Trail Running Calendar South Dakota 2026-2027

A stair-focused event in Hot Springs SD with three routes from a 2 mile Sock Hop to a 13.1 mile half, family activities, and options for walkers and leashed dogs.

A weekend XTERRA trail running event in Deadwood, South Dakota offering marathon, half marathon, 5K, kids run and a marathon relay, with a USATF certified marathon and World Series qualification slots.

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 races at Tomaha Trail in Hisega, South Dakota on July 25, 2026. Distances include a half marathon, a 30k with notable elevation gain, and an out and back 10k.

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.

Test your endurance at Big Hill Trails with a 3 or 6 hour mountain bike race or trail run. Support child advocacy in South Dakota while navigating flowy single track loops through the scenic Black Hills National Forest.

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.

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.