Trail Running calendar near Williamsport 2026-2027

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.

A trail event in Huntingdon, PA on May 2, 2027 featuring a figure eight course around Greenwood Furnace State Park. Distances include a 1/2 marathon and a 12K, with registration closing March 17.

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.

A 24 hour Backyard ultra on Mason Neck with a 4.167 mile loop, 100 mile limit, single aid station, and a field capped at 100 runners.

Backyard-style ultra in Knoxville MD with repeating 4.167 mile laps every hour until one remains, plus a concurrent 1 mile Mortals edition.