This is without a doubt the BEST Halloween-themed run and after-party in town! Join over 2000 Monster Mashers hit the streets of Houston in full costume!
Our team looks forward to this post-race party all year... join us! The annual Monster Mash 5k/10k and Candy Corn Kids K Runs are a Houston area holiday tradition! This costume run has grown in size from a couple hundred in 2007 to as many as 2,000 in recent years. This large costumed run is a ton of fun for the entire family and beer from Karbach Brewery for those 21 and over.
05/06/2026
🎃 Houston’s favorite Halloween race is back! Grab your costume and join us for Monster Mash at Karbach Brewing Co. with 5K, 10K, Kids K, festive vibes, and the ultimate post-race party 👻
Register now: https://runsignup.com/Race/TX/Houston/MonsterMashHouston
04/29/2026
Run spooky. Run festive. Run Monster Mash. 🎃
Join us this Halloween for one of Houston’s favorite themed races.
https://runsignup.com/Race/TX/Houston/MonsterMashHouston
04/14/2026
Only 200 days until Halloween. 🎃
Perfect time to sign up for the Monster Mash.
https://runsignup.com/Race/TX/Houston/MonsterMashHouston
04/01/2026
Ghosts, goblins, and great vibes 👻🎉
Monster Mash Houston is ready to bring the fun — costumes encouraged!
👉 https://runsignup.com/Race/TX/Houston/MonsterMashHouston
03/25/2026
Bring the whole crew for Halloween fun! 👨👩👧👦🎃
Monster Mash Houston has something for every ghoul and goblin.
👉 https://runsignup.com/Race/TX/Houston/MonsterMashHouston
03/18/2026
Run like a monster… walk like a zombie! 🧟♀️
Monster Mash Houston registration is OPEN!
👉 https://runsignup.com/Race/TX/Houston/MonsterMashHouston
03/11/2026
Costumes? Check. Candy? Check. Community fun? Double check. 🎃
Join us for Monster Mash Houston — it’s more than a race, it’s a Halloween tradition!
👉 https://runsignup.com/Race/TX/Houston/MonsterMashHouston
03/04/2026
Get your spook on and your run on! 👻
Monster Mash Houston is creeping up — costumes, miles, and Halloween vibes. Register now!
👉 https://runsignup.com/Race/TX/Houston/MonsterMashHouston
02/23/2026
Monster Mash registration is live! Lock in early bird pricing when you register today: https://runsignup.com/Race/TX/Houston/MonsterMashHouston
02/16/2026
Spooky miles and festive vibes—Monster Mash 2026 is ready for you! Register today: https://runsignup.com/Race/TX/Houston/MonsterMashHouston
02/09/2026
Monster Mash registration is open! 👻 Sign up now and join the fun: https://runsignup.com/Race/TX/Houston/MonsterMashHouston