Fall Backyard Burn Trail Run - Lake Fairfax
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Fall Backyard Burn at Lake Fairfax Park
The event is a trail running race at Lake Fairfax Park in Reston, VA on Sunday October 18, 2026. Courses run on singletrack trails around the lake, with minimal pavement and several viewpoints of the water. Runners encounter a few short technical sections with rocks and roots, and the route features many short ups and downs rather than extended climbs.
Distances:
- 5.1 miles (one lap)
- 10 miles (two laps)
Elevation gain is listed as 300 feet for the 5.1 mile course and 600 feet for the 10 mile course. Facilities at the start and finish include portajons and nearby park restrooms; 10 mile runners pass the park bathrooms around mile 5.2. The race is staged from Canopy Pavilion G; parking is in the grass field in front of the pavilion and in the Water Mine Water Park gravel lot.
A supervised kids program from Little Fern Learning operates during the race morning and requires pre-registration. Program fees and multi-date discounts are published for single events and the full series.
Race rules include no in-ear headphones, visible race numbers worn on the front, outside assistance limited to within 50 meters of aid stations, no pets pacers or strollers on course, and a requirement to stay on designated trails. Finish medals are optional with a pre-order fee and on-site purchase option. Awards and post-race refreshments are provided. Visit the organization's website for the most recent information.