Mainly Marathons Northwest Series Days 3 & 4 (WA)
Clarkston, WA
Sep 22–23, 2025
Mainly Marathons Northwest Series – Days 3 & 4 (WA) takes place at the Conference Center in Clarkston with an out and back (2.2 miles total) on the Greenbelt Walkway. The course is paved, with some hills. Number of Laps: 6 for half marathon, 12 for marathon (subject to change).
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