Logo

Capital Backyard Ultra

Lorton, United States • 28 Mar 2026

The Capital Backyard Ultra is a challenging endurance running event held at Meadowood Special Recreation Management Area in Lorton, Virginia, near Washington DC. This Silver Ticket race features a unique format where participants run a 4.167-mile loop every hour, starting on the hour, continuing until only one runner remains. The event supports a small field of up to 60 runners, fostering a supportive atmosphere with experienced staff and volunteers. Known as a "dress rehearsal" for the Big's Backyard Ultra, it offers a $1,000 prize and a special finisher’s award. The race emphasizes endurance and strategy in cooler late-March conditions. Visit the organization's website for the most recent information.

United States Virginia Lorton

Race information

Website Registration
4 mi
4.167 Mile Loop
Visit the organization's website for the most recent information.
Trail runs nearby

Leopold's Preserve 10k

Broad Run - 27 mi from Lorton

The Leopold's Preserve 10k is a trail running event held at Leopold’s Preserve, a 380-acre nature conservancy in Haymarket, Virginia. The course features mostly flat, dirt paths with some roots, offering a scenic and natural running experience. The 10k route is an out-and-back course with a detour o..

VHTRC Women's Half Marathon

Fairfax Station - 8 mi from Lorton

The VHTRC Women's Half Marathon will take place in Fairfax Station on Saturday 13 September 2025. You can run between 7 and 13 miles.

Adventure Trail Run

Triangle - 12 mi from Lorton

The 12 Hour Adventure Trail Run takes place at Prince William Forest Park near Triangle, Virginia. This challenging event features a 6.5-mile figure-eight loop course on 100% trail terrain, including single track and fire roads, with approximately 650 feet of elevation gain per loop. The course offe..

Full Distance 10k

Triangle - 12 mi from Lorton

The Full Distance 10k and 5k is a scenic trail race held at Locust Shade Park in Triangle, VA. Participants can choose between a 5k or 10k course, with the event featuring chip timing, finisher medals, and technical event shirts. The course includes trail segments with some roots and hills, and wate..

Fall Backyard Burn Trail Run - Lake Fairfax

Reston - 18 mi from Lorton

The Fall Backyard Burn Trail Run at Lake Fairfax Park in Reston, VA, offers runners a scenic trail experience featuring a beautiful lake and extensive singletrack trails. Participants can choose between a 5.1-mile course with 300 feet of elevation gain or a 10-mile option consisting of two laps. The..

Halloween Horror 10k

Gainesville - 21 mi from Lorton

The Halloween Horror 10k is a trail running event held at Conway Robinson State Forest in Gainesville, Virginia. The course features a loop through forest trails with some technical terrain and minor hills, with the 10k consisting of two laps of the 5k route. The event welcomes both runners and walk..