Sat, Apr 3, 2027

Tenacious 10

Seattle, WA

Registration openAnnual since at least 2024
10 Miles10K

Entry is $64 now and rises to $69 after Nov 16, 2026, so registering before then saves $5.

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About the Tenacious 10

The course loops Lake Union, starting and finishing at Gas Works Park. It passes Lake Union Park, crosses the Fremont Bridge, and at one point the Space Needle is in view. The route is flat throughout, so most of the mental work is just keeping pace rather than watching for hills.

Chip timing includes mile splits and live tracking, so people following along remotely can see where you are on the course. Professional race photos are free, which means you are not deciding at the finish whether a photo is worth buying.

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Distances & Start Times

10 Miles4/3/2027 08:00$74
10K4/3/2027 08:15$64

Going for a Time?

Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.

Not sure what to aim for? The 10K pace chart lists the pace for every finish time.

Plan Your Trip

Where to Stay

Traveling for this race? The map shows hotels and rentals in and around Seattle — pan or zoom to compare what's nearby.

The map is provided by Stay22. If you book through it, RunSesh may earn a commission at no extra cost to you — it never affects the races we list.

Common Questions About the Tenacious 10

Where can I train for the Tenacious 10?

Join a local run club. Club Northwest, Seattle Running Club, West Seattle Running Club and others in Seattle welcome runners of all paces, and a weekly group run is the most reliable way to hold a training block together.

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