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 point-to-point mountain ultramarathon near Logan, Utah covering an official route of 215 miles with about 40,000 feet of climbing, mostly on single-track and forest roads. The event is postponed and a new date has not been set.

Experience a fast and flat 12k trail race through the scenic Valley Trails of Lory State Park. Enjoy a low key atmosphere followed by pizza, beverages, and a vintage race shirt in Bellvue.

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.

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 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..

Three day mountain running weekend at Skeetawk Ski Area featuring uphill, ridge, and technical trail courses including a 12K loop and a 37K Skyrunning route with about 11,500 ft of vertical gain. Youth and vertical kilometer events are also..

RunPA Trail Jamboree at Camp Mack features a night trail race, chip timed endurance loop races and free kids runs, with on-site camping, an aid station and awards for overall finishers.

A team-based overnight trail relay at Soldier Hollow Nordic Center near Midway, Utah on August 28-29, 2026. The event covers 120 miles with substantial elevation gain and includes on-site camping and amenities.

Nighttime 5K and 10K loop runs in Downtown Fort Worth under the full moon along the Trinity River, with grassy trail sections, chip timing, finisher medals and proceeds benefiting a local Wolfdog Sanctuary.

Nighttime trail run at a private San Diego ranch on 08/28/26 with marked loops of 5k, 10k, 15k and 30k. Headlamps or flashlights required; reflective aid stations, on-site camping, tech tee and awards are included.

A Spartan obstacle weekend at Mahon Ranch near Elk Grove features a Sprint 5 km with 20 obstacles, a Super 10 km with 25 obstacles and kids races, plus team entries, volunteer options and service member discounts.

A trail-style 5K and 10K at Dirt Farm Brewing in Bluemont on August 29, 2026, with rugged terrain, steep sections, and winding paths; virtual entries available with different medal and shirt options.

Tough Mudder Chicago on August 29, 2026 at Richardson Adventure Farm features 5K and 15K obstacle runs, an 8-hour Infinity lap format, Mudder Village festival amenities, and finisher medals, shirts, headbands and drinks.

A weekend of obstacle races at Summit Bechtel Reserve on Aug 29–30, 2026 featuring Sprint, Super, Beast, a kids race, and a pre-race obstacle workshop across hilly, water‑featured terrain.

Trail half marathon and 50k on the single-track Switchgrass Mountain Bike Trail at Wilson State Park. Exposed, hilly course beside Wilson Lake with two aid stations, marked routing, awards, and finisher items for each distance.

Trail races near Mount St. Helens in the Mt. Margaret Backcountry, offering 50K, 20 mile and half marathon loops with remote terrain, ridgeline views, lakes and varied wildlife.

A timed 10-hour endurance run at Bluhm County Park on August 29, 2026 where runners repeat a 4 to 4.1 mile trail loop with hourly cutoffs, chip-based prizes, a limited-edition shirt, and a wooden medal.

A small, trail-focused ultramarathon in Westboro, Wisconsin, held on the Ice Age National Scenic Trail with 100 mile, 100K, and 50K options through the Chequamegon-Nicolet National Forest.

A 3 mile obstacle run at Phil Moore Park on August 29, 2026 raising funds for child abuse prevention. Individual and team entries are offered plus a free Kids Mud Bath for children under nine.