Trail Running Calendar United States 2026-2027

Join the XC Summer Series, a friendly Tuesday night 5K in Parsippany with chip timing and after race refreshments. Open to all ages and abilities, walkers welcome and affordable single night or full series pricing.

Join the Patriot Power 5K in Reading on April 29 to support Team RWB and honor veterans with a festive race at EnerSys Global HQ. Choose in person or virtual entry, earn a finisher medal, and enjoy a post race dinner and beer.

Join SHEastern States Weekend, a four day women’s running camp in Lock Haven with guided trail runs on sections of the Eastern States course plus lodging, meals and evening group activities. Space is limited to 30; registration opens Jan 4..

Run across the legendary Bonneville Salt Flats near Wendover Utah with distances from 5K to 100 Miler, including new 10K. Experience vast salt flats, mud flats and mountain islands with challenging climbs and sweeping open views.

Coyote Two Moon is a challenging multi distance trail running weekend in Ojai, California, May 1 to 3, 2026, with options from 10K to a rugged 100 mile featuring massive climbing. Field is limited to 150 runners so sign up early.

Take on the San Diego 100, a scenic 100 mile loop around Lake Cuyamaca near Julian, CA, on May 1 and 2, 2026, an official Western States qualifier for solo or crewed runners. Expect rugged single track, big climbs, a 32 hour cutoff and unfo..

Tackle the rugged Seven Devils at Heavens Gate, a mountain race weekend in Riggins, Idaho on May 1-2, 2026 with options from a 53K ultra to a 26K loop or a steep Vertical to Challenger Peak. Expect big climbs, stunning views, mandatory gear..

Experience the South Mountain Half Marathon in Lehi, Utah, a 13.1 mile paved out and back along the Jordan River Parkway with river and foothill views. Limited to 250 runners, enjoy free race photos and a local finisher medal.

Honor Dingneng Wang at this self supported marathon around Canyonside Park Driveway in San Diego. Free registration, no official aid or timing so bring your own crew or pacer and plan for a 7 hour cutoff.

Take on the Ozark's Mountain Challenge at Sam A. Baker State Park, a demanding ascent event of repeated steep climbs up Mudlick Mountain for major elevation gain. Expect rugged trails, on course support, and a welcoming challenge atmosphere..

Run scenic, rugged trails at Grayson Highlands State Park May 2 and 3, 2026 with distances from 8 mile to a full 50 mile challenge. Finishers get a beanie or hat and medal plus post race food, pro photos, and awards.

Run the Donald Dash Trail Run at Donald County Park in Mount Horeb on May 2, 2026 for scenic prairie, sandy and hilly single track trails and distances of 5 km, 15 km and a Kids One Mile Fun Run. All net proceeds fund Friends of Donald Park..

Take on TutHell 50K in Sioux Falls, a brutal but addictive 100 lap climb up and down Tut Hill that tests grit and builds camaraderie. Entry by essay and donations to charity make this an exclusive purpose driven ultrarunning challenge.

Run a scenic 6 mile rim to rim course across New River Gorge, featuring a big descent and climb and a finish at Adventures on the Gorge rim side pool. Post race catered brunch and proceeds support Active SWV programs.

Run challenging trails with lake views at Lake of the Ozarks State Park in 5 mile, 25K or a unique run plus paddle traverse. Enjoy a post race TrailFest with live music, food, vendors and camping nearby.

Run the Muddy Shoes Farm Park Challenge at Agricultural History Farm Park on May 2, 2026, completing each lap in under one hour. Choose 3 hour, 6 hour, or 10 hour challenges or marathon and 25K; volunteers get event swag.

Run the Greenland Trail Races in Larkspur, Colorado on May 2, 2026 with 50K, 25K, 8 Mile and 4 Mile options and the 2026 RRCA National 50K Championship. Scenic dirt trails wind through ponds, oak hills and offer Pikes Peak views.

Niwot's Challenge is a by invitation only endurance event near Sedalia, Colorado that prizes off trail navigation and self reliance over racing. Limited to 40 entrants, it offers routes up to 100 miles for experienced wilderness runners.

Run among the iconic red rock spires of Garden of the Gods with distances from 5K to a Double Take or 9.5 mile course. Traffic free roads and trails promise stunning views of Pikes Peak and formations like Siamese Twins and Balanced Rock.

Choose from 25K, 50K or a challenging 50 mile out and back across backcountry gravel roads through Flint Hills tallgrass prairie. Expect friendly aid station support, a tri blend finisher shirt and a memorable prairie running experience.