Trail Running Calendar United States 2026-2027

Explore the best trail runs in the United States for 2026-2027! Our updated list features 4128 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

Night Wolf is a fourth annual trail event in Kansas City offering a family friendly 5 km and a night 10 km that requires a headlamp on the return. There is a combined 15 km option plus awards and postrace refreshments.

August 2026

Tough Mudder Indiana at CERAland Park on August 1, 2026 features 15K and 5K obstacle courses across woodland and farmland, finisher items, spectator village options, group packages, volunteer roles, and Spartan Hurricane Heat events alongsi..

Obstacle-course races at Tryon International Equestrian Center on Aug 01–02, 2026 feature horse-trail terrain, red clay hill climbs, creek beds, multiple obstacles, a pre-race workshop, kids races, and spectator access.

A 100-kilometer loop near Oakridge, Oregon on mostly single-track trails with climbs to Fuji, The Twins, and Maiden Peak and views of Waldo Lake. The event used a lottery and offered an optional Trail to Zero carbon contribution.

Experience high elevation trail running in the mountains of Fairplay Colorado. This event offers three distances ranging from a half marathon on forest roads to technical ultramarathons through remote wilderness terrain.

Hood Hundred is a 100 mile mountain trail race on Mt Hood staged at Mt Hood Meadows. The lollipop loop course includes 17,300 feet of ascent and descent, is a Western States qualifier, and has a 34 hour cutoff.

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.

A trail race circling Mt St Helens with 50K and 25K options over lava, boulder and forest terrain. The 50K requires prior 50K completion and specific mandatory safety gear.

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..

Multi-distance trail event on Blue Hill Mountain near the coast of Maine. Courses range from 5k to 50k with aid stations and drop bags for longer races, and proceeds benefit local conservation groups.

A trail race at Twin Creeks Farm in Valparaiso, IN on August 1, 2026 offering 18 mile, 9 mile and 4 mile courses over tree-covered single-track with creek crossings. The event features finisher awards, youth pricing, and fee assistance opti..

A multi-distance trail running event in Aspen, Colorado, held on mostly dirt trails with substantial elevation gain. The race centers at Rio Grande Park and takes place alongside a park festival that includes live music and food.

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.

Tushars Ultras in Beaver, Utah on August 1, 2026 offers 100K, 70K, marathon and half marathon mountain courses at high elevation with technical single track, substantial climbing and mandatory safety gear.

A combined trail running and horseback endurance event in Burgettstown, PA where runners and riders compete on the same course from a 10k fun run to 50 miles, on single track, gravel and meadow terrain; equestrian entries are AERC sanctione..

Experience a scenic mountain race through the pine forests of the San Bernardino National Forest. Run alongside the lake and onto forest trails with distances including a 5k, 10k, and Half Marathon.

Experience high altitude racing at Taos Ski Valley with technical trail runs reaching over 11000 feet. Choose from steep vertical scrambles or scenic mountain loops across a weekend of rugged alpine competition.

Trail races at Bohemia Manor Farm Winery featuring *5K* and *8K* courses through vineyards, riverfront and wooded trails, chip timing with live results, finisher wine glass and an on-site after party with music and food.

Experience a trail run through the Custer Gallatin National Forest at the gateway to Yellowstone National Park. Choose between marathon, half marathon, or 10K distances on scenic mountain trails.

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.

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