Seattle’s most exhilarating 10K & 10-mile experience
Overview
The Tenacious Ten is a high-energy urban run set in the heart of Seattle, starting and finishing at Gas Works Park. Whether you're a seasoned runner aiming for speed or a first-timer looking to soak in the community vibes, this race offers something for everyone.
Celebrate springtime running with two flat and scenic routes that loop through some of the city’s most iconic waterfront views. Expect enthusiastic crowds, a fun race-day atmosphere, and a tenacious spirit throughout.
Course
Flat, urban course along Seattle’s scenic waterfront
Starts and finishes at Gas Works Park
Suitable for runners of all levels
Out-and-back format with minimal elevation
Paved paths and road closures ensure a smooth run
Iconic Seattle landmarks along the way
Logistics
Swag & Medals
Finisher medal
Technical race shirt
Post-race celebration at Gas Works Park
Course support with hydration stations
Race-day energy and community vibes
Run Super Series swag
Getting There
Start & Finish at Gas Works Park in Seattle
Parking available in nearby public lots (limited — arrive early)
Public transportation encouraged
Bike racks available on site
Ride-sharing recommended for convenience
Policies
Race Policies
No refunds or deferrals
Rain or shine event
Strollers allowed in the 10K only (must start at the back)
Bib must be visible at all times
No dogs on course
Packet pickup date and location to be announced
Land Acknowledgement
We acknowledge that this event takes place on the traditional land of the Coast Salish peoples, including the Duwamish Tribe past and present. We honor their stewardship of the Seattle region and recognize their ongoing connection to this land.
About Run Super Series
Run Super Series is a dynamic and community-driven race organizer based in Washington State, offering one of the most diverse and exciting collections of road and trail running events in the Pacific Northwest. From accessible 5Ks to challenging 100-mile ultras, this race series is designed by runners, for runners, delivering memorable experiences that blend scenic courses, thoughtful race support, and signature personal touches.
Their events span iconic locations across Washington, including Seattle, North Bend, University Place, Everett, and Quincy. Participants can expect breathtaking backdrops—from Lake Union and the Snoqualmie Tunnel to the golden hills of the Washington desert and the dramatic views of Chambers Bay. Whether it’s a fast Boston-qualifier marathon, a women’s empowerment run, a scenic ultra in the Cascades, or a fun summer evening 5K, every race in the Run Super Series is crafted with care and intention.
Runners consistently praise Run Super Series events for being well-organized, scenic, and inspiring. Testimonials highlight their life-changing impact, exceptional support, and the opportunity to explore the beauty of the Pacific Northwest on foot. Whether you're chasing a PR, discovering a new trail, or running with friends for fun, Run Super Series promises to deliver your next favorite running experience.
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Disclaimer
We make every effort to provide accurate and up-to-date information on Kåduka, but details may change. Please always confirm the latest information on the official race website. See something that needs correcting? Send us a note at [email protected]