Monster Dash 5K, 10K, and 1 Mile Logo

Monster Dash 5K, 10K, and 1 Mile

Weslaco, TX

Sat, Oct 31, 2026

In 75 days · Sat, Oct 31, 2026

Don't let race day sneak up

One email during race week. That's it.

When

Saturday, October 31st, 2026

Where

1020 W. 18th Street, Weslaco TX

Distances

10K · 5K · 1 Mile

Typical weather

On this date: rain 4 of the last 10 years

2025

5382°F

dry

2024

7491°F

rain

2023

5059°F

rain

2022

6881°F

rain

2021

6689°F

dry

2020

5481°F

dry

2019

4958°F

rain

2018

7588°F

dry

2017

7082°F

dry

2016

7090°F

dry

Best months to race in Texas

About this race

Event Overview

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: Each race will be professionally timed for accurate results.
  • Custom Finisher Medals: Race themed medals for all who complete the event.
  • Participant T-Shirt: Fully sublimated Dri-fit shirt (if registered by the deadline).
  • Awards: Overall Top 3 Male/Female awards with trophies for the overall winners.

Age Group Awards

  • Categories: Male/Female awards in the 5K and 10K for age groups: 1-7, 8-14, 15-19, 20-29, 30-39, 40-49, 50-59, 60-64, 65+
  • Team Discounts: Available for teams, military, and first responders.
  • Costume Contest: Show off your creativity and win prizes!
  • Vendor Trail: Trick-or-treat vendor trail for the little monsters.

Family Fun Activities

  • Live Music: Entertainment by Pappa Bear & The Cubs, headlined by Reserve.
  • Vendor Market: Explore local vendors and enjoy delicious food trucks.
  • Kids Activities: Plenty of fun activities for children and families.
  • Dog Costume Contest: Bring your furry friend in costume for a chance to win!

Event Experience

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!

More Information

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

Register for the Monster Dash 5K, 10K, and 1 Mile

Course map

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