Courses & Maps

Download a detailed course map, showing both route and elevation.

PDF Half Marathon PDF 10K PDF 5K

At a top level, here's how the courses are laid out:

  • Half Marathon follows E., W. and N. Mercer Way around Mercer Island
  • 10k heads east across Mercer Island's north end, then cuts back to the west side, then back to the start
  • 5k heads east side across Mercer Island's north end, then back to the start

NOTE: We will have three NUUN electrolyte enhanced drink stations set up - at the third, sixth and twelfth miles of the Half Marathon course (Water Stations #3, #4 and #7). Water Station #7 is also at the fourth mile of the 10k course. For a nutrition boost, there will be a CLIF shot station at the eighth mile of the Half Marathon course (Water Station #5).

Parking and Shuttles

PDF 2012 Parking & Shuttle Map

Please keep in mind:

  • Come early to avoid delays, as all events will start on time
  • Consider using King County Metro or Sound Transit to avoid the risk of slow-moving bridge traffic - even in the early morning, it can be challenging
  • Leave at least one hour before your start time if you are taking a shuttle from a remote lot on Mercer Island
  • All Eastbound traffic from Seattle should use Island Crest Way exit to avoid delays
  • West Mercer Way exit from I-90 will be closed from 7:45 am until noon
  • Westbound traffic from the Eastside should use either E. Mercer Way or Island Crest Way exits
  • Allow 45 minutes to park and get to the starting area (in front of the Community Center)
  • Make sure to note the shuttle pickup location nearest to your car on the parking map
  • Avoid the 77th Ave. SE exit after 8:00am on March 25
  • The Community Center parking lot will be closed on March 25

Location

All events (March 25) and the Race Village (March 24-25) take place at the Mercer Island Community and Event Center. Check for signs posted at all Mercer Island I-90 exits when you arrive. The Pre-Race Expo, on Saturday, March 24, will be held in the Gym on the lower level of the Community Center.