Monster Mash
- Date
- October 31, 2026
- Location
- 2032 Karbach Street, Houston, TX
- Distance
- 5K Run · 10K Run · Kids + Family Fun Run & more
From the Organizer
Karbach Brewing Monster Mash Run... the name says it all! This is without a doubt the BEST Halloween-themed run and after-party in town! Join our Monster Mashers and hit the streets of Houston running in full costume!
Don't forget, this makes race number 7 out of 9 in the Houston Holiday Series!
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
77°
Typical Low
58°
Chance of Rain
16%
Based on US Climate Normals data from Houston-Port, 9 mi from the venue.
Host City
About Houston, TX
Population
2,300,419
as of 2023
Elevation
52 ft
Nearest Airport
HOU
William P. Hobby Airport · 13 mi
Time Zone
Central Time
From Endurance Grid
A big city race. Expect multiple lodging options and plenty to do the day before.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Monster Mash, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Running races near Houston, TX
11th Annual Pearland XC Summer Running Camp
Less than a mile away
ZFT Run Club Run-Walk-Crawl 9 Year Anniversary 5K & Celebration
5K
Less than a mile away
Run Juneteenth Day 5K/10K/13.1 HOUSTON
Half Marathon · 10K · 5K
Less than a mile away
Sloth Run 5K/10K/13.1 HOUSTON
Half Marathon · 10K · 5K
Less than a mile away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Monster Mash?
- Monster Mash is a running race held in Houston, Texas on October 31, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Monster Mash?
- Saturday, October 31, 2026 in Houston, Texas at 2032 Karbach Street, Houston, TX. Check the event page for exact start times and wave schedules.
- How do I register for the Monster Mash?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Monster Mash
Oct 31, 2026