Trail Running Calendar United States 2026-2027

Keene Family YMCA Fall Foliage Trail Races feature 5K and 10K trail courses starting and finishing at the Keene YMCA, with chip timing, age-group prizes, and proceeds supporting YMCA programs and access.

A Halloween themed community event in Aspen on October 4, 2026, with a timed 5.6K run and a 1 mile walk around Koch Park and Marolt open space. Leashed dogs are welcome and net proceeds benefit the Friends of the Aspen Animal Shelter.

Join the annual Run Stanley event at Stanley Park for a variety of trail races including a 5K K9 run and an accessible 1 mile stroll. Support local wildlife sanctuary maintenance while enjoying a community day in the park.

Experience a unique trail run through 1600 acres of former prison grounds at Laurel Hill Park. Choose between 5.4 or 10 mile distances on scenic singletrack featuring historic guard towers and open meadows.

Trail races at Fallen Leaf Lake near South Lake Tahoe featuring a half marathon, 10K, 5K and a noncompetitive half mile for children, aid stations and recycled shirts.

Experience a technical trail event in Highlandville featuring 5k, 10k, and half marathon distances. Participants enjoy a hilly course followed by a post race celebration with local craft beer and walking tacos.

A four-race trail series across city parks with increasing distances, chip timing, and cumulative awards for runners who complete all four events.

A 5K on shaded eucalyptus horse trails at Ernie Howlett Park in Palos Verdes Peninsula on October 4, 2026. In person and virtual options are available, plus a fundraising route that waives the fee with at least $100 raised for Strides in Re..

A 25K trail race in Corvallis OR on October 4 2026, part of the Corvallis Trail Series with proceeds supporting local trail work and rescue and shoe assistance programs.

Trail races in Bald Eagle State Forest offering a 13.6 mile half marathon and a 6.4 mile 10K over technical singletrack, steep climbs, stream crossings, and scenic overlooks.

Baker Lake Classic 25k on Sunday October 4, 2026 is a 25k event organized by NW Endurance Events. Registration closes October 3 and the entry fee is $80 with a race shirt offered for $25.

A 50K trail ultramarathon around Blue Marsh Lake near Reading PA with a 9 hour limit, seven themed aid stations, camping, and a four leg relay option.

Experience the scenic Nocatee Greenway Trails in Ponte Vedra Beach with race distances including 10 miles, 10K, and 5K. This event features road and trail running alongside a dedicated 5K ruck and virtual race options.

Trail runs at Jefferson Memorial Forest with an 8-mile route and a 5-mile option, cupless hydration, on-course water for the 8 miler, restroom facilities, awards for overall male and female, and a virtual option.

A community 5k and a 54 yard dash on October 4, 2026 in Glendale with an out-and-back course on the Oak Leaf Trail. Registration includes all-day entry to Milwaukee's Original Oktoberfest at Old Heidelberg Park.

Multiple race distances start and finish at Sam Lynn Ballpark in Bakersfield, featuring mixed terrain on paved and dirt trails and a notable climb on the half. Aid stations, race day services, post race refreshments and awards are provided.

An in-person and virtual event on October 4, 2026 in Gresham featuring a 5K, a kids dash for ages eight and under, and a virtual run/walk. Registration opens in April and fees vary by event.

A volunteer-run trail event in Spokane on October 4, 2026 with 5k and 10k courses on 100% dirt trails plus a free kids 1k; proceeds support Franklin Elementary APPLE Program.

The Lockport Fire Foundation presents the second annual Fire Zone 5k, a community 5k run and walk on a marked loop of the Forest Preserve trail starting at Hassert Park. Registered participants present on race day receive a t shirt and fini..

A 4-mile trail race through Irvington Woods on October 4, 2026, starting and finishing at the Irvington High School campus; rain or shine.