Get ready for a spooktacular time at the Monster Mash 5K on Saturday, October 25th, 2025! Set in the picturesque city of Issaquah, King, this fun-filled event promises an exciting day for runners of all ages. Whether you're a seasoned runner or just looking to enjoy a festive day with friends and family, the Monster Mash 5K offers a thrilling race distance that will get your adrenaline pumping. Don't miss out on this fantastic opportunity to celebrate the Halloween spirit while staying active! Join us for a day of fun, fitness, and community spirit at the Monster Mash 5K!