Course Map: Magnuson Series Earth Day Half Marathon

Like its counterpart race later in the summer, the Magnuson Series Earth Day Half Marathon follows the same route within Warren G. Magnuson Park, a 5K course that’s used as the baseline route for all of the race distances at the event. Those running the 15k run it three times, and those running the half marathon make three loops around the course, plus an additional one-kilometer stretch near the start & finish line area. (MORE: Magnuson Series Earth Day Half Marathon event details)

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Note: The course map above provides the approximate route for the race. Though every effort has been made to ensure its accuracy, changes are sometimes made to race routes due to weather conditions, road closures or other circumstances that can require a course to be changed. If you see an error above, email us here.