MCCM Monster Mash 5k & Creature Crawl 1k
- Date Sat 25th October 2025
- Time 9:30AM PDT
- Location Richland, Washington
- Price $2.06 - $22.20
- Races 4 races
- Distances 5km, 1km
Event summary
Get ready for a spooktacular morning of fun at the 3rd Annual Monster Mash 5K & Creature Crawl 1K, taking place on Saturday, October 25, 2025, at Howard Amon Park in Richland, Benton! This exciting family-friendly event is perfect for all ages, featuring a thrilling 5K run at 9:30 AM and a delightful 1K Creature Crawl for little ones at 10:30 AM. Dress up in your favorite monster costume or lab coat and join the festivities, where you'll enjoy hands-on science experiments, trick-or-treating, and a variety of STEM-inspired activity booths.
Participants in the 5K will have the chance to win prizes for the top three male and female finishers in each category, while children registered for the 1K will receive a free shirt and a swag bag! Plus, all registrants can indulge in a complimentary hot beverage and donut to fuel their mad scientist energy. Don’t miss out on early bird pricing – sign up by October 1st to guarantee your event t-shirt and secure your spot in this thrilling celebration of fun, fitness, and community support, with all proceeds benefiting the Mid-Columbia Children's Museum. Join us
Participants in the 5K will have the chance to win prizes for the top three male and female finishers in each category, while children registered for the 1K will receive a free shirt and a swag bag! Plus, all registrants can indulge in a complimentary hot beverage and donut to fuel their mad scientist energy. Don’t miss out on early bird pricing – sign up by October 1st to guarantee your event t-shirt and secure your spot in this thrilling celebration of fun, fitness, and community support, with all proceeds benefiting the Mid-Columbia Children's Museum. Join us
Organiser's Description
Calling All Little Monsters & Mad Scientists!
Registration is OPEN! The 3rd Annual Monster Mash 5K & Creature Crawl 1K is brewing up a morning of spooky science, silly experiments, and hands-on fun for the whole family!
Saturday, October 25, 2025
Howard Amon Park
Monster Mash 5K 9:30 AM (top 3 male & female finishers in each category win prizes )
Creature Crawl 1K 10:30 AM (costumes encouraged! Each child receives a FREE shirt with early registration + swag bag )
Throw on your monster costume or lab coat and join us for a morning of running, laughter, and STEM-powered funthink colorful test tubes, wacky experiments, and plenty of spooky-cute energy!
SIGN UP BY OCTOBER 1 FOR EARLY BIRD PRICING AND TO GUARANTEE YOUR EVENT T-SHIRT. Same-day registration is available, but swag and vouchers are while supplies last.
Science-y Perks & Fun
hot beverage Each 5K participant and 1K child gets a free cider/coffee and donut voucher (fuel for mad scientists!).
FREE face painting for all child registrants.
Trick-or-treating, STEM-inspired activity booths, and hands-on experiments for all ages!
Safety in the Lab
- No motorized scooters, rollerblades, or skateboards.
- Strollers welcome (please secure little ones).
- Service animals only .
- Bring water and stay hydrated .
- Costumes encouraged, but make sure they dont block vision or movement.
- Children must be supervised at all times.
- Stick to marked paths and follow volunteer guidance .
sparkles All proceeds benefit the Mid-Columbia Childrens Museum, supporting the creation of a brick-and-mortar childrens museum in the Tri-Cities.
Registration is OPEN! The 3rd Annual Monster Mash 5K & Creature Crawl 1K is brewing up a morning of spooky science, silly experiments, and hands-on fun for the whole family!
Saturday, October 25, 2025
Howard Amon Park
Monster Mash 5K 9:30 AM (top 3 male & female finishers in each category win prizes )
Creature Crawl 1K 10:30 AM (costumes encouraged! Each child receives a FREE shirt with early registration + swag bag )
Throw on your monster costume or lab coat and join us for a morning of running, laughter, and STEM-powered funthink colorful test tubes, wacky experiments, and plenty of spooky-cute energy!
SIGN UP BY OCTOBER 1 FOR EARLY BIRD PRICING AND TO GUARANTEE YOUR EVENT T-SHIRT. Same-day registration is available, but swag and vouchers are while supplies last.
Science-y Perks & Fun
hot beverage Each 5K participant and 1K child gets a free cider/coffee and donut voucher (fuel for mad scientists!).
FREE face painting for all child registrants.
Trick-or-treating, STEM-inspired activity booths, and hands-on experiments for all ages!
Safety in the Lab
- No motorized scooters, rollerblades, or skateboards.
- Strollers welcome (please secure little ones).
- Service animals only .
- Bring water and stay hydrated .
- Costumes encouraged, but make sure they dont block vision or movement.
- Children must be supervised at all times.
- Stick to marked paths and follow volunteer guidance .
sparkles All proceeds benefit the Mid-Columbia Childrens Museum, supporting the creation of a brick-and-mortar childrens museum in the Tri-Cities.
Races
-
Monster Mash 5k (13+ Years Old)
Incl. $2.20 Fee & T-Shirt
Sat 25th October 2025 (9:30AM PDT)
$22.20
This is an out and back course, to be completed one time. There will be a staffed drink station at the halfway/turn around mark. Prizes for the top 3 male and female racers in each category. trophy Registration includes FREE cider/coffee and donuts. hot beverage doughnut -
Monster Mash 5k (Child 5-12 Years Old)
Incl. $1.60 Fee & T-Shirt
Sat 25th October 2025 (9:30AM PDT)
$11.60
This is an out and back course, to be completed one time. There will be a staffed drink station at the halfway/turn around mark. Prizes for the top 3 male and female racers in each category. trophy Registration includes FREE cider/coffee, donuts, and face painting . hot beverage doughnut artist palette -
Creature Crawl 1k (0-12 Years Old)
Incl. $1.60 Fee & T-Shirt
Sat 25th October 2025 (10:30AM PDT)
$11.60
This is a closed loop course. Participants will be able to trick or treat throughout the course. ghost Volunteers will be stationed throughout. Registration includes FREE cider/coffee, donuts, face painting, a swag bag with goodies and an event shirt (if registered by 10/2)! hot beverage doughnut artist palette -
Creature Crawl 1k (Adult Chaperone)
Incl. $1.06 Fee & T-Shirt
Sat 25th October 2025 (10:30AM PDT)
$2.06
This option is for accompanying adult(s) of minors participating in the 1K race. We need all persons attending the race to register and fill out the waiver.
Participate in Running Research
Receive 2 FREE months of run training from our friends at RunDot
The RunDot Project is a research initiative that helps RunDot quantify and enhance the performance gains that RunDot's Optimized Training delivers over training alternatives.
Reviews
Done this event?
First-hand event reviews from people who have been there, done that and got the breathable T-shirt, really help everyone choose their next event.
Add a reviewMCCM Monster Mash 5k & Creature Crawl 1k
