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Marathons in South Dakota, United States

30 upcoming marathons listed in South Dakota across 2 cities. Next: Lennox Lapsley's Running for Healthy Hearts on July 11, 2026.

30marathons upcoming
2cities
July 11, 2026Next race
Marathon, Half marathon, Ultra, 10K, 5K, RelayDistances

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11JUL
21.1K course — Millboro, South Dakota, United States
Lennox Lapsley's Running for Healthy Hearts
Millboro, South Dakota, United States
July 11, 2026 JUL
11JUL
21.1K course — Spearfish, South Dakota, United States
Spearfish Canyon Half Marathon & 5K
Spearfish, South Dakota, United States
July 11, 2026 JUL
18JUL
ULTRA course — Sioux Falls, South Dakota, United States
Crazy Bear Ultra
Sioux Falls, South Dakota, United States
July 18, 2026 JUL
25JUL
21.1K course — Aberdeen, South Dakota, United States
Aberdeen Family YMCA Bull Run
Aberdeen, South Dakota, United States
July 25, 2026 JUL
25JUL
21.1K course — Hisega, South Dakota, United States
Haven Half Marathon, 30k & 10k
Hisega, South Dakota, United States
July 25, 2026 JUL
01AUG
ULTRA course — Custer, South Dakota, United States
Lean Horse Ultra Marathon
Custer, South Dakota, United States
August 1, 2026 AUG
02AUG
21.1K course — Sioux Falls, South Dakota, United States
Heatwave Half Marathon - Sioux Falls
Sioux Falls, South Dakota, United States
August 2, 2026 AUG
08AUG
42.2K course — Rapid City, South Dakota, United States
Mount Rushmore Marathon & Half
Rapid City, South Dakota, United States
August 8, 2026 Certified
08AUG
21.1K course — Sioux Falls, South Dakota, United States
Popsicle 5K/10K/Half - Sioux Falls
Sioux Falls, South Dakota, United States
August 8, 2026 AUG
16AUG
ULTRA course — South Dakota, United States
Leading Ladies' Marathon & Half Marathon
South Dakota, United States
August 16, 2026 AUG
23AUG
42.2K course — Spearfish, South Dakota, United States
Leading Ladies Marathon / Dakota Spirit Marathon
Spearfish, South Dakota, United States
August 23, 2026 AUG
23AUG
ULTRA course — South Dakota, United States
Sioux Falls Marathon
South Dakota, United States
August 23, 2026 AUG
12SEP
ULTRA course — Spearfish, South Dakota, United States
Black Hills Backyard Ultra
Spearfish, South Dakota, United States
September 12, 2026 SEP
12SEP
21.1K course — Keystone, South Dakota, United States
Mount Rushmore Half Marathon
Keystone, South Dakota, United States
September 12, 2026 SEP
13SEP
42.2K course — South Dakota, United States
Sundance to Spearfish Marathon
South Dakota, United States
September 13, 2026 SEP
16SEP
ULTRA course — Deadwood, South Dakota, United States
Black Hills Veterans March and Marathon
Deadwood, South Dakota, United States
September 16, 2026 SEP
19SEP
ULTRA course — Brookings, South Dakota, United States
Jack 15 Road Race
Brookings, South Dakota, United States
September 19, 2026 SEP
20SEP
42.2K course — Sioux Falls, South Dakota, United States
Sioux Falls Marathon
Sioux Falls, South Dakota, United States
September 20, 2026 BQ Qualifier
26SEP
21.1K course — Sioux Falls, South Dakota, United States
Golden Harvest Half Marathon & 5k/10k - Sioux Falls
Sioux Falls, South Dakota, United States
September 26, 2026 SEP
01OCT
42.2K course — South Dakota, United States
Center of the Nation Series - Day 4 (SD)
South Dakota, United States
October 1, 2026 OCT
01OCT
42.2K course — Belle Fourche, South Dakota, United States
Center of the Nation - SD
Belle Fourche, South Dakota, United States
October 1, 2026 OCT
03OCT
42.2K course — Brookings, South Dakota, United States
Brookings Marathon
Brookings, South Dakota, United States
October 3, 2026 OCT
04OCT
21.1K course — Mitchell, South Dakota, United States
Palace City Kiwanis Half Marathon, 10k, and 5k
Mitchell, South Dakota, United States
October 4, 2026 OCT
04OCT
42.2K course — Crazy Horse, South Dakota, United States
Run Crazy Horse
Crazy Horse, South Dakota, United States
October 4, 2026 OCT

Cities

Place Marathons
Rapid City 1
Sioux Falls 1

Planning notes for South Dakota, United States

Use this region page to shortlist 30 upcoming races by date, distance, registration path, and official source.

  • Next raceLennox Lapsley's Running for Healthy Hearts on July 11, 2026
  • Busy monthsAugust (7), October (7), September (7)
  • DistancesMarathon, Half marathon, Ultra, 10K, 5K, Relay
  • VerifyOpen each race page, then confirm details from its official, registration, course-map, or source link.

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