Race calendar · September 2026 · Washington

September 2026 10K Races in Washington

Every 10K in Washington in September 2026, all 8 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.

8 10K races in September 2026

5K in SeptemberHalf Marathon in SeptemberMarathon in SeptemberUltra in September

By the numbers

The Biggest and Longest-Running

The September 10K races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.

Largest field99 finishersPacific Coast Running Festivalin the 5K

September 10K Races by City

Seattle 2Camas 1Issaquah 1Long Beach 1Puyallup 1Spokane 1Woodinville 1
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Soonest 10K Races in September

8 total
Sat, Sep 26, 2026Pacific Coast Running Festival Long Beach, WA5KHalf Marathon1 Mile10KFrom $25Details Sat, Sep 26, 2026Medal Madness 5K, 10K, & 13.1M at Spokane, WA (39) Spokane, WA5K10KHalf MarathonFrom $30Details Sat, Sep 26, 2026Medal Madness 5K, 10K & 13.1M at Camas, WA (39) Camas, WA5K10KHalf MarathonFrom $30Register Sat, Sep 26, 2026Oktoberfest Run 5K/10K/13.1 SEATTLE Seattle, WA5K10KHalf Marathon1 MileRegistration closedFrom $30View race Sat, Sep 26, 2026Run for Donuts 5K/10K/13.1 SEATTLE Seattle, WA5K10KHalf Marathon1 MileRegistration closedFrom $30View race Sun, Sep 27, 2026Run or Wine 5k & 10k - September 2026 Woodinville, WA5K10KFrom $50Details Sun, Sep 27, 2026Puyallup Valley Half Marathon and 10K Puyallup, WA13.6 Miles10KFrom $50Details Sun, Sep 27, 2026Run with the Fishes Annual 5K, 10K, & Kids' Fun Run Issaquah, WA10K5K1KFrom $50Details

Common Questions About Running a September 10K in Washington

When in September are most 10K races held?

The busiest weekend in Washington is September 26 and September 27, with 8 10K races on those two days, and the single busiest day is Saturday, September 26 with 5. Every one of them is on a Saturday or a Sunday.

How much does a September 10K cost to enter?

The typical entry is $30, with paid entries running from $25 up to $50. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.

Are there trail 10K races in Washington in September?

Yes, 2 races around Washington get you off the pavement: 1 is a trail race, and 1 mixes road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.

10K Races in Other Months

August and October sit either side of September, which is where most people look next when a date does not fit.

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