Trail Running Calendar United States 2026-2027

A mountain trail race at Arapahoe Basin on September 5, 2026 covering 9.4 miles and 2,211 ft of vertical. The marked course uses established trails in White River National Forest and finishes in Mountain Goat Plaza with live music and food.

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 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..

Set in the hills of Tuscarawas County, the Tuscazoar endurance races use a 25 mile loop on mostly trail and offer 100, 75, 50 and 25 mile distances with day and night options, aid stations, cupless policy, and finish 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 in Fort Wayne where participants complete as many full laps as possible on a loop of paved path, gravel and single track. Lap counts are recorded on a whiteboard and electronically.

A community focused backyard ultra at Sedgwick County Park where runners complete repeated 4.167 mile loops each hour until one runner remains. One hundred dollars from each registration supports 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.

Muddy Dash Pittsburgh at Switchback MX on September 5, 2026 is a family-friendly 5K mud run with obstacles, mud pits, slides, a pre-party and a post-race festival with food and music. Registration includes value and VIP package options.

Experience a unique trail race at Camp Manatoc featuring technical single track paths normally closed to the public. Run the half marathon 15k or 5k distances through wooded terrain with special permission to bring your dog along.

A rural ultramarathon in Booneville, Iowa offering 10K up to 100-mile distances on hilly, often rugged backroads; upcoming races will use marked ultra routes, allow limited crew support, and offer Trail Sisters discounts.

Experience a scenic trail race through Camp Mt. Luther with 5k and 10k double loop options. This event features a kids fun run, finisher awards for all participants, and supports a local cause in memory of Rev. Glenn Heasley.

Sidewinder is a new trail race in Montour Woods and Moon Park, Coraopolis, PA offering Half Marathon, 20 Mile, and 50K routes over twisty singletrack with aid stations, notable elevation gain, and proceeds benefiting Hollow Oak Land Trust.

Timed 24 hour, 12 hour and 6 hour runs take place at Lapham Peak State Park on September 5 and 6, 2026, on a one mile loop with night lighting and chip timing. The event includes a cupless aid station and a Distance division.

An obstacle and mud focused 5K at Golden Spike Event Center on September 5, 2026, featuring mud pits, walls, ropes, and a pre race and finish line festival. Registration offers Value and VIP packages and packet pickup the day before.

A lakeside trail and paved race at Bluebell Beach in Flint on September 5, 2026 offering 3 Mile, 5 Mile, 12.5K and a virtual option. Chip timing, race shirt, finisher medal, age group awards and post race refreshments.