07/02/2026
Save that date!
Seattle's favorite spring running tradition returns April 3, 2027
Who's coming in 2027?
The Tenacious Ten
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Kick-off Spring running with the best loop in Seattle. Run around Lake Union with hundreds of your running friends while hitting those Seattle icons!
Join us for the Tenacious 10 Presented By Oiselle. This will feature a gorgeous 10K and 10 Mile Run starting at Gas Works Park in Seattle continuing around Lake Union. The event will take place on Saturday, April 22nd.
07/02/2026
04/19/2026
Thank you for capturing the essence of our race 🔥
We can't wait to see you all at the next Run Super Series event & definitely for Tenacious 10 2027 🙌🏻
03/29/2026
We are in need of quite a few more volunteers for this week's Tenacious 10 on April 4.
It's a lot of fun and you get 50% off an upcoming Run Super Race.let us know if you have any questions.
Please consider helping out link to register to volunteer is in the comments.
03/28/2026
Only 1 week to go!
Tenacious 10 miler & 10K is almost here. Who's in?
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2101 N Northlake Way
Seattle, WA
98103