Half Marathons in Washington — 2026

There are 24 half marathons in Washington scheduled for 2026. The next is the Spring - Mud Mountain Dam Marathon & Half Marathon in Enumclaw on May 30. Washington half marathons run primarily May through April.

Spring - Mud Mountain Dam Marathon & Half Marathon

Sat, May 30 · Enumclaw, WA Enumclaw

Spring - Dam Half MarathonSpring - Dam Marathon

From $70 Open Closing Soon

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Explore Puyallup

Sun, May 31 · Puyallup, WA Puyallup

Explore Puyallup

From $15 Open Closing Soon

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The Great Ferry Race

Sun, Jun 7 · Bainbridge Island, WA Bainbridge Island

The Great Ferry Race

From $79 Open Closing Soon

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Light at the End of the Tunnel Marathon & Half

Sun, Jun 7 · Snoqualmie Pass, WA Snoqualmie Pass

Half MarathonMarathon

Closed

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Super Hyak Marathon and Half

Sat, Jun 13 · North Bend, WA North Bend

Super HYAK Half MarathonSuper HYAK Marathon

From $119 Open

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Bound for Boston Marathon & Half Marathon - Seattle

Sun, Jun 14 · Olympia, WA Olympia

Virtual Half MarathonHalf MarathonVirtual Marathon +1

From $25 Open Closing Soon

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Black Diamond Triathlon

Sat, Jun 27 · Enumclaw, WA Enumclaw

Super SprintSprint RelaySprint +3

From $58 Open

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Sea to Sound

Wed, Jul 1 · Port Angeles, WA Port Angeles

Sea to Sound for Cyclists - Day 1Sea to Sound - Day 1Sea to Sound - Day 3 +8

From $50 Closed 25 spots left

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Righteous Richland Sprint Triathlon

Sat, Jul 11 · Richland, WA Richland

Righteous Richland Sprint TriathlonOpen Relay Team for Righteous Richland Sprint TriathlonCoed Relay Team for Righteous Richland Sprint Triathlon +1

From $45 Open

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Gorge Ultra Distance

Sun, Jul 12 · Stevenson, WA Stevenson

17 mile course

From $86 Open

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Jack & Jill Marathon & Half

Sat, Jul 25 · North Bend, WA North Bend

Half Marathon SaturdayHalf Marathon SundayMarathon Saturday +1

From $119 Open

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Sullivan Lake Triathlon 2026

Sat, Aug 1 · Metaline Falls, WA Metaline Falls

Youth Super SprintFriends And Family WaveSullivan Lake Triathlon 2026 +1

From $55 Open Closing Soon 15 spots left

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Lake Meridian Triathlon

Sat, Aug 15 · Kent, WA Kent

Super SprintSprintOlympic +2

From $65 Open

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Kirk-Wood Half Marathon

Sat, Aug 22 · Kirkland, WA Kirkland

Kirk-Wood Half Marathon

From $75 Open

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Iron Horse Half Marathon

Sun, Aug 30 · North Bend, WA North Bend

Virtual Half MarathonHalf Marathon

From $52 Open Closing Soon 40 spots left

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Redmond Harvest Half Marathon

Mon, Sep 7 · Redmond, WA Redmond

Half Marathon

From $59 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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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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Lake Washington Half Marathon

Sat, Oct 17 · Kirkland, WA Kirkland

Half MarathonVirtual Half Marathon

From $52 Open Closing Soon

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Tri-Cities Marathon

Sun, Oct 25 · Richland, WA Richland

Half MarathonMarathonMarathon Relay

From $55 Open

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2026 Seattle Ghost Marathon, Half & 50K

Sat, Nov 28 · Seattle, WA Seattle

2026 Seattle Ghost Half Marathon2026 Seattle Ghost Marathon2026 Seattle Ghost 50K

From $120 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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Brooks Lake Sammamish Half Marathon presented by REI

Sat, Mar 6 · Redmond, WA Redmond

Virtual Half MarathonHalf MarathonSaturday Half Marathon +2

From $50 Closed 30 spots left

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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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