10K ONLINE REGISTRATION IS NOW CLOSED. ON-SITE REGISTRATION IS AVAILABLE 8/22-23 @ GASWORKS PARK.
MARATHON & HALF

Course Info & Maps

THE COURSE

Rolling course with hilly sections and scenic views of Downtown Seattle and Lake Washington. USATF and RRCA certified 26.2 and 13.1 mile courses. For your safety, absolutely no dogs, bikes, inline skates, or strollers allowed on the course.

Half Marathon Course

The course starts near Seattle Center at 5th and Harrison, next to the Experience Music Project. Entrants will travel through downtown streets, along the shores of beautiful Lake Washington, through the Arboretum and back to the Seattle Center.

USATF certification: WA08056MW

Marathon Course

Marathon entrants will follow the same course as the Half Marathoners with an added section crossing the Lake Washington floating bridge (I-90) and looping around scenic Seward Park.

USATF certification: WA08055MW

TRAFFIC CLOSURES

For information regarding traffic closures and neighborhood impact, refer to the following:

MAPS

Having trouble viewing maps? Make sure you have an updated version of Adobe Acrobat Reader