Fall Backyard Burn Trail Run - Fountainhead
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Event overview
The Fall Backyard Burn Trail Run - Fountainhead takes place Sunday, December 7, 2025, at Fountainhead Regional Park in Fairfax Station, VA. The event is part of a multi-race Fall Backyard Burn series produced by EX2 Adventures. Two race options are offered:
- 4.8 miles (approx. 450 feet elevation gain)
- 10.5 miles (approx. 950–1,000 feet elevation gain)
The 5 mile course is a single loop. The 10+ mile option adds a longer out-and-back section on the Bull Run Occoquan Trail.
Course, rules and extras
The course uses hiking trails and some old dirt roads along the Occoquan Reservoir. Race rules include no in-ear headphones, no pets, no pacers, and no baby strollers on the course. Race numbers must be worn on the front and visible. Aid station assistance rules and trail etiquette are specified; racers must notify officials if they drop out.
During registration there is an opportunity to donate to the local nonprofit Homestretch. A supervised kids program is available the morning of the race; pre-registration and a separate fee are required. Race swag varies by event and a finish medal is available as an optional add-on. Visit the organization's website for the most recent information.