Trail Running calendar near Seven Valleys 2026-2027

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.

Trail races at Lums Pond State Park with timed 12 hour solo and relay formats plus 24 km and 12 km lake laps; chip timing, age graded results, aid stations, and finisher sweatshirt and hats.

A technical trail 10K at Black Hill Regional Park with rocky and rooty terrain. The race is part of a low key series, free for club members and available to non members for a fee with on site bib and chip pickup.

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.

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..

A trail event at Patapsco Valley State Park with in person and virtual 50k and 25k options, event swag, aid stations, and a finishers mug or medal.

Scenic 5K through vineyard and farm at Rocklands Farm Winery with chip timing, age group awards, and a post-race wine tasting with live music. Walkers and children are welcome and a one hour course time limit applies.

A single-loop 25K trail race in Ridley Creek State Park on October 25, 2026, with about 1,800 feet of climbing, three aid stations, a five-hour time limit, and prizes for top finishers.

Experience a mix of twisty singletrack and open farm field running in Germantown. This late autumn trail event offers three distances and a festive post race atmosphere at the historic Button Farm.

Experience a 50 mile trail race through the scenic Seneca Greenway and Muddy Branch trails in Maryland. This event features forested single track terrain and small stream crossings for dedicated distance runners.

Experience an off-road race weekend at Yeager’s Farm & Market featuring 4 and 10 mile trail runs. Enjoy a local atmosphere with post-race beer and bagels and earn a unique long sleeve tech shirt.

A community 5K trail run and 1.4 mile walk in Newtown Square that raises funds for an entrepreneurship endowment at UC Berkeley, with age-group awards, participant apparel, food, music, and family activities.

Run Through the Grapevine is an 8K cross country race at Linganore Winery in Mount Airy, Maryland on November 8, 2026. The course runs through vineyard rows and adjacent hop yards, and all finishers receive one free winery tasting.

Trail races of 50K and 20K at Rosaryville State Park near Upper Marlboro, MD. Courses run on a 9.5 mile perimeter trail through woods and meadows with aid stations, drop bags, and a strict no-headphones policy.

A one day trail festival at Independence Park on November 15, 2026, offering multiple distance races, 3 hour and 6 hour lap events, and a 2 mile walk. Live music, food trucks, and local vendors support East Vincent Parks.

A 5K cross country at Herring Run Park on November 15, 2026, featuring mixed surfaces and an XC style start. Entry is free and donations support a college scholarship or Friends of Herring Run Parks.

A 48 hour out and back ultramarathon inside Sideling Hill Tunnel covering just under 160 miles. A Toll Ticket system limits exits and shifts emphasis to psychological endurance and strategic planning.

A 25K trail race in Queen Anne Maryland on November 21 2026 featuring mostly single track, runnable hills, three stocked aid stations, awards for top finishers, and no rain date.