Tenacious 10
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Tenacious 10 - event overview
The Tenacious 10 takes place on April 4, 2026, at Gas Works Park in Seattle, WA (2101 N Northlake Way, 98103). The event offers two race distances and is USATF sanctioned. Packet pickup is scheduled for Friday, April 3 at Gas Works Park; the pickup time is listed as TBD. The event provides a zip-up hoody, a finisher medal, and free event photos for participants. Registration fees listed are $68 for the 10-mile and $63 for the 10K, with a noted price increase after December 31, 2025.
- 10 mile
- 10K
Course and logistics
Both courses start and finish within Gas Works Park and run around Lake Union. The route highlights include Lake Union Park, views of the Space Needle, and crossing the Fremont Bridge. Runners proceed down Eastlake until reaching Fairview and will use Westlake Ave. N. or nearby sidewalks, bike lanes, and trail depending on permit conditions. Roads are closed for the event to support the race course. Free parking is available at Gas Works Park, and participants are advised to allow extra time to find parking. Visit the organization's website for the most recent information.
