Trail Running Calendar South Dakota 2026-2027

A multi-distance trail running event in Sturgis, SD featuring a 100 mile course of about 108 miles on the Centennial Trail, plus 50M, 50K and 30K options, multiple aid stations, drop bag support, and bus transportation to off-site starts.

Trail ultramarathon at Great Bear Ski Valley near Sioux Falls, SD offering 20k, 30k and 50k on a 10k loop with about 1200 ft climb per loop. Multiple loops make each distance and an aid station is available at the loop start area.

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.

An annual ultramarathon in the Black Hills of South Dakota on the George S. Mickelson Trail. Races include 100 mile, 50 mile, 30 mile, 20 mile, and a 30 mile CrossFit relay option.

A 5K event with two options: a Pump N' Run where bench press reps reduce 5K time, and a Traditional 5K, both on Adams Homestead limestone trails in North Sioux City.

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 r..

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-duration timed running event on a 1.5 mile loop around an organic farm near Lennox, South Dakota. Camping and a stocked aid station with flush toilets are available, with races ranging up to 48 hours.

A backyard ultra near Spearfish on September 12, 2026, run as repeated 4.167 mile loops on the Big Hill trails. The event features an aid station, trailhead camping, strict one hour lap rules, and distance milestone awards.

Trail races in Big Sioux Recreation Area near Brandon, SD, with 5-mile and 2-mile options plus a free kids race. Courses mix paved and dirt trails through prairie, woods and a bluff; routes may change if heavy rain affects the floodplain.

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 trail event at Dorothy Pecaut Nature Center in Sioux City on October 3, 2026. It features a 5 Mile trail run, hike or ruck plus a kids 1k, marked trails, notable elevation gain, and age group awards.

Newton Hills Trail Race in Canton, SD on October 10, 2026 features 2 mile and 6 mile courses through Newton Hills State Park with chip timing, age-division series points, and race-day park permit requirements.

A trail event at Newton Hills State Park near Canton SD offering 20K, 30K, and 50K on a 10 km loop with about 850 ft elevation per loop, frequent aid access, and strict time cutoffs for each distance.

A 50K at Tuthill Park where runners complete a 0.31 mile loop one hundred times within 12 hours. Entry is by essay and runners pledge donations that are pooled and awarded to the winning runners' chosen charities.