Tenacious 10

APR
4
2026
Tenacious 10 in Seattle on April 4, 2026 offers a scenic 10K and 10 mile loop around Lake Union with start and finish at Gas Works Park. The event includes chip timing, a finisher medal, a long sleeve shirt, and free race photos.
Sat 4 Apr 2026
10 miles 10 kilometers

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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
10 mi
10-Mile
10 km
10k