Trail Running Calendar United States 2026-2027

A weekend of Spartan obstacle races at Lake Elsinore Raceway on Sep 26 and 27, 2026 featuring Sprint and Super courses, kids races, Hurricane Heat challenges, and spectator access near a large natural freshwater lake.

One day across five Westmore peaks covering up to 26 miles and about 6142 feet of climb, with shuttle drop offs, staffed water and rest stations, limited entries to protect trails, and post-hike services at the NorthWoods campus.

Experience the wild beauty of the Southern Colorado Rocky Mountains at Music Meadows Ranch. Choose from several trail distances ranging from 8 miles to 104 miles along the scenic Rainbow Trail.

A community fundraiser at Westchester Lagoon on September 26, 2026, featuring 2K and 5K runs along the coastal trail to support Anchorage School District language immersion programs.

Experience the mountain ridges and meadows of Gunnison National Forest at the Crested Butte Ultra. Choose between 35K, 55K, and 50 mile distances on single track trails with stunning fall foliage.

Experience desert style single track and forest roads with views of the Collegiate Peaks in Buena Vista. Choose between 50k or 30k distances as part of the multi sport 14er Fest.

A 24 hour trail ultramarathon at Hinson Lake in Rockingham NC on a USATF certified 1.5032 mile loop featuring electronic timing, night chem light markings, a 500 runner cap and awards for 24 hour and 100 K finishers.

Experience the rolling hills and dense forests of Pennsylvania at the Marilla Reservoir. This event features off road courses ending at a historic covered bridge with proceeds supporting local trail maintenance and development.

A 3.1 mile trail event at Ascot Hills Park in Los Angeles with chip timing and views of Dodger Stadium and the Hollywood sign. Proceeds support the Wilson High School Fire and Police Magnet Cadet Program and Ascot Hills Park.

An annual September trail running event at Lake Chabot Marina offering 100k, 50 mile and marathon races with UTMB Index status and Pacific USATF Grand Prix inclusion for the 50 mile race.

A looped trail ultra at Clarkco State Park offering 50K, 25K and 12.5K distances, camping options, one aid station per loop, RFID chip timing, finisher medals and race shirts.

A point to point 26 miles trail race in the Slide Mountain Wilderness near Shandaken, NY, featuring nearly 7,000 feet of vertical gain and technical, rocky terrain. Proceeds support Run Wild, Inc and several race services are provided.

A long running cross-country meet at Camp Rilea near Seaside, Oregon, offering multiple marked courses for middle and high school runners, chip timing, team lodging, awards, and live drum corps performances over a weekend of activities.

A charity 5K at Coldstream Park/Legacy Trail in Lexington on September 26, 2026 benefits NICU babies, with an in-person chip timed 5K, a kids 1/4 mile dash, and a virtual 5K option with mailed shirts.

Tough Mudder Colorado at Fort Carson on September 26, 2026 offers 15K and 5K obstacle courses with multiple obstacles and finisher items. Spectator passes, group packages, VIP options and volunteer programs are available.

Trail runs at Deception Pass State Park offering 5 mile, half marathon and full marathon courses that visit Rosario, Lighthouse and Lottie Points and cross the Deception Pass Bridge. Aid stations are on course and the event is cupless.

An urban open road ultramarathon in Miami offering 100 miles, a 130 mile extension, and a 50k. Runners follow directional cards and checkpoints and must plan crew support for navigation and logistics.

A 24 hour loop endurance run on a 0.82 mile circuit atop the Palmer Divide in Palmer Lake, Colorado at 7,240 feet. Top overall finishers receive awards and early 100 mile finishers receive buckles; part of fees supports local parks.

A backyard ultra near SP Crater in Flagstaff, AZ where competitors run a 4.167 mile loop each hour with about 150 ft of elevation gain until only one runner completes a loop. Water and a personal 10 foot by 10 foot space are provided.

Trail run at Cossatot River State Park near Wickes AR offering 12.5 mile and 25 mile distances on rocky single track with notable elevation gain, aid stations, finisher medals and event shirts available.