are the busiest months on the calendar right now. Another 5 annual half marathons are waiting for next year's date to be announced.
- Upcoming, date confirmed
- 12
- Active listings
- 17
- Cities with races
- 14
More ways to browse South Dakota
Upcoming half marathons in South Dakota
All 12 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 South Dakota
By estimated field size across all distances at the event.
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Crazy Horse MarathonHill City, SD Usually held in October · next date not announcedMarathonHalf5-Person Relay ~900 runners
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Brookings MarathonBrookings, SD Usually held in May · next date not announcedMarathonHalfRelay ~600 runners
When half marathons happen in South Dakota
- April
- 1 upcoming race
- May
- 3 upcoming races
- June
- 1 upcoming race
- July
- 3 upcoming races
- August
- 1 upcoming race
- September
- 3 upcoming races
South Dakota cities with the most half marathons
- Sioux Falls
- 2 upcoming races
- Spearfish
- 2 upcoming races
- Aberdeen
- 1 upcoming race
- Custer
- 1 upcoming race
- Deadwood
- 1 upcoming race
- Keystone
- 1 upcoming race
- Pierre
- 1 upcoming race
- Rapid City
- 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.
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Crazy Horse MarathonHill City, SD Usually held in October · next date not announcedMarathonHalf5-Person Relay ~900 runners
-
Brookings MarathonBrookings, SD Usually held in May · next date not announcedMarathonHalfRelay ~600 runners
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Palace City Kiwanis Half Marathon, 10K & 5KMitchell, SD Usually held in October · next date not announcedHalf Marathon10K5K ~200 runners
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Run Crazy HorseCrazy Horse, SD Usually held in October · next date not announced3 to 5-Person Marathon Relay - Team Captain RegistrationFast 5KHalf MarathonKids 1K +1 more ~135 runners
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Popsicle 5K/10K/Half - Sioux FallsSioux Falls, SD Usually held in August · next date not announcedHalf Marathon5K10K
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 South Dakota: common questions
- How many half marathons are there in South Dakota?
- RaceRove currently lists 12 upcoming half marathons in South Dakota with a confirmed date, plus 5 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 South Dakota cities have the most half marathons?
- By upcoming events listed in RaceRove: Sioux Falls (2), Spearfish (2), Aberdeen (1), Custer (1) and Deadwood (1).
- When is half marathon season in South Dakota?
- Of the upcoming half marathons listed, the busiest months are May (3), July (3) and September (3).
- What is the biggest half marathon in South Dakota?
- By estimated field size, the largest event with a half marathon listed in South Dakota is the Deadwood Mickelson Trail Marathon, with about 2,000 runners across all of its distances.
Search every half marathon in South Dakota
Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.