Trail Running Calendar United States 2026-2027

Trail races at Long Hunter State Park outside Nashville with Half Marathon, Marathon and 50K routes that circle Couchville Lake and use the Bryant Grove trail and cliff loop. The course mixes dirt singletrack and paved greenway.

Mountain trail event near Rainbow, Oregon offering 50K and 20K routes with multiple summits, extensive climbing, aid stations, shuttles, drop bags, and postrace food.

Mud Factor AMARILLO is a 5K mud and obstacle run at Bowers MX in Amarillo Texas on October 10 2026. It offers adult and KIDZ family waves, requires a signed waiver and adult photo ID, and charges a spectator fee.

Farmdale Trail Run is a multi distance trail event at Farmdale Reservoir near East Peoria, IL on October 10 and 11, 2026. Distances range from 10K and half marathon up to 100 mile with camping, aid stations, and on course support.

Trail runs of 10K and 23K through singletrack and dirt roads in Danby State Forest with views from the Thatcher Pinnacles. The course features marked turns, aid stations, and varied elevation and footing.

Cedar City Uphill Ultra is an inaugural trail ultra in southern Utah on October 10, 2026. Runners complete three loops of the "C" trail on 100% dirt with about 7,500 feet of climbing between roughly 6,000 and 8,200 feet.

A chip timed 5K in Keystone, Iowa on 10/10/2026 where participants wear flag belts and encounter costumed zombies who try to pull flags. Proceeds support Keystone First Responders and Benton Girl's Wrestling.

A 12.4 mile loop up to the Mount Diablo summit and back in Clayton, California, featuring about 4,000 feet of ascent and descent and a 5 hour cutoff. Entry includes a shuttle, raffle entry, and a unique finisher item.

A timed trail event at Rothwell Park where participants complete as many one mile loops as possible within a chosen 3, 6 or 12 hour category; entries are available as solo runs or three person team relays and proceeds support Special Olympi..

A late-season trail running event on Antelope Island near the Great Salt Lake offering multiple distances and scenic desert ridgelines. The 2026 program adds a 75K to Frary Peak and a 10 mile singletrack loop around Bridger Bay.

A dog friendly charity 5K at Overton Park benefiting Dogs 2nd Chance, with in-person and virtual options, finisher medals, age-group awards, and specific rules for canine participants and leashes.

Trail races in October near Canadice Lake, Hemlock NY, with a 5K point-to-point, a 15K out-and-back, and a full marathon featuring technical climbs and mixed terrain. Proceeds support local trail maintenance.

A 5K trail run on wooded, hilly camp trails in Bedford, Indiana on 10/10/2026; proceeds fund scholarships to send children to camp. All finishers receive a medal and top male and female receive awards.

A castle themed looped running event at Krug Park on 10/10/2026 to 10/11/2026 offering 5k and 10k options plus an extended challenge with medals. Most proceeds benefit St. Jude Children's Research Hospital and a local nonprofit.

Trail races in Columbus, Indiana on October 10, 2026 offering 10K and 5K distances. Online registration and a course map are listed for the event at 13550 Bellsville Pike.

A community 5K and 1K kids race at Kilgore Creekside Trail that raises funds for the Kilgore ISD Education Foundation, with packet pickup the day before, prizes, and a non-racing supporter option.

A fall point to point trail race in Babcock State Park covering 15K with about nine miles of trail and a short road section. The course follows Mann's Creek Gorge and features rhododendron tunnels, waterfalls, cliffs and scenic overlooks.

A trail running event at Backbone State Park in Dundee, Iowa, on Saturday, October 10, 2026, organized by Backbone Lake Friends, offering a 4.3 mile Original route and a 10K Lake Loop with stated difficulty levels.

A trail event around Briones and San Pablo Reservoirs offering 35K, half marathon, 10K and 5K on single-track and fire roads with varied scenery, aid stations, and a Start and Finish at the San Pablo Reservoir Visitors Center.

A free, fatass-style off-trail run near Foresthill, CA with 25 and 50 mile options, heavy climbing, route finding, and a 50-person limit; organizers maintain a waiting list that has historically admitted everyone.