Trail Running Calendar United States 2025-2026

Otter Creek in Brandenburg, KY, is a scenic trail running event offering marathon, 16-mile, and 8-mile distances on a singletrack loop course. Runners enjoy views along the creek, rolling hills, and soft pine needle trails. Aid stations are fully stocked every 4-5 miles, supporting participants thro..

Woodside Ramble, hosted by Inside Trail Racing, takes place at Huddart County Park in Woodside, CA. The event offers 10K, Half Marathon, 35K, and 50K distances through the forested slopes of Huddart and Wunderlich Parks, with streams, moss-covered redwoods, and panoramic ridgelines along Crystal Spr..

Seward Solstice Run takes place at Seward Park in Seattle, WA, offering 4.2-mile and 10k trail options as the fourth event in the Winter Trail Series. The loop stays largely in the forest on a peninsula, inviting runners to enjoy the park’s Magnificent Forest of Western Red Cedar and Douglas Fir, wi..

The Lookout Mountain Trail Race, held at Covenant College atop Lookout Mountain, Georgia, features challenging courses with stunning views. The event offers three distances: a 50-mile ultra, an 18-mile race, and a demanding 10K. The 50- and 18-mile courses share much of the route, traversing exposed..

The Paramount Ranch Trail Runs, held in Agoura Hills, California, offer a variety of race distances including 50K, marathon, 30K, half marathon, and 10K. Set on scenic trails within the historic Paramount Ranch, the event provides runners with a challenging and picturesque course. The race atmospher..

Desert Solstice Track Invitational is an ultrarunning meet on a 400-meter all-weather track at Central High School in Phoenix, Arizona. It centers on two distances, 24 hours and 100 miles, attracting competitors by invitation or qualification, with a cap of 25 entrants. The looped course changes dir..

The Peace River 100 Miler is an ultramarathon held at Mosaic Peace River Park in Bartow, Florida. The course features a challenging 10-mile loop combining equestrian trails, sandy paths, rolling grass, and limestone roads. Runners face a 36-hour cutoff to complete the 100-mile distance, with aid sta..

Placerville's Holiday Jingle & Mingle Run takes place on the scenic El Dorado Trail in historic Placerville, California. This festive event offers multiple race distances including a half marathon, 15K, 10K, 5K, mile, and a kids run, accommodating runners of all ages and abilities. The course featur..

The Holiday Hustle in Chattanooga, Tennessee, is a festive trail running event held in the scenic Black Creek subdivision near Mt. Aetna. Featuring approximately 3.7-mile (5K) and 7.4-mile (10K) courses, runners tackle new trails on Aetna Mountain with about 600 feet of elevation gain per loop.The 5..

The Dirty December Trail Run, held in San Diego, California, is a festive holiday trail running event featuring multiple race distances: a full marathon, half marathon, 10K, and a unique 6-hour hill climb challenge. The course includes significant elevation gains—approximately 3,500 feet for the mar..

Charleston Itty Bitty 50 is a 50-mile, self-supported, point-to-point race in Mount Pleasant, SC. The route starts at West Ashley Greenway and travels through Lowcountry, crossing the Ashley River Bridge, around the Citadel and Hampton Park, across the peninsula, over the Ravenel Bridge, through Mou..

Bad Santa Trail 5K takes place at Addison Oaks County Park in Leonard, Michigan. The course blends dirt and blacktop trails with rolling hills, offering a festive 5K run or walk through winter scenery. Trail conditions can include snow, ice, or mud, so participants are encouraged to wear trail shoes..

Located in Memphis, Tennessee, Moccasin 24 Hour Run invites participants to run as many miles as they can within a 24-hour window on a 4-mile loop at the Wolf River Trails. The event features a family-friendly 4-mile run for kids with a guardian, plus 24-hour and relay options. The start/finish area..

Round the Bay Relay and Ultra is a 36.8-mile race around Choctawhatchee Bay on Florida’s Emerald Coast, encompassing Fort Walton Beach, Destin, Niceville, Valparaiso, Shalimar, and surrounding areas. The 15th annual event begins at The Island, the host hotel and new starting line, offering two optio..

Jupiter Ridge Sand Spur is a winter ultramarathon in Jupiter, Florida, set in the Jupiter Ridge Natural Area, a protected coastal scrub dune site in Palm Beach County. The 9th edition offers Lunacy 30k Night Run (four 4.5-mile loops, about 18 miles with ~1,000 feet of dune climbing), Lunacy 50k (day..

Brazen Racing’s Almost New Year’s Eve is a trail-running event at Lake Chabot in Castro Valley, California. Runners may choose from a Half Marathon, 10K, or 5K, with hikers and walkers welcome. The race navigates Lake Chabot’s scenic trails, delivering a festive, outdoor atmosphere as participants c..

Rattlesnake Mountain Challenge takes place at Huffaker Hills Trailhead in Reno, Nevada. The event offers a 5k race and a Virtual 5k, both all-trail courses through the Huffaker Hills area. The course is described as entirely trail-running, offering a scenic, nature-friendly atmosphere.The race is US..

Icicles on the Moon 7 Miler is a night trail race in Lock Haven, Pennsylvania, at Zindel Park near the caretakers house. The event offers a 7-mile main race and a 5K option, both using local trails around the reservoir. Runners must wear a headlamp and be prepared for winter conditions. The 7-mile c..

Mo Big Butt 50 K is a South Carolina ultramarathon run by the Runner From Hell community. In its 32nd edition, about 25 starters tackle a 50‑kilometer course on a familiar local route, with self-timing and no aid. Parking is typically at the organizer’s yard, and the course is kept by volunteers and..

The Summit Showdown is a challenging trail running event held in Dacula, Georgia, at Little Mulberry Park. Scheduled for December 28, 2025, it offers two race distances: a 10 Mile course with approximately 1,400 feet of vertical gain and a 5K featuring around 500 feet of elevation gain, including a..