Trail Running Calendar United States 2026-2027

Terrain Race in Oklahoma City is an obstacle and mud focused 5K at Lost Lake Entertainment Complex on August 8, 2026. The course features mud pits, walls, ropes and monkey bars and includes pre race and post race festival areas.

A trail event at Noon Hill Reservation in Medfield offering a 10 mile loop plus 50K and 40 mile ultra options, mostly singletrack with roots, rocks, and a scenic Noon Hill vista; proceeds benefit The Trustees of Reservations.

Run The Skyline is a trail running event on August 8, 2026 offering multiple race distances from a half marathon up to 55K. It features separate race pages, a registration option, and an entrants list.

A time-based trail event at Napa’s Skyline Wilderness Park with 12-, 6-, and 3-hour formats plus relay teams. Main loop is about 4.1 miles with ~815 ft elevation per lap and a 0.34-mile short loop opens for the final 40 minutes.

A high Sierra trail event at Horse Canyon Trail Junction offering 5.6M, 10.5M, 21M and 50K options across alpine loops. The course sits near 7,400 feet with two aid stations, limited field size, and variable mountain weather.

A trail race weekend in Cooke City, Montana with 50k, 30k and an 80K option set among mountain scenery and historic mining sites on 8/8 to 8/9/2026.

Follow the path of a historic outlaw on this mostly downhill point to point race. Run through the Sawtooth National Forest on a mix of rugged jeep trails and ten miles of single track forest paths.

Trail run and fundraiser in Poultney Vermont featuring an 8K, a half marathon and a kids fun run on singletrack and double track trails. Cup free aid stations offer refills, with awards, snacks and a post race raffle.

A loop ultrarunning event at Kennekuk Cove County Park with 3.25 mile laps, aid stations, camping, shirts and swag bags, and four hour and eight hour runner and walker options. Field limited to 250 participants.

Trail races in Lewis Center, Ohio on a 4.1 mile loop beside Alum Creek Reservoir, with 7K, 13K, 20K and 26K options and marked lap choices for 1 to 4 laps.

A trail running event on Aug. 8, 2026 in Gilroy, California through redwood groves and peak viewpoints. Distances include a 5K, 10K and half marathon with significant elevation gain, and proceeds support youth scholarships.

A trail backyard-ultra in Maple Grove where runners complete repeating 5K laps up to 50K. Virtual entries and kid-friendly options are available, and all registration fees benefit the Children's MN Cancer Fund.

A cross country 5K and a 0.5 mile kids fun run at South Range High School in Canfield Ohio with finisher medals, event shirts, and awards for top overall and age group finishers.

A timed 6 hour and 12 hour loop event in Chester, VT on August 8, 2026. The 1.8 mile loop has about 280 feet of climb per lap and basic aid plus communal food are available.

Night trail runs near Alum Creek Reservoir in Lewis Center, Ohio with looped options of 7K, 13K, 20K and 26K. The course uses LED markers, requires headlamps, and includes a finisher amenity and awards for top finishers.

Experience a 5k mud run and garden party at the Wooden Shoe Tulip Farm. This annual event combines an adventurous obstacle course with a vibrant flower festival to support local charitable community projects.

Experience hilly trails and scenic park reserves in Annandale, Minnesota. Choose between a supported 50k or half marathon with on site lodging and a finish line right by Lake Sylvia.

The 15th Annual 5k Race to the Ledges in Concord, NH on August 8, 2026 features a short road and trail course and includes post-race brunch boxes to take away. Registration includes an adult 5 km entry and a free kids 5 km for ages 6 and un..

A trail event in Lafayette, CA on August 8, 2026 offering a half marathon, 10K, 5K and remote entry, with chip timing, finisher medals, event shirts, hiker-friendly options and a final shaded single track descent.

A community road and trail event on August 8, 2026 at the Ghost Town Trail access in Dilltown, Pennsylvania. It features a timed 7K with chip timing and a timed 2 mile fun run with gift card drawings, benefiting local parks and trails.