Trail Running Calendar South Dakota 2026-2027

On May 25, 2026 in Hot Springs, Stars, Stripes & Steps offers three stair climbing routes from a 2 mile course to a half marathon with stairs and hills. Online registration runs Feb 1 to May 23 and children under 18 pay $15.

Two days of trail events on the Mickelson Trail near Deadwood, South Dakota, featuring marathon and half marathon distances plus relay, 5K, kids 1K and a guided hike. Entry limits and tiered registration fees apply by race.

A fast downhill 5 km on the Mickelson Trail in Deadwood during the Deadwood Mickelson Trail Marathon weekend. A 1 km kids race is held the same day.

A trail event weekend based in Sturgis with races on the Centennial and Deerfield trails, offering distances from 30K to a 100 mile course listed near 108 miles and supported by multiple aid stations and drop bag locations.

A trail ultra at Great Bear Ski Valley near Sioux Falls offering 20k, 30k, and 50k distances on a roughly 10k loop with significant elevation gain and aid at the loop start and finish.

Trail and road courses at Tomaha Trail in Hisega, South Dakota offering 30K, half marathon and 10K distances with published maps, shuttle service to starts, member discounts, and a shirt guarantee date before the race.

Lean Horse Ultra is a multi-distance trail running event on the George S. Mickelson Trail in the Black Hills, held July 31 to August 1, 2026, with 100 mile, relay, 50, 30, and 20 mile options and a CrossFit edition.

A fundraising mountain bike and trail running event at Big Hill Trails supporting Northern Hills Area CASA. Riders and runners complete as many laps as possible in three hour or six hour formats on looped courses with aid stations and campi..

605 Trail Fest brings three trail distances to Good Earth State Park in Sioux Falls on August 15, 2026, including an 8 mile, a 4.5 mile and a 1 mile youth course. Packet pickup is scheduled the day before.

A multi-day timed running event on a 1.5 mile loop around an organic vegetable farm near Lennox, SD. Durations range from three hours to 48 hours and the course includes a staffed aid station and camping for crews.

A backyard ultra on a 4.167 mile loop in the Black Hills with hourly starts, on-course aid, no cell service at the trailhead, and free parking-area camping.

Trail races at Big Sioux Recreation Area near Brandon, SD include 5-mile, 2-mile and a free kids mile. Courses use paved and natural trails through prairie, woods and a bluff, with chip timing and series points.

Final race of the 2026 Black Hills Runners Club Trail Series at Alkali Trailhead in Sturgis, SD, with 10K and 18K courses through rolling hills and pine singletrack; youth entries are listed as free.

A 5 mile trail run, hike, or ruck at Dorothy Pecaut Nature Center in Sioux City on October 3, 2026, with a separate 1k kids run. The route uses Nature Center and Stone State Park trails and includes substantial elevation gain and varied tra..

Newton Hills Trail Race on October 10, 2026 features scenic single-track and multi-purpose trails in Newton Hills State Park with approximate 2 mile and 6 mile routes, chip timing, age-division points, and event swag.

Trail races at Newton Hills State Park near Canton SD offer 20K, 30K and 50K on a 10K loop with about 850 ft gain per loop. Aid stations are available each loop and fixed time limits apply.

TutHell 50K in Sioux Falls has runners complete 100 laps of a 0.31 mile loop up and down Tut Hill. Entry is by essay selection and a free will donation supports charities, with a fully stocked aid station at the hilltop.