Trail Running Calendar United States 2025-2026

Join the San Clemente Santa Run on December 6, 2025 for a festive 5K or fun run along the beach, starting at the Pier Bowl. Celebrate with music, an auction and dinner while supporting Lily's Lighthouse and epilepsy research.

Join the Jingle Jog 5K and Santa Stroll on December 6 for a festive trail 5K and family friendly one mile fun run. Dogs welcome, prizes for best dressed and team spirit, with proceeds benefiting the local child advocacy center.

Don an ugly sweater and join the Ugly Sweater XC 5K in Neffsville for a festive run and walk supporting the Manheim Township Cross Country Booster Club. Holiday music, hot chocolate, kids fun run and prizes add to the cheer.

Tackle scenic trails around Occoquan Reservoir at the Fall Backyard Burn Trail Run in Fountainhead Regional Park on Dec 7, 2025. Choose a 4.8 or 10.5 mile route, enjoy course support and post race food while supporting Homestretch.

Run the iconic Hunter S. Thompson Fear & Loathing in San Francisco on December 7, a free grassroots single loop that winds past city landmarks and finishes at Twin Peaks. Choose 50 mile or 50K distances and help support Shoes For Runners.

Run the Topo Trail Marathon at East Fork State Park on December 7, 2025 with quarter, half and full options on a 6.55 mile singletrack loop. Enjoy aid stations, a race tee and a finisher medal on a scenic course.

Take on scenic, rocky single track through Pine Mountain at FDR State Park with 19 or 40 mile options for trail lovers. Organized by local runners, this long running event raises funds to support FDR State Park and Georgia State Parks.

Hit scenic, technical trails at the Dirty South Trail Races in Knoxville on December 7, 2025, featuring a half marathon, 10K and Kids Trail Mile through Ijams Nature Center and Ross Marble Quarry. Early registrants may receive a special tec..

Tackle scenic single track trails at Elfin Forest in the Keepin' It Rural 5K and 10K, where runners get chip timing and a festive post race party. Enjoy a tech shirt, finisher medallion and a beer while supporting Escondido Creek Conservanc..

Run a timed 50 miles or 50 kilometers in Prospect Park on a scenic looped course near Lincoln Road. Community aid with Skratch Labs hydration and a potluck style aid station keeps you fueled across the day.

Tackle pristine coastal trails at Guana Reserve in Ponte Vedra Beach with 50K and 12K options plus team relays. Enjoy scenic salt marsh views, sandy singletrack, and a festive winter day on the trail.

Celebrate the 20th anniversary of Wakeem/Teschner Nature Preserve with a scenic 5k trail run or family 1 mile walk at Resler Canyon in El Paso. Support land conservation while enjoying beautiful desert trails and community fun.

Join the Tidewater Strider Dismal Swamp in Chesapeake VA on Dec 7, 2025 for 50K, marathon, half marathon, relays and a walkers option on scenic out and back looped trails. Aid stations, finisher apparel and post race pizza and beer await.

Tough Cookie 8K at Sunken Meadow State Park offers scenic cliffside views of the Long Island Sound, festive cookie stops and a post race cookie fest. All paces welcome and proceeds support local charities.

Celebrate the season at the Angry Cow Holiday Trail Run in Panama, Nebraska, with 2, 4 and 6 mile options along wooded paths, creek crossings and converted rail trails. Beanies, snacks and awards included, and a new rucking division adds a..

Tackle scenic, rugged trails in Helen, Georgia with a half marathon or 10K featuring big climbs and technical sections that welcome walkers. Finishers earn a beanie, pint glass, and medal, with special awards for the top three overall.

Spirit of Syllamo returns December 13, 2025 near Norfork, Arkansas at Misty Mornings with a new venue and rugged, rocky trails. Choose 100 mile, 35 mile or 10k routes through remote forest and creek crossings for a true endurance trail test..

Beast of the East 100 at Crowders Mountain near Kings Mountain NC offers distances from Half Marathon to 100 Miler on scenic but rugged singletrack with serious elevation gain. Robust aid stations and great community support make it a class..

Tackle rugged trails and steep climbs at the 0 Degree Winter Trail Festival in Pittsford, NY, a fundraiser supporting local trail projects. Choose 5, 10 or 15 mile routes for a cold season trail challenge with grit and scenic views.

Join Pigtails Run in Maple Valley on December 13, 2025 for 50K, marathon or half along scenic Cedar River and Green River trails. Low support Fat Ass style event; finishers get a Pigtails medal and patch.