RaceMob

Upcoming Seattle, Washington Half Marathon Races

View some of the best Half Marathon races in Seattle, Washington! RaceMob's race calendar allows you to find races that suits your needs. Use our advanced filters below or calendar on the right, and discover new races. We try to maintain up to date information, and rely heavily on our community of volunteers. If you find a race that we're missing, use the "Suggest Race" button on the right. Find RaceMob discounts that others have added or add deals that you've discovered.

    • 1/2M

    Enumclaw, WA

    29.62 miles away

    I'm Attending

    Black Diamond Triathlon

    Raise the Bar Events is excited to present the 2024 Black Diamond Olympic Tri, Olympic Aquabike, Sprint Tri & Olympic and Sprint Relays   Triathletes will swim in picture perfect Deep Lake at Nolte State Park followed by rolling, elevatio...

    • 1/2M

    Olympia, WA

    47.14 miles away

    I'm Attending

    Capital City Marathon

    Welcome to Capital City Marathon, one of the best marathons in the Northwest. Located in fun and friendly Olympia, Washington, we feature a beautiful course with rolling hills, enthusiastic volunteers, a festive post-race event with food, music, m...

    • 1/2M

    Seattle, WA

    3.68 miles away

    I'm Attending

    Seattle Cherry Blossom Run

    / 1 RaceMobber Scheduled

    This event SELLS OUT every spring season! Introducing a 10K! And Half Marathon a second 5K, and one mile Blossom Kids Run. SIGN UP NOW to celebrate spring at the University of Washington campus on March 23th, 24th, and 30th, 2024.Be part of the "L...

    • 1/2M

    Kent, WA

    13.04 miles away

    I'm Attending

    Run The Green

    Join us on March 15, 2025 for Run the Green!  The half marathon and 10K courses are out and backs on the Green River Trail, and along the way you'll enjoy scenery of the river and golf course.  Flat and fast you won't want to miss this r...

    • 1/2M

    Redmond, WA

    10.28 miles away

    I'm Attending

    Lake Sammamish Half Marathon

    / 5 RaceMobbers Scheduled

    The Lake Sammamish Half Marathon is a point to point race that takes runners along the smooth trail that connects Marymoor Park in Redmond to Lake Sammamish State Park in Issaquah. This interurban trail is very popular with runners and is fully pa...

    • 1/2M

    Seattle, WA

    5.97 miles away

    I'm Attending

    Christmas Jingle Rudolph Run 5K/10K/13.1 SEATTLE

    Run in our annual Christmas Run, where we celebrate this festive holiday of thanksgiving, family, and friends. Run like a Reindeer, an Elf, Santa, or even a Snowman! We have some Christmas goodies for you after your run! Find a friend, set a goal...

    • 1/2M

    Seattle, WA

    5.97 miles away

    I'm Attending

    New Years Resolution Run 5K/10K/13.1 SEATTLE

    Run in our annual New Years Run, where we help you set not just resolutions for the New Year but a journey to keep running with our "Still Running" shirt! We have some goodies for you after your run! Find a friend, set a goal, and join this super ...

    • 1/2M

    Sequim, WA

    48.93 miles away

    I'm Attending

    Jamestown Glow Run

    / 1 RaceMobber Scheduled

     Jamestown S'Klallam Glow Run 5K / 10K. The 5K and 10K will be an out and back on the Olympic Discovery Trail.  The 5K and 10K will start at dusk, approximately 4:30 pm on Saturday, December 7th at the Jamestown S'Klallam Tribe. All of J...

    • 1/2M

    Seattle, WA

    5.97 miles away

    I'm Attending

    Gobble Wobble Turkey Trot 5K/10K/13.1 SEATTLE

    Join us in our annual Thanksgiving Turkey Trot Run, where you'll be running off the Turkey and all year long! Afterall, we run so we can feast :). Join us in this fun, community 5K, 10K, or Half-Marathon 13.1. Set a goal, bring your friends a...

    • 1/2M

    Seattle, WA

    5.97 miles away

    I'm Attending

    Bad Donkey Run 5K/10K/13.1 SEATTLE

    For all the bad donkey runners out there. We know you didn't choose the run life, the run life chose you. Only a bad donkey runner can wear our bad donkey shirt! Overview:Run will sell-out QUICK! We will close off waves the moment they fill up. If...

    • 1/2M

    Kirkland, WA

    8.71 miles away

    I'm Attending

    Lake Washington Half Marathon

    The Lake Washington Half marathon is a beautiful loop course that starts and finishes and Juanita Beach Park in Kirkland. See more details on the website here!  Earn the  R-Pod medal when you sign up for any 3 Orca Running races! Check o...

    • 1/2M

    Seattle, WA

    2.52 miles away

    I'm Attending

    The Salty Half and 10K too!

    Join us for a Fun Fall Run!The 16th Annual Salty Half  and 10k too! Saturday, October 19, 2024 8:30am Don Armeni Boat Ramp 1222 Harbor Ave SW,  Seattle, WA 98116   Beautiful views of the Puget Sound and Seattle’s skyline. The best s...

    • 1/2M

    Seattle, WA

    5.97 miles away

    I'm Attending

    Run for Coffee Lovers 5K/10K/13.1 SEATTLE

    For all the Coffee Lovers, this run is for you! You’ll love the shirt we send you. Set a goal, bring a friend, and join this super fun 5K/10K/13.1 Half-Marathon! Overview:Run will sell-out QUICK! We will close off waves the moment they fill up. If...

    • 1/2M

    Buckley, WA

    33.82 miles away

    I'm Attending

    Mud Mountain Dam Marathon / Half / 5K

    MARATHON UPDATE: The Foothills connection bridge is scheduled to be complete in September, with the unknown that it could potentially not be finished we are NOT holding the Dam Marathon distance in 2024. The Fall Event offers a half marathon &...

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