Monster Mash 5K
Help the Issaquah Schools Foundation raise a monstrous amount of support for local students by joining the Issaquah Schools Foundation's Monster Mash 5K! Hosted at Lake Sammamish State Park Boat Launch and the East Lake Sammamish Trail, this professionally chip-timed 5K route is perfect for soaking up the fall colors and fresh air!
Beginner Runner Training Plan
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Find Accommodation Near Monster Mash 5K
Use this map to find hotels and airbnb accommodation near this race location.
Find your running pace and splits, and learn if you can outrun dangerous animals with the RunGuides run pace calculator.