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Trail Running Calendar South Dakota 2025-2026

We have found 4 Trailruns in South Dakota. Check below where and when you can find the races.

Tuthell 50K

Sioux Falls

Tackle TutHell 50K in Sioux Falls on May 2, 2026, a fierce 100 lap climb and descent around Tut Hill that tests endurance and will. Entry is by essay and all pledge donations go to the nonprofits chosen by the male and female winners.

June 2026

Xterra Deadwood Mickelson

Deadwood

XTERRA Deadwood Mickelson : Deadwood, SD (Jun 7, 2026) XTERRA Deadwood Mickelson is a trail running event in Deadwood, South Dakota, and is part of the XTERRA Trail Run World Series. The event offers multiple race options and lists 232 Trai..

Black Hills 100 - Sturgis, SD

Sturgis

Black Hills 100 is an ultramarathon weekend in Sturgis SD offering 100 mile, 50 mile, 50K and 30K races on scenic yet rugged single track forest trails. Expect big climbs, point to point courses and full aid support.

July 2026

Lean Horse Ultra

Custer

Run the scenic George S. Mickelson Trail in the Black Hills at the Lean Horse Ultra Marathon in Custer, South Dakota. Distances from 100 mile to 20 mile plus relays offer a limestone trail challenge for solo runners and teams.