Trail Running Calendar United States 2026-2027

USATF-certified 5K, 10K and half marathon events in Lewes, Delaware with Run, race-walk, or Heavy March (15 lb pack) options, a historical exhibit, and a post-race vendor and music area supporting Wounded Warriors and homeless veterans.

Trail races of 50 mile, 50k, and 15 mile take place in the Jemez Mountains around Los Alamos, NM on May 9, 2026. The course features technical trails and high altitude and proceeds benefit local organizations.

A trail ultrafestival in Pennypack Park on May 9, 2026, offering 25K, 50K and 50M figure-8 loops on runnable single track and gravel, themed aid stations with German-style food, and German-themed awards and finisher swag.

A 6th annual 5k at Boone Hall Plantation & Gardens benefiting Southern Paws Animal Rescue, a 501(c)(3) caring for abused and neglected animals. Registration can be paid or reduced by bringing a bag of animal food.

A trail fundraiser at Oak Mountain State Park featuring a 10K, a 12 hour challenge, and a free 0.5 mile kids run. Proceeds beyond basic expenses benefit a nonprofit supporting families affected by childhood cancer.

A nonprofit 10th annual trail race at Crystal Lake Outdoor Center in Hughesville, PA on May 9, 2026, offering 5k and 25k courses across cross country trails. Proceeds support center operations and trail maintenance.

A two-day outdoor festival in Fruita, CO featuring a trail half marathon, mountain bike and gravel 50K races, guided canyoneering, clinics, kids races, and reserved camping at the North Fruita Desert Trailhead.

Trail race on May 9, 2026 at Lake Anza in Tilden Regional Park offering distances from 10K to 50K plus a free kids 50 yd dash. Courses are marked, aid stations occur every 3 to 4 miles, and the event uses a cupless aid protocol.

A trail event at Battle Point Park offering 10K, 5K and a Kids Fun Run on wooded trails. Proceeds support the Trails Connect Bainbridge Island campaign for new trail projects.

A trail running event at Independence Oaks County Park offering 2.3 Mile, 5K, 10K and virtual options, chip timing, shirts, medals and on-site packet pick-up on race day.

Run for a cause at the Trail To Recovery event in Norman's Ruby Grant Park. Choose from a scenic 5K trail run or a 1-mile walk on a course of grass, sidewalk, and gravel. Your participation supports local recovery and mental health programs..

A multi-distance trail event in Susanville, CA featuring single-track routes through meadows and pine forest, relay options, a kids mile, staffed aid stations, and a cupless policy.

A gnome themed trail race at Camp Tuscazoar with roughly 9 miles, 25k and 50k on single track and bridle trails. The course includes hidden gnomes to spot, staffed aid stations, cupless support, and a 10 hour cut off.

Popple Shoot Trail Races in Minong WI on May 9, 2026 features 10K, 25K, 62K and 87K courses on ATV trails, the Wild Rivers Trail and county roads, with multiple aid stations and age group awards.

Tackle the steep, rocky trails of Miller Mountain in Tunkhannock, PA. Choose the grueling 25k with four major climbs or the scenic but tough 5-mile option. All finishers get a custom gift and meal, with proceeds supporting local land conser..

Tejas Dirt Festival at Camp Eagle on May 9, 2026 features trail runs, ruck races, a trail run biathlon, and the King and Queen of the Hill on varied riverside and hill country courses. Events are chip timed, cupless, and well marked.

A multi event timed running event on May 9, 2026 at Linfield University Wellness Trail in McMinnville. Options range from one hour to twelve hours, plus a four loop relay and bingo lap races.

Hit the trails at John Bryan State Park on May 9 and 10, 2026, for scenic, challenging courses from 5K to a looping half marathon plus relays and a 6 hour challenge. Finish with a medal and aid stations; grab a Pack Pass for the season.

Thunderbunny Trail Races on May 9, 2026 in Strouds Run State Park near Athens Ohio offers 50K, 25K and 11K courses on mostly singletrack with varied hills, a lake loop and designated aid stations.

This 5K on the flat Lansing River Trail finishes near the Lugnuts' Jackson Field. Registration includes a race medal, T-shirt, and entry to the Beerfest at the Ballpark. The event is timed and features age group awards.