Monster Mash - Lazybrook / Timbergrove

OCT

31

2026

Celebrate Halloween with the Monster Mash run at Karbach Brewing Co. in Houston. Choose from 10K, 5K, or family distances and join the tradition of running through the city in your favorite costume.

Sat 31 Oct 2026

Houston, Texas

Registration

10 kilometers 5 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Monster Mash

The Monster Mash is a Halloween-themed running event taking place in Houston, Texas. The race venue is located at Karbach Brewing Co. on Karbach Street. This event encourages participants to run through the city streets while wearing costumes. It serves as the seventh race in the nine-part Houston Holiday Series.

Participants can choose from several distance options held on the day of the event:

10K Run
5K Run
1K Kids + Family Fun Run

In addition to the in-person races, remote options are available through a Virtual 10K and a Virtual 5K. The event features an after-party held at the brewery location. Registration for all categories is open until early February, with different fee structures based on the chosen distance. Visit the organization's website for the most recent information.

10 km

10k Run

5 km

5k Run

Kids + Family Fun Run