Trail Running Calendar United States 2026-2027

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.

Continuous loop endurance race at Eddie D. Jones Park in Keithville, LA. Runners complete repeated 3.1 mile loops to reach either 40 miles or 50 miles within a 12 hour time limit, with a centrally stocked aid station.

A 3.1-mile (5K) loop at Eddie D. Jones Park on dirt and grass trails. Runners complete as many 5K loops as they choose, with a central start and an aid station at every lap.

A charity running event in Solon, Iowa featuring a timed 5K and a Monster Mile, with all proceeds to the Arthritis Foundation to support pediatric rheumatic disease awareness.

A Halloween themed 4 mile trail run and hike at York River State Park on October 10, 2026. The new trail features single track, river views and rolling hills, with finisher medals for all and a two hour time limit.

A community 5K in Wichita Falls that runs through the historic district, beginning at Temple of Praise and finishing at Pueblo Boxing. Free and paid registration options include race items and support Pueblo Boxing’s youth programs.

A trail race in south Knoxville on October 10 offering a 50k and a 7 Miler across varied singletrack and technical rock, with nearly 4,000 ft of climbing and aid stations placed along the route.

A 12-mile out-and-back to Tesuque Peak in the Santa Fe National Forest, The Big T marks its 40th running on October 10, 2026, with proceeds benefiting Wings of America and a stated $5,000 fundraising goal.

A trail race in Gonzales Canyon Open Space with 10 Mile, 10K and 5K courses. Start and finish are at Solana Ranch Park and the 10 Mile and 10K include the locally known Puke Hill.

Tour de Essex on October 10, 2026 at Essex Park in Rochester MN features a trail 7k, a road 10k, and an Essex Challenge for runners who enter both. All event profits support trail maintenance.

Lap the Lake at Melvern Lake Marina on October 10, 2026 features gravel and pavement bike, run and ruck routes with rolling hills and shoreline views. Distances range from a 3 mile bike up to a 50 mile gravel course.

A backyard ultra on the Tushar Mountain trails at Eagle Point Resort where runners complete a 4.167 mile loop each hour. Entry is tiered with a cap at 200 runners and awards and giveaways for finishers across multiple ultra levels.

A community run and family walk on October 10, 2026 in Pottstown, PA featuring a 5K, a 10-mile route that crosses Douglassville Bridge, and a roughly 1-mile family loop along the Schuylkill River Trail.

A multi-distance trail event in Speedway, Indianapolis using the full B&O Trail. Distances include 50K, 25K, 10K and 5K on a course the organizer describes as flat and fast.

Laliik is an annual trail race on Rattlesnake Mountain organized by Runners of the Sage. It offers several distance options and raises funds for the Rattlesnake Slope Preserve, including support for year round porta potties at the trailhead..

Lake Rhodhiss Trailfest in Valdese, NC on October 10, 2026 offers three hour, six hour and twelve hour loop events on a roughly three mile course with trail and crushed cinder greenway. Food, vendor space, and occasional live music are plan..