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
Time-based mountain bike and trail run event at Big Hill Trails supporting Northern Hills Area CASA, with 3- and 6-hour race options, team entries, aid stations, participant lunch, camping allowed, and cash prizes for breaking 6-hour bike records.
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 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 running events on a 1.5 mile loop around an organic vegetable farm near Lennox, SD, with camping and a staffed aid station.
Backyard ultra in Spearfish with hourly 4.167 mile loops, last runner standing format, aid station, awards and nearby dispersed camping.
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 featuring 5- and 2-mile courses plus a free kids mile, chip timing, and series points by age division.
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
Trail races at Newton Hills State Park in October offering 6 mile and 2 mile courses, club organized with age division points and race awards.
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
Trail ultrarunning weekend in Sturgis SD featuring about 108 mile, 50 mile, 50K and 30K courses on Centennial and Deerfield trails with aid stations.