MCCM Monster Mash 5K
Always double-check with the organizer's website! This page may contain affiliate links.
About the race
The MCCM Monster Mash 5K & Creature Crawl 1K is the Mid‑Columbia Children’s Museum's 4th annual Halloween event on October 24, 2026, at Howard Amon Park at the Finger Nail in Richland, Washington.
Distances:
- 5K
- 1K
The event program includes a Monster Mash 5K with adult and child divisions and a Creature Crawl 1K for children. The 5K is an out and back course to be completed one time and features a staffed drink station at the halfway/turnaround point. Prizes are awarded to the top three male and top three female finishers in each category of the 5K. The Creature Crawl 1K uses a closed loop course with trick‑or‑treat stops and volunteers stationed along the route.
Registration items vary by category. Monster Mash 5K registrations note complimentary cider or coffee and donuts; the child 5K and Creature Crawl registrations add face painting. The Creature Crawl registration can also include a swag bag and an event shirt for early registrants. Fee levels listed by the organizer include a $20 fee for the adult 5K category, $10 for the child 5K and Creature Crawl entries, and a $1 option for accompanying adult chaperones. All attendees are required to register and complete the waiver. Registration opens September 1, 2026; some categories close in early October and others in late October 2026.
The event also lists family oriented fall activities and STEM inspired elements as part of the day. Visit the organization's website for the most recent information.
