Trail Running Calendar United States 2026-2027

An urban ultramarathon in Miami on September 26, 2026, featuring a 100 mile race, a 30 mile add-on challenge, and a 50k. Courses use directional cards and checkpoints and rely on crew support while passing through Miami neighborhoods.

A 24 hour loop race on the Palmer Divide near Palmer Lake, Colorado. Runners repeat a 0.82 mile loop at 7,240 feet to compete for distance, awards and 100 mile buckles while supporting local parks.

A Last Person Standing backyard ultra near SP Crater in Flagstaff, AZ where runners repeat a 4.167 mile loop each hour until only one runner completes the final lap. The course mixes dirt trails and road with modest elevation gain.

Trail races along the Cossatot River in Wickes, Arkansas offering 12.5-mile and 25-mile options on rocky single-track with substantial elevation gain, aid stations, shuttle service for the half, and a no cup policy.

A one way uphill trail event of about 2.5 miles up Yonah Mountain with 1,650 feet of ascent. A ruck division requires 15 pounds for women and 20 pounds for men, and finishers receive a medal.

Timed running events on a 1.5 mile loop at Gallatin Valley Regional Park in Bozeman, Montana. Participants choose 24 hour, 12 hour, or 4 hour formats and count total distance with on course aid and crew support.

A looped trail event at Cannonsburg Ski Area featuring 100 mile and 50 mile ultra options with large elevation gain, plus 10K and 20K single track races; aid station and crew access each loop, participant fields are limited.

Trail loop races at Massey Meadow feature a half marathon and a 10K through Dry Fork Canyon with Flume Trail views, measured aid stations, elevation gain, and a cash prize for new course records.

A looped trail event at Welling Ridge Trails offering distances from 4 miles to 40 miles plus a 4 person ruck relay. Rocky single track, looped course, awards include buckles for longer distances and team championship belts.

An off road 5 Miles obstacle course in Saint Charles, Iowa on September 26, 2026, hosted by Contributors Breakfast Club; the local fundraiser keeps proceeds in Iowa and lets participants help design several obstacles.

A 24-hour endurance event at Bowling Green Hot Rods Baseball Park on September 26, 2026, run on a 0.31-mile concourse loop. Solo and four-person relay formats, full overnight aid station, finishers' medals, shirts and awards including a 100..

A memorial trail event in Wilkesboro, North Carolina on September 26, 2026 offering timed 5K and 10K runs, an untimed 5K walk, and a virtual option. Chip timing and RFID-tagged bibs are used and proceeds support the American Cancer Society.

A 5K trail run or walk at Patriot's Park in Greenville on 09/26/2026 focused on community support for children and families affected by childhood cancer, with registration open 03/02/2026 and a $35 fee.

A loop event at Lake Ahquabi where runners complete repeated 4.167 mile laps each hour until one runner completes one more lap than anyone else. Aid and crew areas are based at the beach shelter house near Indianola, IA.

Experience the natural beauty of the Big South Fork National River and Recreation Area with a loop trail race featuring 17.5 mile and 10K options primarily on single track terrain.

Celebrate the 50th anniversary of this classic trail race in Helena. Experience 1,300 feet of elevation gain on single track trails with sweeping views of the Big Belt Mountains and downtown Helena.

A neighborhood 5K at The Watershed School in Fairbanks on September 26, 2026 that raises funds for the Watershed School PTSA. A pancake and sausage fundraiser at the school offers a discount for runners with bibs.

A new race in Oakley, Utah on September 26, 2026, offering five distances from a full marathon to a 5k along scenic trails and mountain views. Start and finish are at Oakley Rodeo Grounds with aid stations, music, and postrace awards.

Trail races at Natural Bridge Caverns include 4, 8 and 16 mile distances, a Youth 1 mile, and Last Person Standing run and ruck on surface loops, with cave starts for regular distances, aid stations, cave tours, and a ropes course on site.

A 10 km trail loop at Deer Valley Resort in Park City, Utah, with 1335 ft of ascent to the peak and back. Entry includes a bib, T-shirt, finish necklace, swag, a 12 week training guide, and access to a post-race festival.