Trail Running Calendar United States 2026-2027

The Cirque Series at Arapahoe Basin on Sept 5, 2026 is a 9.4 miles mountain trail race with 2,211 ft of ascent on approved White River National Forest trails. The field is capped at 600 runners and includes a branded hat, bib and medal.

Test your endurance at Pineland Farms in Maine with this backyard ultra trail race. Run a 4.2 mile loop through pristine wooded trails and see how many laps you can complete in this last person standing format.

High-country trail races in Taos Ski Valley offering a full marathon, two half marathons and a new 10K with climbs to Kachina Peak and Fraser Peak and extensive single-track alpine scenery.

Experience a scenic 3.3 mile trail run or hike through the Oswegatchie Hills Nature Preserve. Support local land conservation while enjoying a timed course around Clark Pond followed by an awards ceremony with refreshments.

Trail runs and a ruck event at Queeny Park on September 5, 2026. Events include chip timing, lap aid stations, finisher medals, age group awards, event shirts and backpacks.

Trail Animals Running Club hosts a multi distance trail event at Great Brook Farm State Park on September 5, 2026. Looped 10K and 10 mile courses cover distances from 10K to 50 miles, plus a youth fun run and a Yeti Mischief Mile.

The The Sneffels Round will take place in Ouray on Saturday 5 September 2026.

Trail races in Pine Valley, California on September 5, 2026 offering 50 kilometer and 15 kilometer options. Both races have fixed cutoffs, marked trails with frequent ribbons, staffed aid stations, and specific rules for pacers, crews, and..

Multi-distance trail races on a 25 mile loop at Camp Tuscazoar near Dover OH, featuring night options, cupless aid stations, pacer policies, and finisher awards.

A timed 4 hour and 8 hour trail endurance event on a 3.15 mile loop at Cedar Bend Park near Waverly, Iowa on September 5, 2026. Laps count only within the time limits and a main aid station serves the start and finish.

A six hour timed night trail event at Franke Park where participants complete laps on paved, gravel and single track trails with laps recorded on a whiteboard and electronically.

A community Backyard Ultra in Wichita where runners loop a 4.167 mile course each hour until one remains, with $100 from every registration donated to Family Promise of Greater Wichita.

Experience an off road adventure at Panther Creek State Park featuring half marathon and 10K trail distances. Run through wooded loops and scenic lakeside paths in this established Tennessee trail series event.

A family friendly 5K mud run at Switchback MX on September 5, 2026 with obstacles, mud pits, an on‑site festival and VIP and value registration options.

Trail races at Camp Manatoc on September 5, 2026 include a half marathon plus new 15K and 5K options on mostly single track technical trails; dogs are allowed.

A rural ultra in Booneville, IA on Sep 5, 2026 offering 100-mile, 100K, 50K and 10K races over hilly country roads with newly marked ultra courses.

A trail race at Camp Mt. Luther offering 5K and 10K looped courses to benefit Camp Mount Luther. The event includes a kids fun run, awards for top finishers and all finishers, and a water stop at the 5K mark.

Trail races of 13.1 miles, 20 miles, and 50K through Montour Woods with aid stations, finisher medals, and proceeds to Hollow Oak Land Trust.

Timed ultrarunning at Lapham Peak State Park with 24, 12 and 6 hour options plus a distance division for marathon and longer targets. One mile loop, chip timing, an aid station, and a cupless refill policy.

Obstacle and mud focused 5K at Golden Spike Event Center in Salt Lake City on Sep 5, 2026, featuring mud pits, walls, ropes and a post race festival.