Trail Running Calendar United States 2026-2027

Night trail races at McDowell Mountain Regional Park with 25K, 10 Mile and 5 Mile courses run under headlamps. The event includes aid stations, drop bags, on site medical support, and a cupless race policy.

Trail ultramarathon event in Brownstown, Indiana offering 10 Mile, 50k, 100k and 100k relay courses on a rugged, clockwise trail with live tracking, aid stations, indoor crew facilities and camping options.

Trail runs in McDowell Mountain Regional Park offering 5 distances from 5 miles to 50 miles on desert single track, marked courses, aid stations, chip timing, drop-bag service, and a Charity Beer Garden supporting trail volunteers.

Krampuslauf brings a Krampus-themed running event to Dartmouth Skiway in Lyme, New Hampshire, with 5K and 10K loops and a 9 hour 10K lap challenge. Finishers receive medals and lap runners collect pins and a 50K medal.

A trail race at Ray Roberts Lake offering 4M, 10M, 20M and 50K distances on single track and some technical terrain. Runners must carry personal hydration and aid stations are cupless.

Trail marathon and half marathon in Amicalola Falls State Park near Dawsonville GA on December 5, 2026. Courses feature extensive singletrack, two fully stocked aid stations, repeated climbs on the Appalachian Approach Trail, and free race..

Late-season trail ultramarathon near Springfield MO on December 5 and 6, 2026, run as repeated 2 mile loops returning to base camp. Multiple distances, on-site camping, an aid station at base camp, electronic timing, and finisher awards.

Looped trail ultras in Prince William Forest Park offering 50K, 100K and 100 mile options on well-marked single-track with staffed aid stations and set time limits; entry is limited and the 100 mile requires a recent 50 mile finish.

A 28k trail run in Fremont Canyon at Irvine Regional Park featuring about 3800 feet of elevation change and four aid stations. The course runs on fire roads, is cupless, and participants are asked to carry personal hydration.

Trail running event at Hanging Rock State Park on December 5, 2026, with 50k and 25k routes on technical forest trails and notable elevation gain. Organized by Tanawha Adventures with aid stations on both courses.

Experience an exclusive trail event at the Harry S. Frazier Scout Reservation featuring looping courses through Kentucky forest and a runner's village by John Barr Lake with distances from 5K up to 100 miles.

A multi-distance trail event at Calero County Park in San Jose featuring single-track, hills and varied terrain. Aid stations, drop-bag service for the 50K, free parking and support access at Rancho Cañada del Oro are provided.

A multi-distance trail event at Hitchcock Nature Center offering 100 mile, 101K, 50 mile and half marathon loops with three staffed aid stations per full loop. Proceeds support Hitchcock Nature Center and the local trail system.

Ray Miller 50/50 is a set of trail races at Point Mugu State Park in Malibu on December 5, 2026, offering 50 mile, 50K and 30K distances. Registration opens April 1 and a waitlist is available.

Multi-distance trail event in Middleburg, FL on Dec 5 to 6, 2026 featuring a scenic 7.2 mile loop, cupless aid stations with hot food, campground campsites, published cutoffs for each distance, and a buckle for 100 mile finishers.

Experience one of the fastest trail races in the world on the flat and smooth loops of Brazos Bend State Park. Choose from distances ranging from a kids 1K to a 100 mile Western States qualifier.

Experience a cross country style trail race through the Timber Pointe Nature Center at Lake Bloomington. Choose between 4K and 8K loops or a three hour endurance challenge while supporting local nature conservation.

A running event in Willis on 12/05/2026 featuring a Family 5K and a Last Man Standing race where runners repeat 5K laps and must complete each lap within 50 minutes until one runner remains.

A winter trail run at Redmond Watershed Preserve on December 5, 2026 offering 5 mile and half marathon distances. Wide groomed trails, shuttle parking, on course aid for the half marathon, and a Winter Wonderland costume contest.

Three 50 mile trail ultras on the Arizona National Scenic Trail make a season long challenge where each race must be finished within 15 hours. Finishers receive event swag and a custom garment, and certain groups are eligible for registrati..