Monster Dash 5K, 10K, and 1 Mile
About this race
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!!!
Pick your distance
Running
10K
10K MILITARY AND FIRST RESPONDER PRICING
5K
5K MILITARY AND FIRST RESPONDER PRICING
1 MILE LITTLE MONSTERS DASH
Race-day daylight
We have no recorded weather for Weslaco yet, but sunrise and sunset follow from the venue and the date.
The sun rises at 7:40 AM and sets at 6:50 PM local time (CDT) in Weslaco on October 31, 2026 — 11h 10m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Other races near Weslaco
Different organizers, within 40 miles, in the next three months
Faith, Hope and Love 5k
Miles For Hope 5k
Thankful For Jesus 5K and 1 Mile fun run
Harlon Block Half Marathon
🏃 Plan Your Next Race in Weslaco
Find upcoming events by distance:
- Weslaco 5K Races 10 races
- 10K Run Events in Weslaco 2 races
- Weslaco Running Calendar 2026 11 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 12 Weslaco events
Spotted something wrong? Tell us and we'll fix it.