Trail Running Calendar South Dakota 2025-2026

Old Baldy is a trail race held on the Old Baldy Trail just south of Spearfish, South Dakota. The main event covers 7.75 miles of scenic but rugged terrain through the Black Hills, featuring forested paths, rolling hills, and rewarding views near the summit—a classic South Dakota trail experience for..

Great Bear Trail Races is a Sioux Falls, South Dakota trail running series held in the Great Bear Recreation Area. The annual TRS offers 3-mile and 6-mile routes, plus a free kids race. The loops traverse a 220-acre park featuring wide gravel and single-track trails, forested hills, open prairie, an..

Newton Hills Trail Race, part of the Sioux Falls Area Running Club Trail Race Series, unfolds at Newton Hills State Park near Canton, South Dakota. Runners choose between a 2-mile Woodland Trail loop and a 6-mile multi‑trail course with several climbs, starting and finishing by the picnic shelter ne..

The Trick or Treat Trail Run 10K, held annually in Sioux Falls, South Dakota, takes place at Pasley Park along the scenic Big Sioux River bike path. This festive event offers a 10K run, a 5K run/walk, and a Candy Dash for children aged 3-10, featuring a 0.5-mile course. Participants enjoy a fun, fam..

Glacier Hills Ultra 50K is a trail ultramarathon at Newton Hills State Park near Canton, South Dakota. The event offers 50K, 30K, and 20K distances, each run as loops through the Newton Hills trail system, roughly 850 feet of elevation per 10K. The four miles of shared horse-trail sections add varie..

TutHell 50K is an essay-based ultramarathon held in Sioux Falls, South Dakota. Runners tackle a 0.31-mile grassy loop up Tut Hill 100 times, totaling about 31 miles with roughly 9,000 feet of cumulative elevation gain and the same amount of descent. Trekking poles are allowed, and the course is well..

XTERRA Deadwood Mickelson is a trail run event in the Black Hills of South Dakota and is part of the XTERRA Trail Run World Series. The course passes an abandoned mining town, crosses railroad trestles, goes through a mountain, passes large rock formations, follows a creek and finishes in the histo..

Black Hills 100 in Sturgis, South Dakota, offers four race options: 100-mile, 50-mile, 50K, and 30K, held June 26–27, 2026. The course starts and finishes at Sturgis City Park, looping from Sturgis to Silver City and back. The 100-mile route is about 108 miles, mostly dirt trails with a paved initia..