South Dakota
South Dakota Trail Running Calendar 2026-2027
Explore the best trail runs in South Dakota for 2026-2027! Our updated list features 12 exciting trail runs across the region. Find your next trail run in South Dakota below and join the trail community at these great events!
August 2026
A 5 mile trail race on Hell Canyon Trail near Custer SD with an initial climb, creek crossings, a downhill finish, and post-race refreshments.
September 2026
Timed endurance races on a 1.5 mile loop around an organic farm near Lennox SD, with events from 3 to 48 hours, camping, a staffed aid station, and simple lap scoring.
Backyard ultra on Big Hill trails near Spearfish SD where runners repeat 4.167 mile loops each hour until one runner completes one more loop than the rest.
A weekend of march and marathon events on the Mickelson Trail near Deadwood honoring veterans, with distances from 16 to 110 miles, team and individual formats, military divisions, and rest stops every 3 to 5 miles.
Trail races at Big Sioux Recreation Area near Brandon, SD offering 5-mile, 2-mile and a free kids mile on paved and dirt trails as part of a points series.
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.
October 2026
Newton Hills Trail Races at Newton Hills State Park feature a scenic 6 mile course with elevation and a family friendly 2 mile route on October 10, 2026.
November 2026
Trail ultramarathon at Newton Hills State Park with 10K loops offering 20K, 30K and 50K options, substantial climbing, aid every loop, and a required state park pass.
May 2027
A 50K at Tuthill Park where runners complete a 0.31 mile loop 100 times with about 90 feet of climb per loop. Entry is by essay and all donations go to charities chosen by the winners.
June 2027
Marathon, half marathon, relay, 5K and kids 1K on the George S. Mickelson Trail between Rochford and Deadwood, South Dakota.
Multi-distance ultramarathon on the Centennial Trail in Sturgis, South Dakota, with 100 mile, 50 mile, 50 km and 30 km over rugged single track terrain.