Monster Mash 5K

in United States at 4455 E Lake Sammamish Pkwy SE, Issaquah, WA 98029

2023 Monster Mash 5K in-person registration is sold out and CLOSED - thank you for your support! Still want to support local students? Visit: www.isfdn.org/donate


  • 5K
    In-Person 2023 MM5K Registration is SOLD OUT and Closed - Thank you! Virtual race registration avaiilable.

    Online registration is closed for this category.



  • Withdrawn

    Online registration is closed for this category.



  • Virtual 5K
    Dash with Monster Mash virtually! Sorry, no guaranteed race swag with late registration.

    Online registration is closed for this category.




VISIT OUR FULL MONSTER MASH 5K WEBSITE

We look forward to seeing you at Monster Mash 5K this weekend! Please refer to our main Monster Mash 5K Website for full details!

www.isfdn.org/monstermash5k

* SAVE TIME - PICK UP YOUR PACKET EARLY FRIDAY, 10/27 - 4-7 PM! *

Avoid the lines on race day by picking up your packet early!

To avoid elementary school bus traffic in the area, Early Packet Pickup is available on Friday, Oct. 27th any time between 4-7 pm at the Issaquah Schools Foundation located at 4225 West Lake Sammamish Pkwy SE, 98008. Limited parking in front of the building, additional overflow parking next door at Sunset Elementary. OK to pick up additional packets for friends and family.

*Packets include: timing bib, medal, tee (if you registered by 10/10) and pre-purchased Discover Passes. See parking lot map at: www.isfdn.org/monstermash5k

MM5K FAQ




View the MM5K FAQ here.

Parking

There is parking available onsite at the Lake Sammamish Boat Launch, adjacent to the Start/Finish line. WA State parks require a Discover Pass. If you do not already have a Discover Pass, you may purchase a day pass for $10 at an onsite parking kiosk. Alternatively, you may pre-purchase a Discover Day Pass for $10 and we will include this pass in your registration packet, which will be available for early pick up on 10/27 if you wish. There is also overflow parking .75 mi away at the ISD Admin building parking lot.

Swag




Registrations submitted by 10/10/23 include a 2023 MM5K Race Tee & Medal

MM5K Volunteer Opportunities




View the MM5K Volunteer Opportunities here.

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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Registrants

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