Big Backyard 5K, benefiting King County Parks

in Redmond, WA at King County’s Marymoor Park


  • BBY 5K Live Event at 8:00 AM

    » $35.00 5K Standard Registration (includes your BBY5K Tee and Bib #) (through 5/31 at 11:59 PM US/Pacific)
    » $45.00 Hoodie 5K Registration (includes BBY5K Harborstone Hoodie, BBY5K Tee and Bib #) (through 5/31 at 11:59 PM US/Pacific)
    » $25.00 Youth Registration (14 & Under, includes BBY5K Tee and Bib #) (through 5/31 at 11:59 PM US/Pacific)
    » $45.00 5K Late Registration (includes your BBY5K Tee and Bib #) (5/31 at 11:59 PM US/Pacific through 6/3 at 11:59 PM US/Pacific)
    » $25.00 Youth Late Registration (14 & Under, includes BBY5K Tee and Bib #) (5/31 at 11:59 PM US/Pacific through 6/3 at 11:59 PM US/Pacific)

    ONLINE LIVE Event Registration will close at 11:59pm Saturday June 3.
    No Race Day Registration!

    This year’s BBY5K will have a mass start, broken into waves based on your pace, and to keep things less crowded on the trail. Waves start at 8:00am with TEAMS, followed by a run/jog wave, and the “Enjoy your Park” pace.

    As usual, your 4-legged running companion may join you. Please keep your leashes short, and remember to pick up after your pet
    Register for BBY 5K Live Event

  • Donation Only
    Benefiting King County Parks

    » donate any amount
    Donation Only



* Click here for fee information

Connect with others about this event and see who's going!

 Start a Team!

Sign up with your friends and running buddies! We will take the combined time of your Fastest 5 finishers to calculate Team Awards. Sign-up as many team members as you want and improve your odds of winning. Ask your Team Captain to enter your Team Name when he/she registers. Individual members will select your Team Name from the Pull-Down Menu in the Team Registration field. This is a LIVE event (only), and we look forward to watching the competition.

Team captains can look up their team members here

 Event Schedule

Sunday June 4 – King County’s Marymoor Park, Redmond

7:00 AM PACKET PICKUP

START WAVES:
8:00 AM TEAMS
8:04 AM RUN/JOG
8:08 AM WALK AND ENJOY

 Parking

FREE PARKING for race participants in the Triangle Lot just East of the Start/Finish Line – by Climbing Rock and Velodrome

 Questions?

For event-related questions, please click on the Contact the Organizers button on the left-hand side of this page.

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