Trail Running Calendar United States 2025-2026

6 Hours of Power at General Butler State Park (Recreation Center) in Carrollton, Kentucky, is a Wolf Pack Adventures endurance event. Runners complete as many 5K loops as possible within a 6-hour window, with a minimum four-loop finish to officially complete the race. The course is a single 5K loop..

Unmask Domestic Violence Community Run is a festive trail event in Sturgeon Bay, Wisconsin (5736 Walker Rd), offering 2K, 5K, and 10K options. Runners traverse Snowkarft’s private 20 miles of wooded trails, featuring rolling hills and off-the-beaten-path singletrack—terrain usually reserved for skii..

The 5th Annual Octoberfest 5K is a community running event in Haddonfield, New Jersey, starting and finishing at Maria Greenwald Softball Field. The race offers a 5K run with an updated course map and on-site parking, plus nearby downtown parking. After crossing the finish line, participants gather..

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'..

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..

Devil’s Toll Race takes place in Middle Brook, Missouri, along the Ozark Trail. The centerpiece is a 13-mile course through rugged, rocky backcountry with about 1,400 feet of elevation gain. Participants may run or hike solo or in two-person teams, with half-marathon options as well.The route climbs..

The Rugged Red Trail Half Marathon is an annual trail running event held in Slade, Kentucky, at the scenic Red River Gorge. Celebrating its 11th year in 2025, the race features a challenging 13.1-mile loop on private trails, offering runners a unique and rugged outdoor experience. Participants recei..

Whitefish Trail Blazer, held in Whitefish, Montana, is a weekend of trail running presented by Flathead Running Company to benefit Whitefish Legacy Partners and the Whitefish Trail. The centerpiece is the Blazer 50k ultramarathon on Saturday: 31 miles with about 6,300 feet of elevation gain on singl..

Mother RUCKer - 10K RUCK CHALLENGE is held in Eatonville, Washington, at Bud Blancher Trail Head (480 Weyerhaeuser Rd S). The event features a 10K ruck on a trail course, with participants including ruckers, walkers, and dogs; kids 12 and under are free. The atmosphere is community-driven and outdoo..

Now in its ninth year, the Yankee Springs Fall Festival in Middleville, Michigan, starts at Deep Lake Campground. The event offers three distances: 10K, 25K, and 50K. The 10K and 25K are rolling single-track loop courses, while the 50K is two laps of the 25K loop.The atmosphere centers on trail runn..

The Great Pumpkin Run in Washington, Missouri, is hosted at Drews Dream Pumpkin Patch, with the start and finish near the YMCA at 400 Grand Avenue. The event blends a trail run and a road race, featuring uphill sections and a unique requirement: participants carry a pumpkin for the duration. It offe..

Wild Wild West Marathon & Ultra in Lone Pine, California is the oldest trail marathon in the United States, hosted by the Lone Pine Chamber of Commerce for 46 years. The event offers 50-mile and 50K ultramarathons, plus a marathon and a 10-mile race, routing runners through the Alabama Hills and the..

The General Butler Trail Race, held at General Butler State Resort Park in Carrollton, Kentucky, offers a variety of trail running events including a half marathon, 10K, 5K, 20K relay, and a unique 6 Hours of Power endurance challenge. The courses start and finish at the park's Recreation Center, fe..

Blackout in Emmaus, PA is a rugged nighttime 10K trail race, with 1,000 feet of elevation gain over technical, mountainous terrain. The Running Kind presents a 'Lights On' edition allowing an early dusk start for those who want to begin before darkness settles, and the traditional option. The race s..

Bobcat Ridge 25k is a 25-kilometer trail race held at the Edwin L. Smith Preserve Trailhead, Guinea Road, Kennebunkport, Maine. Runners will test themselves on challenging, scenic forest trails along the preserve’s network.The event benefits the Kennebunkport Conservation Trust, with all proceeds su..

El Diablo Hundo, held at Lake Bistineau State Park in Doyline, Louisiana, offers 100 Miler, 100K, and 25K races. The course is a 10-mile loop through Louisiana trail terrain, including muddy sections, roots, and natural surfaces, with scenic views of upland hardwood forest, open water, and stands of..

CT Donut Run is a 31.5-mile charity group run in Connecticut, presented as a long, donut-filled endurance experience rather than a traditional race. The route centers in West Hartford and visits several donut stops, including locations in Newington, Berlin, Wallingford, and North Haven, finishing in..

The South Texas Ultra takes place at H.W. Lewis Ranch in Leakey, Texas, in the Texas Hill Country. The event offers multiple distances: 50K, 35K, 17K, 17K RUCK, and 5K.Runners encounter rugged trails of rocky, dirt, and grass ATV paths, with more than 2300 feet of elevation gain on the 50K and a 10...

The Lapham Peak Colorama Run/Walk is an annual fall running event held at Lapham Peak State Forest in Delafield, Wisconsin. Celebrating its 36th year in 2025, the event features 5K and 10K races on wide, well-groomed ski and hiking trails. The 5K course tours the park's middle level, while the 10K f..

Howlin' Coyote Canicross Trail Race, held in King George, Virginia (11617 Caledon Rd), offers two canicross options: a 10K Canicross and a 1-mile Wild Pup. This dog-friendly, non-profit event is part of the Friends of Caledon State Park series and supports natural resources and educational programmi..