Trail Running Calendar United States 2026-2027

Backyard ultramarathon at Waters Farm with a 4.167 mile hourly loop, a 4.2 mile community run, a free kids fun run, and a full festival.

A women's trail half marathon in the Marin Headlands on October 24, 2026 featuring a new 13.6 mile course, 2,156 feet of climbing and coastal views of the Pacific and Golden Gate Bridge.

Field Fest features a 5K trail run and a kids one mile fun run at the University of Mississippi Field Station with food trucks, music, science activities, and fundraising for the University Research Foundation.

A community fundraising event in Newnan featuring a 10K, 5K and 1-mile fun run to support the Piedmont Newnan Fitness Center; proceeds help expand local fitness and wellness programs.

A fall event at Warlick Family YMCA with a 5K trail run and a 1 mile fun run on the Sytz Family Trail System plus a family friendly party zone.

An evening community event in Sebastian combining a 5K on the rail trail with a haunted trail and trunk or treat, raising funds for counseling and peer support for local first responders.

A costume 5K and 1 mile fun run through the woods of Poricy Park on October 24 2026 raising funds for 180 Turning Lives Around.

A trail race weekend at Hueston Woods State Park on October 24 and 25, 2026, with distances from 5K to 50K, a 6 hour event, and multi-loop courses on mixed terrain. Participants receive medals, bibs, aid stations, and published results.

A cross-country meet at Radke Martinez Regional Shoreline on October 24, 2026 with three 4.1 mi races over grass, dirt, and path terrain.

A Halloween-themed race day at Pacific Community Park featuring youth and community 2k–5k courses on grass and compact trail, with medals and holiday prizes.

A nighttime trail event on the Lawrence River Trails offering 5K and 10K loop courses with themed spooky elements, required personal lights, aid stations, wooden finisher medals, and family-friendly age rules.

An October fundraiser offering a global virtual challenge plus an in-person event at San Francisco’s Ferry Building. Multiple distances from 5K to 50K are available; some courses are unmarked and maps are provided. Proceeds support the Brea..

A community 5K in Massapequa Park on October 24, 2026 featuring a scenic course through Massapequa Preserve, awards, post-race food and live results.

Halloween themed trail event at Turtle River State Park with solo and team multi hour lap races and a single-lap about 10k on October 24 and 25, 2026.

Trail run at Conway Robinson State Forest in Gainesville, VA offering 5 km and 10 km distances plus virtual options with medals and shirts.

A fall event at Allerton Park featuring a 5.7 mile trail run, a 2 mile nature walk, and a virtual 5.7 mile option. The riverside course has roots, ruts, and sharp turns, with awards, costume prizes, and park donations.

A trail event at Muscoot Farm on October 25, 2026: a five-mile race plus two kids races, kids medals, and Farm Bucks for finishers.

A park-based running event at Draper Park offering distances from a Kids Dash to a chip-timed half marathon, a pre-race costume contest, aid stations, post-race music and awards.

Trail races at Bear Creek Lake Park on Oct 25 2026 featuring 5 km, 15 km, a 5+15 double and a Kids 1 km. Mostly dirt single and double track with steep climbs, marked courses and included postrace items for adult distances.

A Halloween themed 5K trail race at Arrowhead Golf Course in Milton VT on October 25, 2026. Pre registration fee is $15 and the event is open to runners 12 and older with awards for top male, female, and non binary finishers.