MCCM Monster Mash 5k & Creature Crawl 1k
- Date Sat 24th October 2026
- 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 day of fun at the 4th Annual Monster Mash 5K & Creature Crawl 1K, taking place on Saturday, October 24, 2026, in the beautiful Howard Amon Park in Richland, Benton. This family-friendly Halloween event is all about costumes, movement, and hands-on activities, supporting the future of the Mid-Columbia Children's Museum.
Join in on the excitement as you take part in the costume-friendly 5K run/walk or cheer on your little monsters in the delightful Creature Crawl 1K. With STEM-inspired activities and plenty of fall festivities, there's something for everyone to enjoy. Early registration begins on September 1, 2026, so don’t miss your chance to be part of this fantastic community celebration! Bring your friends and family for a day filled with creativity, curiosity, and fun—let’s make this Halloween one to remember!
Join in on the excitement as you take part in the costume-friendly 5K run/walk or cheer on your little monsters in the delightful Creature Crawl 1K. With STEM-inspired activities and plenty of fall festivities, there's something for everyone to enjoy. Early registration begins on September 1, 2026, so don’t miss your chance to be part of this fantastic community celebration! Bring your friends and family for a day filled with creativity, curiosity, and fun—let’s make this Halloween one to remember!
Organiser's Description
4TH ANNUAL MONSTER MASH 5K & CREATURE CRAWL 1K
Join the Mid-Columbia Children's Museum for the 4th Annual Monster Mash 5K & Creature Crawl 1K, a family-friendly Halloween event bringing together costumes, movement, and hands-on fun in support of the future Mid-Columbia Children's Museum.
Whether you're running the 5K, walking with friends, or cheering on your little monster in the Creature Crawl, there's something for everyone!
Saturday, October 24, 2026
Howard Amon Park | Richland, WA
WHAT TO EXPECT
Costume-friendly 5K run/walk
Creature Crawl 1K for kids and families
STEM-inspired activities
Family-friendly fall fun
red heart Support the future Mid-Columbia Children's Museum
REGISTRATION
Registration opens at 9:00 AM on September 1, 2026!
Register early and join us for one of our favorite family events of the year. Early registration ends October 1st!
Foster & Kinship Families
Discounted registration is available for foster and kinship families. To receive a special registration code, please reach out to us at info@mccmuseum.org.
We want Monster Mash to be an event all families in our community can enjoy!
RACE DAY RULES
Costumes encouraged keep them safe to run or walk in!
Strollers welcome please start toward the back.
Please leave pets at home (service animals welcome).
Keep little monsters supervised.
right arrow Stay on the marked course and follow volunteer directions.
red heart Be kind, have fun, and cheer each other on!
Additional race-day details, including check-in and start times, will be shared closer to the event.
We can't wait to celebrate another year of community, creativity, curiosity, and fun with you!
Join the Mid-Columbia Children's Museum for the 4th Annual Monster Mash 5K & Creature Crawl 1K, a family-friendly Halloween event bringing together costumes, movement, and hands-on fun in support of the future Mid-Columbia Children's Museum.
Whether you're running the 5K, walking with friends, or cheering on your little monster in the Creature Crawl, there's something for everyone!
Saturday, October 24, 2026
Howard Amon Park | Richland, WA
WHAT TO EXPECT
Costume-friendly 5K run/walk
Creature Crawl 1K for kids and families
STEM-inspired activities
Family-friendly fall fun
red heart Support the future Mid-Columbia Children's Museum
REGISTRATION
Registration opens at 9:00 AM on September 1, 2026!
Register early and join us for one of our favorite family events of the year. Early registration ends October 1st!
Foster & Kinship Families
Discounted registration is available for foster and kinship families. To receive a special registration code, please reach out to us at info@mccmuseum.org.
We want Monster Mash to be an event all families in our community can enjoy!
RACE DAY RULES
Costumes encouraged keep them safe to run or walk in!
Strollers welcome please start toward the back.
Please leave pets at home (service animals welcome).
Keep little monsters supervised.
right arrow Stay on the marked course and follow volunteer directions.
red heart Be kind, have fun, and cheer each other on!
Additional race-day details, including check-in and start times, will be shared closer to the event.
We can't wait to celebrate another year of community, creativity, curiosity, and fun with you!
Races
-
Monster Mash 5k (13+ Years Old)
Incl. $2.20 Fee & Race Shirt or Beanie
Sat 24th October 2026 (9:30AM PDT)
$22.20
OPENS 01 SEPThis 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 & Race Shirt or Beanie
Sat 24th October 2026 (9:30AM PDT)
$11.60
OPENS 01 SEPThis 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 & Race Shirt or Beanie
Sat 24th October 2026 (10:30AM PDT)
$11.60
OPENS 01 SEPghost Trick-or-Treat While You Race! Kids will make their way around our closed loop 1K course with trick-or-treat stops along the way. Volunteers will be stationed throughout. Registration includes FREE cider/coffee, donuts, face painting, a swag bag with goodies and an event shirt (with early registration)! hot beverage doughnut artist palette -
Creature Crawl (Adult Chaperone)
Incl. $1.06 Fee & Race Shirt or Beanie
Sat 24th October 2026 (10:30AM PDT)
$2.06
OPENS 01 SEPThis 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.
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Howard Amon Park at the Finger Nail, 500 Amon Park Dr., Richland, 99352, WA, United States
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MCCM Monster Mash 5k & Creature Crawl 1k
