Trail Running Calendar South Dakota 2026-2027

A trail ultra at Great Bear Ski Valley near Sioux Falls offering 50k, 30k and 20k on a roughly 10k loop with nearly 1200 ft of elevation gain per loop. Aid station and drop bags are at the Bear Den.

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.

Timed loop races on a 1.5 mile course around an organic vegetable farm near Lennox, SD. Multiple durations are offered with on-course aid, flush toilets, and on-site camping for crews.

Backyard ultra at Big Hill near Spearfish SD with 4.167 mile loops and about 375 ft elevation change per loop. New lap starts each hour and the last runner to outpace all others wins.

Trail races in Big Sioux Recreation Area near Brandon, SD, offering 5-mile, 2-mile and a free kids race with chip timing; courses may change if heavy rainfall affects the park.

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.

Trail races at Newton Hills State Park in Canton, SD on October 10, 2026. Includes 6 mile and 2 mile routes on single track and multi purpose trails, chip timed with a park permit required.

A trail event on November 7, 2026 at Newton Hills State Park near Canton, SD offering 20K, 30K and 50K on a 10K loop with about 850 ft gain per loop. Aid is available each lap and a multi year award exists for completing all distances.

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.