Monster Mash Run

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Monster Mash Run 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.

💀 Spots are disappearing fast! Don’t miss the Monster Mash Run on Saturday, October 31 at Karbach Brewing Co.! 👻Grab you...
10/21/2026

💀 Spots are disappearing fast! Don’t miss the Monster Mash Run on Saturday, October 31 at Karbach Brewing Co.! 👻

Grab your crew, plan your costumes, and join us for the 5K, 10K, or Kids & Family 1K. 🎃👟

🚨 Limited spots available—secure yours before we sell out!
https://runsignup.com/Race/TX/Houston/MonsterMashHouston

🎃 Get ready to MASH!Monster Mash is bringing the Halloween fun to Houston on October 31! Lace up, dress up, and join us ...
10/20/2026

🎃 Get ready to MASH!

Monster Mash is bringing the Halloween fun to Houston on October 31! Lace up, dress up, and join us for a spooktacular race day you won’t want to miss. 👻🏃‍♂️

Who’s joining you at the starting line?

Register today: https://runsignup.com/Race/TX/Houston/MonsterMashHouston

🎃 TWO WEEKS TO GO! 👻Monster Mash is just 2 weeks away! Get those costumes ready, lace up your running shoes, and prepare...
10/17/2026

🎃 TWO WEEKS TO GO! 👻

Monster Mash is just 2 weeks away! Get those costumes ready, lace up your running shoes, and prepare for a frightfully fun morning of Halloween miles! 🕸️🏃‍♀️

Join us October 31 and get ready to MASH!

Register today: https://runsignup.com/Race/TX/Houston/MonsterMashHouston

🎃 PRICE INCREASE TOMORROW! 🎃Don’t let this deal disappear into the night! 👻 Register for Monster Mash before prices incr...
10/16/2026

🎃 PRICE INCREASE TOMORROW! 🎃

Don’t let this deal disappear into the night! 👻 Register for Monster Mash before prices increase tomorrow.

Join us on October 31 for a morning of costumes, Halloween fun, and spooky miles at the starting line! 🏃‍♀️🕸️

Register today and save: https://runsignup.com/Race/TX/Houston/MonsterMashHouston

👻 Spooky season is calling… and so is the starting line!Join us for Monster Mash on October 31 for a Halloween morning f...
10/07/2026

👻 Spooky season is calling… and so is the starting line!

Join us for Monster Mash on October 31 for a Halloween morning filled with festive miles, costumes, and plenty of frightful fun. 🎃🏃‍♀️

Grab your crew, pick out your costume, and get ready to MASH!

Register today: https://runsignup.com/Race/TX/Houston/MonsterMashHouston

🎃 ONE MONTH UNTIL MONSTER MASH! 👻Spooky season is almost here, and we’re counting down the days until we take over the s...
09/30/2026

🎃 ONE MONTH UNTIL MONSTER MASH! 👻

Spooky season is almost here, and we’re counting down the days until we take over the streets of Houston for some Halloween miles! 🏃‍♀️🕸️

Grab your costume, gather your crew, and join us for the Monster Mash Run on October 31! 💀🎃

Don’t ghost the start line! 👻

Register today: https://runsignup.com/Race/TX/Houston/MonsterMashHouston

Come dressed to impress at the Monster Mash Run! 🎃👻We’re awarding prizes for Best Individual Costume and Best Group Cost...
09/29/2026

Come dressed to impress at the Monster Mash Run! 🎃👻

We’re awarding prizes for Best Individual Costume and Best Group Costume (groups of up to four participants). Each winner will receive a free 5K entry to a Houston Running Co. event of their choice!

Start planning your costume—we can’t wait to see what you come up with! 🕸️

No tricks, just miles and treats! 🎃👻Celebrate Halloween the best way we know how—with a run! Grab your favorite costume ...
09/23/2026

No tricks, just miles and treats! 🎃👻

Celebrate Halloween the best way we know how—with a run! Grab your favorite costume and join us for the Monster Mash Run on October 31. 🏃‍♀️🍬

Don’t ghost the start line! 👻

Register now: https://runsignup.com/Race/TX/Houston/MonsterMashHouston

🎃 Ready to run into spooky season?Join us for the Monster Mash Run this Halloween for a morning full of festive miles, c...
09/17/2026

🎃 Ready to run into spooky season?

Join us for the Monster Mash Run this Halloween for a morning full of festive miles, costumes, and Halloween fun! 👻 Whether you’re racing for a PR or just here for the spooky vibes, we can’t wait to see you at the start line.

Register today: https://runsignup.com/Race/TX/Houston/MonsterMashHouston

🎃👻 50 DAYS UNTIL MONSTER MASH… AND HALLOWEEN! 👻🎃The countdown to spooky season is officially ON! 🕸️🧡 In just 50 days, we...
09/11/2026

🎃👻 50 DAYS UNTIL MONSTER MASH… AND HALLOWEEN! 👻🎃

The countdown to spooky season is officially ON! 🕸️🧡 In just 50 days, we’ll be running, walking, and celebrating Halloween at the Monster Mash Run!

Grab your costume, gather your crew, and get ready for some frighteningly fun miles. 🏃‍♀️💀🏃‍♂️

Don’t ghost us—register today! 👻

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2032 Karbach Street
Houston, TX
77092

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