Fairfax
Trail Running Calendar near Fairfax 2026-2027
Explore the top trail runs near Fairfax for 2026-2027! We've gathered 77 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
March 2027
Scenic, flat half and full marathons along the Chesapeake and Ohio Canal in Georgetown with chip timing, finisher medal, technical shirt, and a Boston qualifying full marathon option.
Test your limits in Lorton at this elite backyard marathon featuring dedicated day and night loops. With a limited field of 65 runners and a chef supported aid station, it is the perfect venue for a personal best.
April 2027
A 50 mile trail race near Clifton, VA in early April, run on forested, rolling trails with a 13 hour cutoff; entry opens October 1, 2026.
A Georgetown race on the C&O Canal offering 5k, 10k and half marathon distances with chip timing, medals, technical shirts and a virtual option.
May 2027
MoCo CARES Charity Race in Gaithersburg, MD features 10K and 5K cross country courses, a paved 1 mile fun run, and a kids Trike-A-Thon supporting Comfort Cases and Covenant Life School.
A flat, out-and-back marathon and half marathon on the C&O Canal Towpath at Fletcher's Cove on May 1, 2027, with mostly crushed gravel and river views.
A Mother’s Day running event in Georgetown with scenic flat 5 km and 10 km courses along the C&O Canal, chip timing, awards, series points, and a virtual option.
Scenic 5k, 10k and half marathon on the C&O Canal in Georgetown with chip timing, medals, technical shirts, a virtual option, and series points.
A 24 hour Backyard Ultra on Mason Neck near Lorton, VA with hourly 4.167 mile loops up to 100 miles, a single aid station, and a 100 runner limit.
Run a scenic out and back half marathon or 5K on the flat gravel paths of the C&O Canal in the heart of Georgetown to benefit Operation Turbo.
Scenic 5k, 10k and half marathon at Great Falls, MD along the Potomac and C&O Canal with chip timing, medals and a virtual option.
June 2027
Nighttime trail ultrarun at Prince William Forest Park offering 50 mile and 25 mile options, strict cutoffs, required lights and mandatory hydration.
A hilly, scenic trail race at Button Farm in Germantown offering 6k and 12k options with chip timing, race series points, and a virtual participation option.
August 2027