Trail Running Calendar United States 2026-2027

Join a friendly, informal 5 to 10k run or snowshoe on a roughly 10k course with loaner snowshoes available. Bring a spare pair to share, enjoy light refreshments, and team up for bragging rights and a shared baked treat.

Run the Occoneechee Mountain Challenge 10 mile trail race on January 25 2026 in Hillsborough NC, starting at the Historic Speedway. Tackle single track climbs, scenic Riverwalk views and finish with chili while supporting local charities.

Shake off winter with the Groundhog Grind Trail Run at Thomas Mitchell Park in Altoona, Iowa on February 1, 2026. Choose a 5K or 10K loop on scenic, ribbon marked trails that pass ponds, prairie and a red bridge, or run virtually from anywh..

Arrowhead 135 is a 135 mile human powered ultramarathon across the Arrowhead State Snowmobile Trail in Northern Minnesota, run in extreme winter cold and wild conditions. Racers may start on foot, on skis, or by bicycle for a true test of e..

Tackle a flat 3 mile loop on Jekyll Island in this 34 hour timed event with live chip timing and lap tracking from Yeti Headquarters. Finish 100 mile to earn a buckle while other distances get large medals and runners should bring a reusabl..

Run the Arches Ultra in Moab, Utah with distances from 9K to 50 mile along Arches National Park, with Moab cliff and La Sal Mountain views and dinosaur tracks. Trails vary from smooth singletrack to slickrock and sand.

Take on the trails at Carlton Preserve in Venice for the second annual Coo Wah Chobee, a single loop trail run with distances from 50k to a 5k plus a youth 5k. Enjoy mixed single track terrain, signature swag and Wicked Skin awards.

Explore Florida trail country at Forgotten Florida, a weekend of scenic runs in Christmas, Florida on Jan 31 to Feb 1, 2026. Routes from 8 mile to 100 mile cross palm groves, mud and roots and promise abundant bird life.

Embrace winter trails at Mendon Ponds Park on January 31, 2026 at Devil's Shadow Winter Trail Races, with 5 mile, new 25k, and 50k looped courses around the Devil's Bathtub. Cozy lodge aid station and friendly series vibes for all paces.

Challenge yourself on scenic singletrack at Rockburn Branch Park in the Mid Maryland Trail Festival, featuring a 50K and a 50K relay. Run six loops or join a team of 2 to 6 with options to run fewer loops and aid stations on course.

Tackle 15 km of single track trails, climbs, and switchbacks at Castlewood State Park on January 31, 2026 as part of the Big River Trail Series. Celebrate with post race BBQ, a sweatshirt and finisher medal, beer and live music.

Take on a fast, flat half marathon along the Dahlgren Railroad Heritage Trail in King George, Virginia on January 31, 2026. All finishers earn a custom medal and the race supports Friends of the Dahlgren Railroad Heritage Trail.

Run the Sean O'Brien trail race in Calabasas on Jan 31, 2026 for scenic trails and rewarding climbs across multiple distances. Choose from 30K to 100K with the 100K as a Western States 100 qualifier; register by Dec 15.

Run along the San Francisco Bay at Coyote Hills Regional Park in Fremont with half marathon, 10K and 5K options plus a remote entry. Trails, boardwalks and paved paths make for a scenic, low climb course and walkers are welcome.

Join the 10th annual Greenleaf Trail Run on January 31, 2026 at Gruber ORV Park in Braggs OK, offering 5, 10, and 20 mile trail loops over moderately technical terrain. Finishers get custom medals and top three in each race earn trophies.

Bootleg Boogie in Bootleg Canyon near Boulder City on Jan 31, 2026 offers 100 miles, 50 miles and a Half Marathon on punchy singletrack loops with big climbs and distant views of the Las Vegas Strip. Pick your distance and chase medals or c..

Run remote singletrack on the north side of the Santa Catalina Mountains near Oracle Arizona, tracing scenic sections of the Arizona Trail. Choose distances from 5K to 50 Miles on a constantly rolling course and support Arizona Trail mainte..

Join the ninth annual Frosty Fat Sass at South Mountain Reservation, a fundraiser for the South Mountain Conservancy. Choose a 5K, timed 3 or 6 hour loop or rucking division on a rugged, rocky 5K trail.

Run the BOK Center in Tulsa on January 31, 2026 with options from a one mile fun run to intense stair climbs and an extreme 15k course. Tackle arena stairs, club levels and ramps for a high energy indoor race day.

Run the HAROC at Hanging Rock State Park, with scenic ridges, rewarding climbs, and a choice of 25k or 50k distances. Expect rugged trail terrain, aid stations on course, and a spirited winter trail community.