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Capital Backyard Ultra

Name: Capital Backyard Ultra
Start: 2025-05-24
End: 2025-05-24
Location: Lorton

Lorton, United States • 24 May 2025

The Capital Backyard Ultra is a unique endurance running event held in Lorton, Virginia, designed for a maximum of 60 participants. The race features a 4.167-mile loop that starts every hour, continuing until only one runner remains. Participants are supported by experienced staff and professional chefs, ensuring they receive the necessary care and nutrition throughout the event. The competition serves as a preparatory race for the Big's Backyard Ultra and offers opportunities for runners to qualify for the Individual World Championships. The event emphasizes camaraderie and pushing personal limits, making it a challenging yet rewarding experience for all involved. Visit the organization's website for the most recent information.

United States Virginia Lorton

Race information

Website Registration

4 mi

4.167 Miles

Visit the organization's website for the most recent information.

Trail runs nearby

Sunday Feb 2

The Great Frosty Forest Marathon

Dumfries - 11 mi from Lorton

The Great Frosty Forest Marathon, taking place on February 2, 2025, offers a range of running events including a 5k, 10k, half marathon, and full marathon, all set in the scenic Prince William Forest Park. Participants can earn points towards various year-long series and enjoy a chip-timed experienc..

Sunday Feb 9

Manassas Battlefield Trust 10k

Centreville - 14 mi from Lorton

10 km

The Manassas Battlefield Trust 10k is a scenic running event taking place at the historic Manassas National Battlefield, with the start and finish at The Winery at Bull Run. Participants can enjoy a trail run that includes cross-country paths, dirt trails, and boardwalks, while also earning points t..

Saturday Mar 1

Paradise Springs 10k

Clifton - 10 mi from Lorton

10 km

The Paradise Springs 10k is a challenging trail running event held at Hemlock Overlook Park, featuring a scenic course with significant elevation changes and technical sections. Participants can enjoy a glass of wine from Paradise Springs Winery post-race, along with a finisher medal and a technical..

Sunday Mar 2

Spring Backyard Burn Trail Run - Wakefield Park

Annandale - 8 mi from Lorton

5 mi

10 mi

The Spring Backyard Burn Trail Run at Wakefield Park is part of a series of trail running races in Northern Virginia, featuring 5 and 10-mile courses. Set in a scenic location near the Capital Beltway, the event offers a mix of single-track hiking trails, doubletrack paths, and shallow stream crossi..

Saturday Mar 8

MCRRC Seneca Creek Greenway Trail Marathon

North Potomac - 27 mi from Lorton

26 mi

50 km

The MCRRC Seneca Creek Greenway Trail Marathon & 50K is a running event scheduled for March 8, 2025, in Gaithersburg, Maryland. Participants can choose between a marathon and a 50K race, making it suitable for various levels of endurance runners. The event is organized by the Montgomery County Road ..

Saturday Mar 8

Perfect Day 50K Loudoun

Sterling - 23 mi from Lorton

Backyard Ultra

5 km

The Perfect Day 50K is an exciting endurance running event held at Massanutten's Western Slopes, where participants run a 5K every hour for 10 hours. This unique challenge allows individuals and teams to compete, with options for alternating loops or completing consecutive hours. The course features..