Trail Running Calendar United States 2026-2027

A self-timed 5 miles on a packed rail trail in Darlington, Maryland, held as part of the Harford County Running Club Dog Days of Summer Series. The course is stroller friendly with parking at Fisherman's Log and free registration.

A community tribute on August 23 featuring a 5K with digital timing, a 1 mile fun walk, a family mud run with obstacles, and a virtual 5K; proceeds support the P.H.I.L. Foundation.

The Old Ephraim 200 will take place in Logan on Monday 24 August 2026. You can run 215 miles.

A four-date midweek trail series at Lory State Park with races from 5k to 12k; the August 25 Eltuck Valley 12k is a mostly flat 12 km course with post-race pizza and beverages.

A weekly trail race series in Williston, VT offering 5 km and 2.5 km options with adult and youth categories, bib pickup and on-course water refill. Events run rain or shine and follow a posted thunder and cancellation policy.

An untimed 3.1 mile vineyard run plus a short kids run at Bishop Estate Vineyard & Winery in Perkasie, PA, featuring grass trails, a finisher's medal, onsite wine and grape juice tasting, food trucks and activities. Proceeds benefit the Hil..

A 5k trail run at Red Rock Wilderness near Silverado, CA featuring fire roads and single track, 300 feet of climbing, one aid station, a cupless policy, and no pets allowed.

A free, untimed 3 mile trail run for the local trail community with a grab bag of vintage ERS swag, limited to 250 participants and held near the San Dieguito Lagoon on August 26, 2026.

A cross-country 5K and 10K at Talon Winery in Lexington with finisher awards and a wine drink ticket; under-21 participants receive the award but not the wine. The event includes wine sales, live music, and an after-party in the tasting roo..

A three day mountain running weekend at Skeetawk Ski Area near Palmer, AK, held August 28 to 30, 2026. Events range from a 1 km youth uphill and a VK to a 12K loop and a technical 37K skyrunning course.

A weekend of trail races at Camp Mack in Newmanstown PA featuring a night 3.5 mile race, chip timed 12/6/3 hour endurance on a 3.4 mile loop, and free kids races with two course options.

Trail Soldier Hollow is a two day team relay on August 28-29, 2026 at Soldier Hollow Nordic Center in Midway, Utah. The 120 mile course averages 15 miles per runner and features ridgelines and views of Mount Timpanogos and Deer Creek Reserv..

A multi day team relay from Mount Hood to the Pacific beaches where 8 to 12 teammates share running legs over roughly 196 or 128 miles.

A nighttime 5K and 10K loop run in Downtown Fort Worth along the Trinity River under the full moon, on mostly grass and gravel with one climb per loop. Chip timing, T shirts and medals included; proceeds support a local wolfdog sanctuary.

A night trail run on private ranch trails in Alpine, California, under reflective course markers. Multiple loop distances are offered, headlamps are required, camping is available and aid stations will be illuminated.

Friday Night Lights Elon Opener is Elon's cross country season opener on August 28, 2026 in Elon, North Carolina. Women run four 1000 meter laps and men run six 1000 meter laps in an evening cross country meet.

A two-day Spartan obstacle race at Mahon Ranch near Sacramento featuring Sprint 5 km, Super 10 km, kids races, team entries, volunteer options and spectator access.

Trail event at Dirt Farm Brewing in Bluemont VA offering 5K and 10K courses over rugged terrain with virtual entry options on August 29, 2026.

Tough Mudder Chicago on August 29, 2026 at Richardson Adventure Farm offers 5K and 15K obstacle courses, an 8 hour Infinity option, and Mudder Village with food, music and finisher items.

A weekend of Spartan obstacle racing at Summit at Bechtel Reserve featuring Sprint, Super, Beast, kids races, an obstacle workshop and spectator access.