Marathons in Washington — 2026

There are 18 marathons in Washington scheduled for 2026. The next is the Palouse to Cascades Marathon+ Relay in Ellensburg on June 20. Washington marathons run primarily June through May.

Palouse to Cascades Marathon+ Relay

Sat, Jun 20 · Ellensburg, WA Ellensburg

Palouse to Cascades Marathon+ Relay Team of TwoPalouse to Cascades Marathon+ SOLO RUNNERPalouse to Cascades Marathon+ Relay Team of Four

From $90 Open

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Jack & Jill Marathon & Half

Sat, Jul 25 · North Bend, WA North Bend

Half Marathon SaturdayHalf Marathon SundayMarathon Sunday +1

From $119 Open

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Sullivan Lake Triathlon 2026

Sat, Aug 1 · Metaline Falls, WA Metaline Falls

Youth Super SprintAdult TeamSullivan Lake Triathlon 2026 +1

From $55 Open 15 spots left

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PeaceHealth Appletree Marathon

Sat, Aug 29 · Vancouver, WA Vancouver

Virtual Sunset 5K5K Sunset RunHalf Marathon +3

From $44 Open

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Cascade Express Marathon & Half Marathon

Sat, Sep 12 · North Bend, WA North Bend

Cascade Express Half MarathonCascade Express Marathon

From $119 Open

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Beat the Blerch

Sat, Sep 12 · Carnation, WA Carnation

5K10KHalf Marathon +1

From $40 Open 100 spots left

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Skagit Flats Marathon, Half & 5k

Sun, Sep 13 · Burlington, WA Burlington

5K1/2 MarathonMarathon

From $30 Open

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Fall - Mud Mountain Dam Marathon & Half Marathon

Sat, Sep 19 · Enumclaw, WA Enumclaw

Fall - Dam Half MarathonFall - Dam Marathon

From $70 Open Closing Soon

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Bellingham Bay Marathon

Sun, Sep 20 · Bellingham, WA Bellingham

5K10KHalf Marathon +3

From $30 Open

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Pacific Coast Running Festival

Sat, Sep 26 · Long Beach, WA Long Beach

Kids 1 Mile & 1/2 Mile DashVirtual Sunset Sand 5KSunset Sand 5K +7

From $15 Open

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2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K

Sun, Oct 11 · Snohomish, WA Snohomish

The Snohomish River Run 5kThe Snohomish River Run 10kThe Snohomish River Run Half Marathon +1

From $45 Open

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The Spokane Marathon

Sun, Oct 11 · Spokane, WA Spokane

Kids Fun Run10KHalf Marathon +3

From $0 Open

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Tri-Cities Marathon

Sun, Oct 25 · Richland, WA Richland

5KHalf MarathonMarathon +1

From $25 Open

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Last Chance Marathon and Half Marathon

Thu, Dec 31 · Bellingham, WA Bellingham

Half MarathonMarathon

From $60 Open

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Yakima River Canyon Marathon and Half-Marathon

Sat, Apr 3 · Yakima, WA Yakima

1/2 Marathon1/2 MarathonYakima River Canyon Marathon +3

From $85 Closed

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OAT Run

Sat, Apr 10 · Port Angeles, WA Port Angeles

OAT Run 12KOAT Run 12KOAT Run Half Marathon WAVE 1 +5

From $48 Open

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Run the River

Fri, Apr 16 · Kennewick, WA Kennewick

Kids MarathonKids Marathon5k +9

From $15 Closed 50 spots left

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Tacoma City Marathon / Half / Ghost / 10K / 5K / 1K

Sat, May 1 · Tacoma, WA Tacoma

Kids 1KSaturday - Kids 1K5K +13

From $10 Open

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