Trail Running calendar near Washington 2026-2027

Trails 4 Miles at Sherando Park on September 26, 2026 features a mixed-surface four-mile trail race, an untimed one-mile out-and-back on a paved path, and a new 5.3 mile mountain bike time trial, with proceeds to the I’m Just Me Movement.

Cancer Warrior 5K on September 26, 2026 is a community running event supporting cancer research. The day includes an after party at Independent Brewing, raffle items from local sponsors, and a ghost runner option for remote participants.

A 10 miles trail race in Holtwood, PA, over rocky, hilly trails with stream crossings and scenic overlooks. Chip timed, with aid stations, a strict 2.5 hour cutoff to mile 7, and one way bus transport to the campground start.

An annual community 5K run and walk at Agricultural History Farm Park in Derwood, Maryland on September 27, 2026, organized by MD District 15 Democratic Caucus. Offers adult and youth entries plus a free youth option with an accompanying ad..

Experience the full reservoir trail system on this thirteen mile course in Fredericksburg. Runners navigate flowing singletrack and five distinct climbs totaling over nine hundred feet of elevation gain through scenic wooded terrain.

A 110-mile trail ultramarathon in the Massanutten range with about 22,300 feet of elevation gain, a 48-hour limit, required second-half crew support, and multiple staffed and unattended aid stations.

Trail canicross races at Caledon State Park offer two distances, allow leashed dogs, and provide a reusable speedCup; entry fees support Friends of Caledon State Park.

A 12 hour trail event in Prince William Forest Park on a 6.5 mile figure eight loop, featuring varied single track and fire road, two aid stations, and a limited field.

Fall Harvest 5k is a trail 5 km race at Claude Moore Park in Sterling, VA on October 3, 2026. The event includes an in-person 5K and several virtual entry options, and published fees include mandatory charges; promo codes are not accepted.

Trail races at Glenroy Preserve on October 4, 2026 offering 5 mile, 25K, and 50K loops with mixed and technical terrain, multiple creek crossings, four aid stations, chip timing, and post-race refreshments.

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.

A trail event at Pohick Bay Regional Park on October 4, 2026 offering 5 km and 10 km courses plus virtual participation options. Walkers are welcome.

Experience a unique trail event at Milkhouse Brewery in Mount Airy featuring a 5 mile race and timed ultra challenges. Complete as many loops as possible over four or eight hours on this scenic farm course.

A community trail event on October 11, 2026 at Bretton Woods Recreation Center in Darnestown, MD offering a 5K trail run and a 1 mile walk. The event raises funds and awareness for addiction prevention, education, and support.

Participate in a 10 km run through the scenic Black Hill Regional Park in Boyds. This low key event offers a straightforward racing experience for both club members and the general public in a natural park setting.

The Annual Boulder Dash at Pinesburg Quarry in Williamsport, MD on October 17, 2026 offers three distances : 5 miles, 5K and 1 mile, and the quarry will be closed during the event for safety.

Timed trail event on a 3.48-mile loop in Shenandoah River State Park with 3-, 6-, 12-, and 24-hour options, on-course aid, awards, and required lighting for night segments.

A scenic, flat 5K and 10K at Bluemont Park in Arlington on October 17, 2026. Walkers and strollers are welcome and virtual entry options include medal and shirt choices.

Experience the scenic singletrack trails of Lake Fairfax Park with 5 mile and 10 mile race options. Enjoy a community atmosphere with post race breakfast and a dedicated program for children.

GPS Big Gunpowder Trail is a 5.25 mile trail race at Gunpowder State Park in Kingsville on October 18, 2026. The course includes a steep start, downhill and single track sections, and entry is donation based with race day registration avail..