Trail Running Calendar United States 2026-2027

An inaugural trail ultramarathon in Napa offering a 50 mile solo and a two-person 50 mile relay over two long loops through Skyline Wilderness Park and Suscol Headwaters, run as a cupless event with four aid stations and limited crew access..

A 5K obstacle course at Rocky Mount Sports Complex with mud pits, 15 plus obstacles, and a one mile kids race. Proceeds support local college scholarships and registered racers receive a shirt, medal, and goodie bag.

Born To Run Ultra Marathon in Los Olivos CA on May 16, 2026 offers distances from 10 miles to 100 miles plus 3- and 4-day formats; registration opens December 1, 2025.

Experience the natural beauty of Mueller State Park with various trail distances from a 10k to 12 hour timed ultra events. Choose between traditional distance loops or a unique randomized format determined by colorful draws.

Test your endurance at the Armed Forces Endurance Run. Choose your challenge from 6, 12, or 24 hour timed distances. This event supports community charities.

Mountain trail races in Burnsville, NC offering 50K and 25K courses with significant climbing and revised routes after Hurricane Helene. The event includes mandatory shuttle service, race swag, free photos, and a strict warning that it is n..

Trail races at O'Neill Park in Trabuco Canyon, California on Saturday, May 16, 2026. Distances range from 10k to 50k; registration closes May 1 and entries are nonrefundable with a rollover option if canceled for weather or fire.

Trail races at Drake Well Museum and Park offer 2, 5, 13 and a stacked 18 mile option on the Gerard Hiking Trail, staged 90 minutes apart with awards, a five hour race limit, and proceeds benefiting Friends of Drake Well.

A family-focused running event in Buffalo Park on May 16, 2026 featuring chip-timed 10K and 5K trail races, a stroller friendly 1 mile stroll, and a free Children's Churro Chase. Proceeds benefit Hope Pregnancy Resource Center.

Obstacle course races on rolling motocross terrain in Morganton NC, featuring creek and pond crossings, a dirt bike track, and distances from 1 to 6 miles, plus elite, open, and youth Cub Crawl divisions.

Experience a wet and sandy 5k obstacle course at Pere Marquette Beach. Navigate 25 obstacles along the shoreline to support local food pantries and homeless shelters in Muskegon.

A 100 mile trail ultramarathon in the Massanutten Mountains near Fort Valley, Virginia, featuring rocky terrain, short rugged climbs with more than 18,000 feet of ascent and a 36 hour cutoff.

Silver State 50/50 in Reno offers 50 mile, 50 km and trail half marathon distances on dirt trails with significant climbing, high-elevation views and staffed aid stations.

Timed four-hour and eight-hour loop trail races at Chestnut Mountain Resort with scenic river views, looped laps, post-race music and meal, included shirt and finisher medal, and awards for mileage and costumes.

A multi distance trail event around Millpond Recreation Area near Bishop, California, featuring high altitude routes on dirt roads and single track, regular aid stations with medical support, and custom finisher medallions.

Trail races of 12.5K, 25K and 50K take place on the Superior Hiking Trail near Lake Superior in Lutsen, Minnesota on May 16, 2026. The event provides course maps, results, volunteer roles and photo and video coverage.

A spring trail race weekend in Tillamook State Forest with 50 mile, 55K and double options. Courses wind through second growth rainforest with waterfalls, stream crossings, aid stations and a post race meal.

A team event on May 16, 2026 featuring a two-hour *10K* course across a 575-acre Versailles farm with 18 checkpoints including mountain biking, ziplining, archery and canoeing. Teams compete in male, female and mixed divisions.

A forested single track loop in the Mark Twain National Forest offers a Marathon (one loop) and a near 53 mile 50 mile option over hilly terrain with stream crossings, cupless aid stations, and on course support.

Timed ultramarathon at Richfield Heritage Preserve with a 2.92 mile loop and 225 feet of gain. Multiple distances, camping, overnight aid and live tracking.