Articles

Belgian Ultrarunner Karel Sabbe's Record-Breaking Pacific Crest Trail Run Showcased in New YouTube Documentary

Explore Karel Sabbe's record-breaking Pacific Crest Trail run in a riveting documentary. Jour..

Trail Running: How it Can Help Reduce Stress and Anxiety

Trail running is an effective way to reduce stress, anxiety, and improve physical and mental he..

Trail Running vs. Road Running: Which One Is Right For You?

When it comes to running, there are two primary options to choose from: trail running and road..

OSS/CIA 50 Mile Night Run

Name: OSS/CIA 50 Mile Night Run
Start: 2025-06-14
End: 2025-06-14
Location: Triangle

Triangle, United States • 14 Jun 2025

The OSS/CIA 50 Mile Night Run is a unique endurance event taking place in Prince William Forest Park, Virginia, on June 14, 2025. This race honors the historical significance of the park as the training ground for the Office of Strategic Services (OSS), the precursor to the CIA. Participants will tackle a challenging 50-mile course, consisting of a 25+ mile loop run twice, primarily on single-track trails. The event also features a night marathon option, allowing runners to experience the trails under the stars. Aid stations are strategically placed throughout the course, and crews are permitted only at the start/finish line for safety reasons. Visit the organization's website for the most recent information.

United States Virginia Triangle

Race information

Website Registration

50 mi

50 Miler

25 mi

25m

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

Trail runs nearby

Saturday Feb 1

ICY-8 Spotsylvania, VA

Spotsylvania Courthouse - 28 mi from Triangle

13 mi

8 hr

The ICY-8 event in Spotsylvania, VA, is an exciting trail running competition that features an 8-hour adventure trail run and a new HALF MARATHON+ option. Set against the scenic backdrop of Lake Anna State Park, participants can choose from various loop courses, including 8.0 miles, 4.7 miles, and a..

Sunday Feb 2

The Great Frosty Forest Marathon

Dumfries - 1 mi from Triangle

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 - 21 mi from Triangle

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 Feb 15

Dahlgren Trail Half Marathon

King George - 21 mi from Triangle

13 mi

The Dahlgren Trail Half Marathon is a scenic running event taking place on February 15, 2025, along the 16-mile Dahlgren Railroad Heritage Trail in King George County, Virginia. This flat, out-and-back course offers participants a chance to enjoy the natural beauty of the area while competing for ca..

Saturday Mar 1

Paradise Springs 10k

Clifton - 16 mi from Triangle

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 - 21 mi from Triangle

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..