Trail Running Calendar South Dakota 2026-2027

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.

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.

Trail ultramarathons around Sturgis, South Dakota on June 26 and 27, 2026 offer 100 mile, 50 mile, 50K and 30K options. Courses use the Centennial and Deerfield trails, include multiple aid stations, and provide bus transport to remote star..

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 near Hisega, SD offering a 30K, a 12.37-mile half marathon, and a 10K out and back from Hisega Lodge. Courses include notable elevation gain; registration fees vary and Black Hills Runners Club members receive discounts.

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 Big Hill near Spearfish with hourly 4.167 mile loops and about 375 feet of climb per lap. Runners repeat loops until one competitor completes one more lap than any other.

Trail races at Big Sioux Recreation Area include a 5 Miler, 2 Miler and a free kids race over paved and dirt trails, with chip timing and park entry required; courses may change if heavy rainfall affects the floodplain.

Newton Hills Trail Races offer 2-mile and 6-mile trail courses at Newton Hills. Held since 2002, the event is part of the Sioux Falls Area Running Club Trail Series and counts toward the series point championship.

A trail ultrarace at Newton Hills State Park offering 20K, 30K and 50K on a 10k loop with about 850 ft elevation per loop. Aid and water are available each loop and time cutoffs apply for every distance.