Haunted 5k, 10k, & Half Marathon At Chiawana Park, Pasco, Wa (42) 80

Experience a thrilling day of running at the Haunted 5K, 10K, and Half Marathon on October 18, 2025, at Chiawana Park in Pasco, WA! Choose from three exciting race distances: a scenic 5K, a challenging 10K, or a demanding Half Marathon, all set against the picturesque backdrop of the park. Celebrate your achievements with themed finisher medals and showcase your creativity for a chance to win the best costume award. Register in advance on RunSignup to secure your spot, as on-site registration will not be available. With a 3.5-hour time limit for the Half Marathon and points towards the US Road Running Race Series up for grabs, this event caters to both competitive runners and those seeking a fun day out. Join us for a festive atmosphere, group photos before each race, and the opportunity to run, celebrate, and maybe even claim the best costume prize!