Trail Running Calendar United States 2025-2026

Set in Auburn, California, just off Highway 80 in Gold Country, the Auburn Half Marathon is a trail-running event offering three distances: a half marathon, 12K, and 5K. Runners depart from Overlook Park, head toward Robie Point, cross No Hands Bridge, climb toward Cool, and loop back to finish at O..

The Color Me Mutt 5K & 1 Mile Color Walk/Run is an annual, pet-friendly event held at NASCAR SpeedPark Smoky Mountains in Sevierville, Tennessee. Participants can choose between a timed 5K color run or a 1-mile fun run/walk, both featuring non-toxic color powder stations along the course. Dogs are w..

Star City San Bruno Mountain Half Marathon & 5K, organized by the Excelsior Running Club, takes place in Brisbane, CA, on the San Bruno Mountain trails. The course is 93% on trail with about 2,400 feet of elevation gain, including a single-track downhill and sweeping views of the Pacific, Bay, and S..

The S'more Fun Trail Run takes place at Mirror Lake State Park in Baraboo, Wisconsin, offering a variety of distances including a Mini-Marshmallow Mile for kids 11 and under, 5K trail walk and run, 10K trail run, and a half marathon trail run. The course features scenic views along Mirror Lake, sand..

The CAMC Foundation WeCANClimb 5k Trail Run and 2.5 Mile Trail Hike is held at Kanawha State Forest, located seven miles south of Charleston, West Virginia. This event offers participants a scenic outdoor experience through one of the state's popular hiking and biking trail networks. The 5k trail ru..

Rocktoberfest 5k Trail Run is a 5k trail run and walk held in Roscommon, Michigan. The course runs along the Tisdale Triangle Pathway, described as a beautiful 5k route through Roscommon. The event welcomes runners and walkers alike, offering a family-friendly atmosphere.The registration fee is $25..

Trails by Moonlight: Hunter’s Moon is a nighttime trail running event hosted by Fit Foundation at Arkansas Bend Park on the Colorado River near Lake Travis, Texas. The format emphasizes the primal challenge of lasting through the night on wooded trails, with stocked aid stations supplying hydration,..

Autumn Harvest Marathon, Half-Marathon, 12-Hour Endurance Challenge, 5K and 10K is a Lake Travis trail-running festival held in Marble Falls, Texas. Runners traverse scenic fall landscapes along Turkey Bend and Arkansas Bend Park with rolling terrain, a mix of single-track and wider trails, and swee..

Charm Field & Trail Challenge takes place in Millersburg, Ohio. The event offers a 5K and a Kids Fun Run on Saturday, October 4, 2025. It’s described as not your average road race, with a mixed course that winds through pasture fields, wooded areas, crop fields, and rural roads, creating a rustic, t..

Head For The Hills! is a scenic, family-friendly fall race held in Moreland Hills, Ohio, at Forest Ridge Preserve and the Lang Pavilion in the Chagrin River valley. The event features a 5K run on a recently resurfaced, out-and-back course along Chagrin River Road with gently rolling hills, plus a 1...

The Haunted Heritage Trail Fun Run / Hero Walk in Dyersville, Iowa, offers a festive and spooky running experience with multiple events including a 5K Haunted Heritage Trail Fun Run, a 10K Trail Run, and a 1 Mile Hero Walk. Participants are encouraged to wear Halloween costumes as they navigate a 3...

Michael J. Pitney Farm Run takes place at Pitney Meadows Community Farm in Saratoga Springs, NY. The event features a 5K community run and a Youth Fun Run (.5 miles).The course is a mixed-surface, grass and stone-dust trail that is primarily flat with a few gentle rollers, and has no road crossings...

The Cuyamaca 100K is an ultramarathon held in Cuyamaca Rancho State Park near Julian, California, about an hour east of San Diego. The race features a challenging 100-kilometer course composed of three distinct loops starting and ending at Camp Cuyamaca. The first loop covers 31.5 miles on the park'..

The Franciscan Rhythms Trail 5K Run & Walk is an annual event held at the Franciscan Life Process Center's Lowell Campus in Lowell, Michigan. Participants can choose from a 5K run, 5K walk, kids fun run, or a virtual trail run/walk. The course winds through a scenic 230-acre campus featuring deciduo..

The 2025 Outdoor X12 Endurance Run (OX12) takes place in Dayton, Ohio, at 1385 Harshman Road. The course is a flat 2.7+ mile loop with 4% bike path and 96% grass/trail double track. Produced with Five Rivers Metroparks and the Subaru Outdoor Experience, it is a time-based event awarding finisher med..

The Crooked Loops Trail Run takes place in Clarkston, Michigan, at Independence Oaks, a scenic location known for its vibrant fall colors in October. The event offers three trail running distances: 2.5, 5.5, and 8.5 miles, all starting and finishing at the same spot. The 2.5-mile race features a sin..

True to the Brew Trail Run/Hike Half Marathon is a 13.1-mile point-to-point race in Spartanburg, SC, along the Croft Passage of the Palmetto Trail. The course runs from Cedar Springs Baptist Church to Croft State Park and is described as moderate with some hills and technical sections, best for expe..

Girdwood Marathon 2025 takes place in Girdwood, Alaska, starting and finishing at the Alyeska Day Lodge. The event offers a Full Marathon, Half Marathon, Juniors Half Marathon, and a 5K Trails Race. The trail-oriented course winds through more than 30 trails in the temperate rainforest, including Wi..

The Naturalist Trail Race in Franklin, NC, part of Outdoor 76’s Fall Celebration, offers 25K and 50K trail events along the Bartram Trail from Wallace Branch to Wayah Bald. The 25K features over 5,500 feet of climbing; the 50K more than 8,500 feet, making it a grueling ascent and descent through rug..

The Model 5K faMily Trail Run/Walk in Rome, Georgia marks its fifth edition on the Model High School campus. The 5K course blends wooded trail and paved road, starting and finishing at Woodard Tuggle Stadium. Runners head down Barron Rd to Model Middle School, traverse a half-mile wooded loop, conti..