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    Half Marathon Races in Seattle, WA

    34 upcoming Half Marathon races in Seattle. Run This events are listed first.

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    DistanceAll5K10KHalf MarathonMarathonUltra
    Nearby citiesSpokaneNine Mile FallsRichlandEverettTacomaOlympiaPuyallupVancouverPort AngelesCamasYakimaWoodinville

    34 races

    Sat, Sep 26, 2026

    Oktoberfest Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Sep 26, 2026

    Run for Donuts 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Oct 10, 2026

    Cookie Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Oct 10, 2026

    Coffee Lovers Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

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    Sat, Oct 17, 2026

    The Salty Half and 10K too!

    Seattle, WA

    OutsideMarathon10K

    Sat, Oct 31, 2026

    PB&J Fuel Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Oct 31, 2026

    Halloween Trick or Trot Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Nov 14, 2026

    Run for Mental Health 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Nov 14, 2026

    Veterans Day Freedom Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Nov 28, 2026

    2026 Seattle Ghost Marathon, Half & 50K

    Seattle, WA

    OutsideMarathon31.1 mi

    Sat, Nov 28, 2026

    Coffee Lovers Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Nov 28, 2026

    Thanksgiving Gobble Trot Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Dec 12, 2026

    Run for Breast Cancer 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Dec 12, 2026

    Sunrise Marathon 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Dec 26, 2026

    A Merry Christmas Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Dec 26, 2026

    New Year's Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Jan 16, 2027

    MLK Jr. Freedom Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Jan 16, 2027

    Sunrise Marathon 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Jan 30, 2027

    Coffee Lover Run SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Jan 30, 2027

    Run for Donut SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Feb 13, 2027

    Valentine's Day Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Feb 13, 2027

    Run for Chocolate 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sun, Feb 14, 2027

    My Better Half Marathon

    Seattle, WA

    OutsideMarathon10K5K

    Sat, Feb 27, 2027

    Run Together Against Breast Cancer SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Feb 27, 2027

    Run For Mental Health SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Mar 20, 2027

    Sunrise Marathon 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Mar 20, 2027

    St. Paddy's Day Lucky Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Mar 27, 2027

    Always Hope Easter Run SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Mar 27, 2027

    SuperHeroes Run SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Apr 10, 2027

    Sloth Run 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Apr 24, 2027

    Coffee Lover Run SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Apr 24, 2027

    Run for Donut SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, May 8, 2027

    Run for Chocolate 5k/10k/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

    Sat, Jun 19, 2027

    Run Juneteenth Day 5K/10K/13.1 SEATTLE

    Seattle, WA

    Outside5K10KMarathon1 mile

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    Other cities in Washington

    Spokane23Nine Mile Falls12Richland12Everett11Tacoma11Olympia10Puyallup10Vancouver10Port Angeles9Camas8Yakima
    8
    Woodinville7
    Kirkland6
    Redmond6
    Auburn5
    Black Diamond5
    Pasco5
    Anacortes4
    Bellingham4
    Snohomish4
    Bainbridge Island3
    Bellevue3
    Issaquah3
    Kennewick3
    Mount Vernon3
    Mukilteo3
    Walla Walla3
    Kent2
    Maple Valley2