Tenacious 10
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Tenacious 10 : Seattle road races
The Tenacious 10 is a road race held on April 4, 2026 at Gas Works Park in Seattle, WA. The event offers two measured courses that loop around Lake Union and return to Gas Works Park. The organizer presents the courses as flat and scenic.
The route passes Lake Union Park, provides views of the Space Needle, and crosses the Fremont Bridge. Course directions note a path down Eastlake to Fairview and sections along Westlake Ave. N, using sidewalks, bike lanes, and trails for portions of the route.
Timing features include mile splits, live tracking, and printed finisher cards. Registered participants receive a long sleeve shirt, a finisher medal, and free professional race photos. The event is USATF sanctioned.
Packet pickup is scheduled for the day before the race at Road Runner Sports Seattle, with additional pickup available on race morning. Free parking is listed at Gas Works Park; participants are advised to allow time to find a spot and walk to the park.
Distances: Visit the organization's website for the most recent information.
- 10 mile loop around Lake Union, start and finish at Gas Works Park
- 10K loop around Lake Union, start and finish at Gas Works Park