Trail Running Calendar United States 2026-2027

Trail races at Huddart Park, King's Mountain and Bear Gulch offer measured distances from a 50 yard kids dash to a 50K, with fees listed per distance and registration opening November 11, 2025.

A mountain trail event in Steamboat Springs offering 50k, 16 mile and 5 mile courses with high-elevation climbs, cupless aid stations, and limited crewing at Rainbow Saddle. Proceeds support trail maintenance.

Tanri Lake Race in Miramonte, CA features relay teams, a 10-hour individual challenge and a 10K on looped courses near 6,000 ft. Entries include a Tanri hat and Saturday dinner; individual runners can earn Western States raffle tickets.

Trail races at Scott County Park near Long Grove IA offering 50K, 10 Miler and 5 Miler courses on mixed dirt and grass trails. The 50K is three laps of a roughly 10 mile loop with aid stations and specific crew and pacer rules.

A community run on Table Rock Trail near Boise that follows an approximately 3.8 mile round trip course with 900 feet of climb. Proceeds support scholarships for Idaho students and the LESS Society mission.

Trail runs and walks of 5K, 10K and 25K through Phillips Creek, Turnpike and Palmers Pond State Forests near Belmont NY, featuring rolling woods, creek crossings and mixed trail and gravel sections, hosted by IMPACT Friends.

Trail races at Lewis and Clark Trailhead near the Missouri River offering 5-mile, 8-mile, and half marathon courses using the Clark and Lewis loops. Cup-free event with aid stations, a reusable SpeedCup at pickup, parking at the Weldon Spri..

A free, one-day community trail running festival in Los Angeles on August 29, 2026 with a group run in 5K and 10K options, an expo with vendors and race directors, food, and a raffle showcasing local running resources.

A backyard ultra in Bussey, IA where runners complete repeated **4.167 mile** laps each hour up to a 12 hour cap; the last runner to complete an extra lap wins, and all others receive results by distance or laps.

Trail races at Mt. Airy Forest in Cincinnati include 5K, 10K, a 13.1 Miles half marathon and 30K. Finishers get medals, half marathon and 30K include shirts, and the event awards series points across the ATR season.

A community trail event at the Arapahoe County Fairgrounds on 08/29/2026 with a 5K run, a family 5K walk that allows leashed dogs, and a kids 1 mile plus demonstrations, vendors, and a pancake breakfast.

A muddy mix of cross country running and obstacles in Lewiston on August 29, 2026. The event can be run competitively or enjoyed as a casual mud run and includes a Mini-Mudder for children 10 and under.

Experience the Midland City Forest trails by day or night at the 10th annual Red Moon Trail Run. Choose from various distances marked by LED guides on a flat loop course with professional timing and finisher medals.

Ocean State Ultra is a loop trail event at Big River Management Area in West Greenwich, Rhode Island offering 100 mile, 12 hour and 6 hour races. The course uses 10 mile loops with trails, short pavement sections, and staffed aid stations.

Island loop races at Angel Island State Park with sweeping bay views; a 10K single loop and a Half Marathon that does two loops, limited to 400 participants and requiring ferry transport.

Trail races at Sunset Bay State Park near Coos Bay on August 29, 2026 include a half marathon, 15K, 4 mile trail and 1 mile beach fun run on a hilly coastal course with aid stations and awards.

Multiple distances are held in Katy Texas on August 29 2026, including 5K, 10K and a half marathon. Courses use short out and back loops, there is a 3 hour 30 minute time limit, and registration is online only.

Spartan Stadion in Philadelphia on August 29, 2026 features a stadium obstacle course with a 5 km race and 20 obstacles plus a kids race. The course runs through steep stairs and narrow concourses inside a South Philly sports arena.

A night trail run at Estero Llano Grande State Park with 5k, 10k and 10 mile looped courses plus youth and kids options. Medals for finishers, awards for top three overall per distance, two aid stations, and a cupless policy.

Experience the largest climb in GBF history at Mount Washington in New Hampshire. Choose between ten and twenty mile routes while carrying a twenty pound load through significant elevation gains.