South Dakota Ultramarathons
6 upcoming ultras across South Dakota, updated nightly. Want radius search and maps? Open these in the Race Finder.
August 2026
- Sat 8/1Lean Horse Ultra MarathonCuster, SD 路 Other 路 50K 路 50 Mile 路 100 Mile 路 Marathon
September 2026
- Fri 9/4The Blood RunLennox, SD 路 Ultra
- Sat 9/12Black Hills Backyard UltraSpearfish, SD 路 Ultra
- Wed 9/16Black Hills Veterans March and MarathonDeadwood, SD 路 100 Mile 路 Marathon 路 Other
November 2026
- Sat 11/7Glacier Hills Ultra 50KCanton, SD 路 50K 路 Other 路 Half Marathon
May 2027
- Sat 5/1TutHell 50KSioux Falls, SD 路 50K
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