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running

Monster Dash 5K, 10K, and 1 Mile

Date
October 31, 2026
Distance
10K · 10K MILITARY AND FIRST RESPONDER PRICING · 5K & more

From the Organizer

MONSTER DASH IS COMING TO WESLACO, TX!!!

Get ready for a spooktacular morning of fitness, fun, and fall festivities at the Inaugural Monster Dash 1 Mile, 5K, & 10K at Harlon Block Sports Park!  Whether you’re chasing a personal record, walking with family, or showing off your Halloween costume, Monster Dash is designed to be an unforgettable experience for runners and spectators of all ages!

EVENT FEATURES:
-Chip Timed
-Race Themed Custom Finisher Medals
-Fully Sublimated Dri-fit Participant T-Shirt (if registered by deadline)
-Overall Top 3 Male/Female Awards
-Age Group Awards
-Team, Military and First Responder Discounts Available
-Costume Contest
-Trick-or-Treat Vendor Trail for the Little Monsters
-Kids Activities & Family Fun
-Live Music Entertainment by Pappa Bear & The Cubs, headlined by Reserve
-Vendor Market & Food Trucks
-Dog Costume Contest
-Pumpkin Patch Photo Area

This isn’t just a race… it’s a full Halloween-themed festival experience designed to bring the Rio Grande Valley community together while supporting local businesses, organizations, and healthy living!  Gather your friends, your family, your coworkers, your school organizations, and your running crew and come be part of what is sure to become a new annual tradition!

Stay tuned for more event details...the monsters are just getting started!!!

Events

10K MILITARY AND FIRST RESPONDER PRICING8 AMRegister →
5K MILITARY AND FIRST RESPONDER PRICING8 AMRegister →
1 MILE LITTLE MONSTERS DASH9:15 AMRegister →

Race Location

About This Sport

From Endurance Grid's Founder

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.

The 10K is the distance where running stops feeling like a starting point and starts feeling like a sport. Long enough to require a real training block. Short enough that race day is fully manageable for a first-timer who's put in the work.

Race day energy at a 10K is community at its best — strangers cheering you by name, people moving toward the same goal, an atmosphere that solo training can't replicate. It's fast enough that you'll spend the whole race pushing rather than managing your effort.

This is also the distance that builds the base for everything else. Most athletes who go on to run half marathons, do triathlons, or compete in HYROX started here. What you need: running shoes fitted to your stride, a training plan, and the race on your calendar. The registration is what makes the deadline real.

How long to train: 4–8 weeks for most fitness levels.

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 Dash 5K, 10K, and 1 Mile?
Monster Dash 5K, 10K, and 1 Mile is a running race held in Weslaco, TX 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 Dash 5K, 10K, and 1 Mile?
Saturday, October 31, 2026 in Weslaco, TX at 1020 W. 18th Street, Weslaco, TX. Check the event page for exact start times and wave schedules.
How do I register for the Monster Dash 5K, 10K, and 1 Mile?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Monster Dash 5K, 10K, and 1 Mile

Oct 31, 2026

Register →