Mason District 10k
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2026 Mason District 5k & 10k
This event takes place on August 29 at Mason District Park, 6621 Columbia Pike, Annandale, VA. Points earned in the races count toward the Year‑Long 5k, 10k and Back of the Pack series and toward the Summer Series.
Distances
- 5k
- 10k
The course uses a combination of trail and paved paths. The 5k is an out‑and‑back and the 10k is the same out‑and‑back route run twice. There are some hills and a few technical trail sections; course maps are published for review.
Participants receive a finisher’s coin, a technical event shirt and chip timing. T shirts are guaranteed for runners registered before August 19; extra shirts may be available afterward on a first come basis. Registration fees are posted by distance and include an early rate through August 15 and higher rates after that. Prices increase by $5 on race morning.
A virtual race option is offered. Walkers are welcome. Water stations are placed approximately at mile markers 0.3, 1.55 and 2.8 on the 5k, and at 0.3, 1.55, 2.8, 3.4, 4.65 and 5.9 on the 10k; some stations include Gatorade. Restrooms are located near the turf soccer field.
Awards are given to the top three men and women overall and to first and second in standard age groups. Back of the Pack is a series category for runners who average above the listed Back of the Pack time and is not a cutoff. Live results and final results with series points are published after the race. Packet pickup is available at the event and race day registration is offered; t shirt sizes cannot be guaranteed for race day registrants. Volunteers are asked to arrive about 60 minutes before the first race. Visit the organization's website for the most recent information.
