Trail Running Calendar United States 2026-2027

Tough Mudder Indiana at CERAland Park on August 1, 2026 offers 15K and 5K courses with 20+ and 12+ obstacles, spectator passes, group packages, finisher medals and gear, plus volunteer and VIP options.

An obstacle race weekend at Tryon International Equestrian Center on Aug 1 and 2, 2026. Courses include a Sprint 5K and Super 10K plus kids races and a pre-race obstacle workshop.

The Waldo 100K is a 100 kilometer loop trail race in Oakridge, Oregon on August 1, 2026. The route starts at Willamette Pass Ski Area and includes mountain climbs, remote single track sections, and views of Waldo Lake.

Sheep Mountain Trail Runs in Fairplay, CO offers 50 mile, 50k and half marathon courses at high elevation with technical trails and forest roads. The event includes stocked aid stations, a finisher medal, drop down options and a 16 hour tim..

A 100 mile mountain trail race around Mt. Hood with 17,300 feet of ascent and descent, staged at Mt. Hood Meadows. The crew accessible lollipop loop course features aid stations, chip timing and a finisher metal belt buckle.

Test your endurance at Cooper River Park on a fast and flat 3.75 mile paved loop. Choose from 12 hour, 24 hour, or 100 mile challenges with great views of Philly and full aid station support.

Volcanic stages rugged trail races around Mt. St. Helens with a full circumnavigation 50K and a 25K that shares iconic volcanic terrain, steep climbs, boulder fields, river crossings, and substantial elevation change. Both races start and f..

A 15 mile mountain trail run on August 1, 2026 that climbs about 3,100 feet and reaches over 12,000 feet at Kennebec Pass. The course offers alpine terrain and views of the Animas and Dolores River valleys while supporting La Plata County S..

A multi-distance trail event on Blue Hill Mountain near the coast, with 5k, 10k, 25k and 50k courses that include summit loops. Proceeds support Blue Hill Heritage Trust and Wabanaki Alliance.

Oakadoke Trail Runs in Valparaiso, IN features single track trails with varied terrain and pond views. Three distances are offered, aid stations are spaced along the route, and a post race meal is provided; the event is cupless.

Trail races in Aspen offering 50K, marathon and heavy half-marathon on dirt trails with high alpine sections and significant elevation gain. Limited support and remote aid stations; finish-day festival and local Duck Derby take place at Rio..

A night trail race at Cedar Hill State Park with approximate distances 5K, 10K, 18K, 36K and 54K on the DORBA trail system. Hydration devices are required, aid station coverage varies, and illumination is needed after dark.

A mountain trail race day at Eagle Point Resort offering 100K, 70K, marathon and half marathon distances on high elevation technical courses with substantial climbing, marked trails, staffed aid stations, and mandatory safety gear.

A combined trail running and equestrian endurance event in Burgettstown, PA offering 10k, half marathon, 50k and 50 mile options on single track, gravel and meadow terrain, with AERC sanctioning for riders.

Scenic 5K, 10K and half marathon in Green Valley Lake with lakefront sections, forest service roads, aid stations and chip timing. Proceeds support youth environmental programs and trail maintenance.

A mountain trail weekend in Taos Ski Valley featuring an alpine 10K and 20K, a 1K vertical up Al's Run, and a kids 1K, with timed races, age-category prizes, and an optional combined Double Trouble challenge.

Trail races at Bohemia Manor Farm in Chesapeake City feature 5K and 8K courses through vineyards, wooded trails and along the river, with chip timing, age group awards, finisher wine for ages 21 plus and an on-site after party with music an..

Trail races at Rendezvous Ski Trails near West Yellowstone Montana include marathon, half marathon, and 10K distances on Custer Gallatin National Forest trails. The event features chip timing, aid stations, and finisher medals.

A 5K run or walk with a 282 step climb at Baldwin Hills Scenic Overlook in Culver City that benefits the Aztlan Athletics Foundation. Registration runs from 10/10/2025 to 12/31/2025 with a $45 fee.

Experience the rugged beauty of the Wyoming wilderness at El Vaquero Loco. Run through the western landscape on technical trails to support local high school athletic programs.