Trail Running calendar near Great Falls 2026-2027

Club-based 10-mile competition at Howard Community College where runners score points for RRCA clubs, with awards by club and a 2h10m cutoff.

Riverside 8k and 16k in Potomac on February 28, 2027, with courses along the Potomac River and the C&O Canal path running north; nearby waterfalls and virtual participation options are available, and walkers are welcome.

An annual eight hour timed trail event on a 5.5 mile loop at Little Bennett Park in Clarksburg, MD with mostly single-track trails.

The Elizabeth Furnace 50 km is a technical mountain trail race in the Massanutten range covering 30.5 miles and about 6,400 feet of ascent. Aid is limited with staffed stations near 10 and 22 miles so runners must carry personal supplies.

St. Patrick's Half & Marathon on March 14, 2027 in Georgetown features scenic courses along the Chesapeake & Ohio Canal and a Boston qualifying full marathon.

A Last Runner Standing backyard ultra in Lorton, VA on March 20, 2027, using a 4.167 mile (6.7056 km) hourly loop with a limited 65-runner field, chef-supported aid, and entry by Ultrasignup waitlist.

A spring trail 50K at Susquehanna State Park with two identical loops, about 4,300 feet of climbing and several stream crossings, supported by aid stations and volunteers.

A 14 mile untimed point to point trail run along the Dahlgren Railroad Heritage Trail that starts at one Sheetz and finishes at another. The event features unusual aid station snacks and practical finisher swag.

Genesee Valley Ultra is a timed loop trail event at Genesee Valley Outdoor Learning Center in Parkton, MD. Runners choose 24 hour, 12 hour, or 6 hour formats to complete as many laps as possible on a 2 mile loop, with chip timing and awards..

A 50 mile trail race near Clifton, Virginia on April 4, 2027, run over forested, rolling terrain in spring. Entry opens October 1, 2026; the race has a 13-hour limit and a $125 entry fee.

A turtle themed 5K at Hopkins Farm Brewery in Havre De Grace raising funds and awareness for the Susquehannock Wildlife Society. The trail race includes wooden participant medals, costume prizes, and an after party with live music.

Run to Remember in Sykesville uses a 5.25 mile loop at Piney Run Park for 50K, 25K, a 5 miler and an 8 hour challenge. Fees include park entrance, a custom ice bandana and a commemorative mug.

A cross country 5K at Red Shedman Farm Brewery on the Linganore Winecellars grounds, with a technical quarter zip and one pour for finishers and on-site picnic and tasting options.

A 100 mile ultramarathon on the C&O Canal towpath in Knoxville, MD with start and finish at Camp Manidokan. The course is one 40 mile loop plus two 30 mile loops, with multiple aid stations and extensive riverside scenery.

A last person standing endurance race in York, PA where runners repeat hourly loops until one remains. Entries include a designated parking and crew area, an event shirt, and a certified distance card.

A trail running event at the Agricultural History Farm Park in Derwood, Maryland, featuring lap based 3, 6, and 10 hour Challenges and a conventionally timed marathon and 25K. Volunteers receive the same finishers' swag.

Trail Demon 5k & 10k in Bluemont VA features scenic, hilly trail courses with technical terrain around the property; runners can enter in-person 5 km or 10 km races or choose virtual options with medal or shirt.

Flat marathon and half marathon along the C&O Canal Towpath at Fletcher's Cove in Washington, DC. The mostly crushed gravel out and back course offers shaded river views, aid stations, and monetary prizes for top finishers.

The SCA 5K is a cross country 5 kilometer race on natural terrain held within Shalom Dutchfest. It offers multiple age divisions with medals, ribbons, and cash prizes, and early registrants receive a complimentary t shirt.

Shenandoah Sky in Bentonville, Virginia on May 15, 2027 offers a Mountain 25K with 1700+ feet of climbing, an 8 Mile trail race, and an untimed 8 Mile hike through river, valley, and forest single track.