Trail Running Calendar United States 2026-2027

A free community trail running festival in Flower Mound, Texas on October 18, 2026, featuring a casual 5K group run, an expo with local brands and race directors, food vendors, and a raffle with prizes.

A four-race trail series in city and county parks with increasing distances and varied terrain. The races are chip timed and overall awards require completion of all four events.

Experience the scenic singletrack trails of Lake Fairfax Park with 5 mile and 10 mile race options. Enjoy a community atmosphere with post race breakfast and a dedicated program for children.

Two marked trail distances start and finish at Smith Mountain Lake State Park Beach Pavilion. Courses feature lake views, aid stations, GPX files, included park entry, and facilities near the start and finish.

A 5K trail run at Shawnee Lookout Park that follows the Blue Jacket and Little Turtle loops, begins and ends at the Waterhole Meadow Shelter, and serves as the final Dirt Days Trail Series event with series points available.

Trail marathon, half marathon and 10K on low-traffic Huntsville trails, with hooded sweatshirt, finisher medal and post-race meal included. The cupless event has fixed cutoffs and course maps are available on Strava.

A fall running event at Richardson Adventure Farm in Spring Grove, Illinois on October 18, 2026. Multiple options include a 10 kilometer course combining maze and farm sections, 5 kilometer maze and farm routes, a family one mile run, and k..

A scenic 5K trail and road run along the Red Cedar River in Williamston on October 18, 2026, with tiered entry fees, a guaranteed t-shirt for early entries, an inaugural finisher medal, and proceeds supporting the St. Louis Center.

Community trail event at Camp Barnes in Frankford, Delaware offering 6.2 and 3.1 mile runs, 1 to 3 mile family walks, and a Kiddie Color Run. Post race lunch and live bluegrass music support Mariners Bethel youth ministries.

Experience a trail run through the rolling hills of Kanawha State Forest with 13.1 mile and 7K options. This event features forest roads and wooded routes as part of the unique Cryptid Race Series.

Explore the scenic trails of 100 Acre Woods in Malta, New York. This community event on October 18, 2026 features 2k, 3k, and 5k trail runs. All proceeds support local trail maintenance.

Experience the wilderness trails of Deerfield Town Park with a variety of trail races for all ages. Enjoy a professionally timed 5K or a community run while supporting the local food pantry in your favorite running costume.

Looped trail races at Glenn Cunningham Lake in Omaha offering 5 mile, 10.5 mile, 21 mile, 50K and a 50 mile option. Two buffet style aid stations support runners and registration for 2026 is open with a 500 runner cap.

A trail race in Missoula that starts and finishes near the university, climbing multiple summits with 8,000+ feet of vertical ascent. Routes circumnavigate the Pattee Creek Watershed and include under two miles of pavement.

A themed charity run and community festival on October 18, 2026 in Downtown Roseville, CA, supporting the bleeding disorders community. The day includes a timed 5K, a one mile walk, festival food, carnival games, and a remembrance ceremony.

A trail event in Windham, ME offering a 50k made of five 6.5 mile loops and a single loop 10k. The course follows Purple, Red, and Blue trails with aid stations and volunteer support.

An off-road 50K starting at Guilford Lakes School that runs through linked woodland preserves on rocky forest road and single-track terrain. The course avoids repeated loops and recommends recent marathon-level experience.

An October trail run at the Black Hawk Unit of the Lower Wisconsin State Riverway, organized by volunteers. Proceeds support local conservation groups and the event posts results and photos after the run.

Trail and 5K races at Hillside Park on October 18, 2026, benefit a free mammography program. A kids fun run for ages 5 to 12 is included, with chili and vegetarian food and timing by Compuscore.

The 4th annual Chesterfield FALL Terrain 5K at Fenton Lane Park on October 18, 2026 features a 5K run/walk and a 1 mile Fun Dash, supports local charities, offers custom race shirts and age group awards.