Run ThisRun This
    Create Your RaceFind EventsContact
    Create
    1. Run This/
    2. Races/
    3. Washington/
    4. Seattle/
    5. Ultra

    Race calendar

    Ultra Races in Seattle, WA

    1 upcoming Ultra race in Seattle. Run This events are listed first.

    Sort
    Search all races
    DistanceAll5K10KHalf MarathonMarathonUltra
    Nearby citiesSpokaneNine Mile FallsRichlandEverettTacomaOlympiaPuyallupVancouverPort AngelesCamasYakimaWoodinville

    1 race

    Sat, Nov 28, 2026

    2026 Seattle Ghost Marathon, Half & 50K

    Seattle, WA

    OutsideMarathon31.1 mi

    Own a race in Seattle?

    List it on Run This and it shows up right here, where runners are already looking. Run This is any race director's best friend and the most modern platform for your registration. Already listed? Claim it.

    List your race

    Never miss a race your friends are running.

    Save Seattle, WA races, see who else is going, and get a nudge before signups close.

    Create your free account

    Don't lose this one.

    Save any Seattle, WA race to your calendar and we'll remind you when it matters.

    Create your free account

    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