Trail Running Calendar United States 2026-2027

Soak up Rocky Mountain and reservoir views while racing varied distances at the Boulder Rez Marathon. From 10K to the full marathon and relay, enjoy a scenic, mostly flat trail course and a festive finish with a shirt and medal.

Roxborough Ultras features 50K and 50M all trail ultramarathons in Roxborough State Park with sustained climbing, technical terrain, and big elevation gain. August is hot and dry with limited shade and spaced aid stations, so carry water an..

Tackle scenic ski area trails at Belleayre Mountain in Climb It For Climate, a community trail race offering challenging 25K and shorter 8K options. Proceeds support The Catskill Center and registration includes a zero carbon travel offset.

Summer Meltdown in San Antonio's O. P. Schnabel Park offers races from a kids dash to a chip timed half, plus volunteer then run and virtual options. Celebrate your finish with snacks and drinks at the post race rally tent.

Join the third annual Tails & Trails 5K at Independence Oaks in Clarkston for a family friendly run or walk where leashed pets are welcome. Enjoy trail scenery, a kids Cat Walk, vendors, and fundraising for local animal rescues.

Run the scenic Leadville Trail 10K on August 16, 2026 in historic Leadville, Colorado, tracing the opening miles of the LT100 course at over 9,700 feet. Enjoy a fast out and back on paved and dirt roads with aid at the turnaround and awards..

Kick off the cross country season at Epiphany Cross Country #1 on Monday August 17 2026 at The Epiphany School in New Bern. Separate 5K races for girls and boys, professionally timed for fast competition and community fun.

Join the Into the Hills Eltuck 5k, part of a four race midweek trail series at Lory State Park in Bellvue. Chip timing, series points and vintage Gnar shirts add fun, while varied valley and hill courses challenge every runner.

Tackle a rugged 10k through Lory State Park with roughly 1,700 feet of climbing and chip timed results in this midweek trail series. Grab a vintage Gnar shirt and enjoy pizza and drinks after the run.

Run the 58th Augúst, Montana's second oldest footrace, with a flat 5 km trail course around Spring Meadow Resources Pavilion in Helena. Proceeds support local high school cross country teams and the event welcomes runners of all levels.

Run Texas trails at Habanero Hundred, August 21 to 23, 2026, with distances from new Habanero 135 and 100 mile to 10K and relays. Chip timing, shirts, free photos and belt buckles for 100 mile and 100 kilometer finishers.

Challenge high elevation trails above historic Telluride with 13, 24 or 40 mile courses across alpine tundra, exposed ridgelines and mountain passes. Big climbs, epic views and true mountain running in the San Juan Mountains.

Run the Shawnee Hills Trail Races at Camp Ondessonk in the Shawnee National Forest, with distances from half marathon to 100 miles. Tackle technical single track through sandstone canyons and waterfalls and relax with on site camping.

Tackle the scenic Post Canyon Half Marathon in Hood River, Oregon, a challenging trail with roughly 2,300 ft of climbing, sweeping mountain views and creekside waterfalls. Cup free event with aid stations and finisher prize bags.

Firebird Trail Races in Windham, Maine on Aug 22, 2026 offer 50K, marathon and 13 mile courses on technical 10 mile loops through Lowell Preserve and nearby woods. Grassroots fundraiser for local trails with a wood carved medal for finisher..

Run the rugged Bristol Hills Branch on a 100K point to point ultramarathon through the Finger Lakes, mostly single track with big climbs and scenic views. With a 20 hour cutoff and UTMB and Western States qualifying status, it rewards grit.

Tackle rugged, scenic single track trails at Hyner Run State Park near North Bend, Pennsylvania with the Hyner Half offering a challenging 14 mile race plus a 7K. Field is limited to 225 qualified entrants, so expect big climbs, aid station..

Gravel Worlds Run Series brings a multi distance trail weekend to Lincoln, Nebraska with 5k up to 50k on scenic gravel and dirt roads. Expect hilly sustained climbs, self supported racing with aid stations and double and relay options.

Tackle the legendary Leadville Trail 100, a 100 mile out and back ultramarathon through the high Colorado Rockies with steep climbs, technical singletrack and alpine passes up to 12,500 feet. Expect epic views, serious altitude and belt buc..

Take on the Dark Horse Trail Series at Tryon Equestrian Center on August 22, 2026, with marathon, half marathon or 10k options across scenic looped trails and rolling climbs. Rustic camping, one stocked aid station and a friendly festival v..