10 events in Montgomery County, Texas

From big races to Saturday morning group runs—find 5k events and connect with the local endurance sports community.

• Spanish Honor Society's First Annual St. Jude's 5K Run/Walk (Montgomery ISD) [runsignup.com]
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  Sat, Apr 18, 2026 at 8:30 AM

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  Montgomery high school presents, Spanish Honor Society's first annual ST. Jude's 5k Run/Walk. Don't want to Participate? That's okay too, you can donate here...

  Montgomery high school presents, Spanish Honor Society's first annual ST. Jude's 5k Run/Walk. Don't want to Participate? That's okay too, you can donate here http://fundraising.stjude.org/SpanishHonorSociety. 100% of the profit from this event goes straight to St. Jude's Children's Cancer Research Center to help fight childhood cancer, where no family ever receives a bill. Registration will include a free T-shirt, finishers medal, and a fun time. Want a challenge? The top three male and female finishers will receive an additional winners medal upon finishing (by completion, not exact time). Packet pickup will be held day-of at 7:00am, the race will follow at 8:30am. This event is great for all ages and supports a cause bigger than ourselves. The event will also include a snow cone truck, raffles, face painting, and balloon animals. See you at the starting line!

  5k Run Walk

  22628 TX-105, Montgomery County, Texas, 77356, United States
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• The Race to Grand Oaks [runsignup.com]
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  Sat, May 09, 2026 at 7:15 AM

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  Calling all future, current and past Grand Oaks Grizzlies, family and friends and community members. Join us in a friendly competition to see which GOHS feeder school has the most Grizzly pride while...

  Calling all future, current and past Grand Oaks Grizzlies, family and friends and community members. Join us in a friendly competition to see which GOHS feeder school has the most Grizzly pride while we take on a 1k, 2M or 5K course throughout the campus of GOHS.

  The Race to Grand Oaks serves as a means to embrace healthy competition between all of the feeder schools while promoting our Grizzly Pride! Proceeds from this event will be shared between the GOHS and York Girls' Cross Country / Track teams. In addition, every registered participant will be eligible to cast their vote for their school of choice within the GOHS feeder zone. The top 3 schools with the most votes will earn a monetary donation back to their school’s PE department.

  Want to add more votes for your school?! A $5.00 donation to The Youth Alliance (501c3) will earn you one (1) extra vote for your school. Donate as much as you would like to help boost your school to the top! The Youth Alliance is a local non-profit that “works with schools to support students with food insecurities, provide supplies and opportunities.”

  1k 2 Miles 5k Run

  4800 Riley Fuzzle Rd, Montgomery County, Texas, 77386, United States
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• Run To Rebuild Texas - 5k Fun Run [runsignup.com]
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  Sat, May 23, 2026 at 8:00 AM

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  Run To Rebuild Texas – 5K Fun Run

  Run To Rebuild Texas is a community 5K Fun Run supporting Let’s Help Texans Inc., a local 501(c)(3) nonprofit focused on flood prevention, land restoration, and...

  Run To Rebuild Texas – 5K Fun Run

  Run To Rebuild Texas is a community 5K Fun Run supporting Let’s Help Texans Inc., a local 501(c)(3) nonprofit focused on flood prevention, land restoration, and growing food in our communities.

  This is our first fundraising event, and every registration helps launch projects that turn unused lawns into native plant spaces, community gardens, and healthier soil that absorbs rainwater and benefits local families.

  Our goals are big:

  • Stronger neighborhoods

  • Safer drainage

  • Local food access

  • Texans helping Texans

  This is a fun run open to all ages and fitness levels. Walk, jog, or run and be part of building something meaningful for our community. This event will not be timed and is for fun and funding!

  5k Fun Run Run Walk

  22152 Baptist Encampment Rd, Montgomery County, Texas, 77357, United States
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• Big Rivers Splash & Dash [runsignup.com]
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  Sat, Jun 13, 2026 at 7:15 AM

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  Big Rivers Waterpark proudly presents... the 2nd Annual Big Rivers Splash & Dash — Benefitting the TANGO2 Research Foundation!

  Lace up your sneakers and get ready to make a splash for a cause that...

  Big Rivers Waterpark proudly presents... the 2nd Annual Big Rivers Splash & Dash — Benefitting the TANGO2 Research Foundation!

  Lace up your sneakers and get ready to make a splash for a cause that hits close to home. Join us Saturday, June 13th 2026 for the Big Rivers Splash & Dash, where every step you take supports critical research and awareness for TANGO2 — a rare genetic disorder that’s personally impacted the Galland family, owners of Big Rivers.

  There’s a race for everyone:

  • Aquathlon (500m Swim & 5K Run)

  • 10K Dash

  • 5K Dash

  • Kids Dash (10 & Under)

  • Virtual Runs (for those that can't make it & our long-distance supporters!)

  The scenic course winds through Big Rivers Waterpark and around our picturesque lake, giving you a unique view of the park. Expect fun, energy, and excitement at every turn — with the added reward of supporting a truly meaningful cause.

  Why We Run:

  The TANGO2 Research Foundation was a lifeline for Megan Galland, who faced her first health crisis at just six months old during a family trip. Initially misdiagnosed, Megan eventually received answers thanks to the tireless work of the TANGO2 Foundation. Now, we're running to give that same hope to other families.

  WHAT YOU GET:

  • Custom Dynamic Polytech Race Shirt

  • Custom Interactive Finisher Medal

  • Official Custom Race Bib

  • Chance at Overall and Age Group Awards

  • Access to Special Event Swag (limited quantities – first come, first served!)

  **INCLUDED EARLY ENTRY to Big Rivers Waterpark & Adventures!! (race day ONLY)

  PRE & POST-RACE FUN:

  DJ and Music

  Sponsor Booths

  Pre-Race Warm-Up

  Finisher Tent with Snacks, Refreshments, and Celebration

  Course Details:

  Kids Dash: a spunky 100-200m fun run around the front of the waterpark! (Parents welcome to join!)

  **Aquathlon (NEW!!): brisk 500m Swim around our lazy river and an adventurous 5K run around our lake and through the waterpark!

  5K/10K: adventurous run around our lake and through the waterpark!

  Virtual Option: chart your own course from anywhere and still receive your race swag!

  Want to Go the Extra Mile?

  Become a fundraiser or make a direct donation through our registration site.

  Top Fundraiser: Full refund on registration + special recognition

  Donate $25 or more: Get a discount on your registration (Bronze=$5, Silver=$10, Gold=$25)

  VOLUNTEER & RUN:

  Sign up for our “Volunteer Then Run” program! Help with packet pickup, medals, water stations, and more — then lace up for the 5K or 10K.

  Join us for a race that’s more than miles — it’s a movement. Let’s Dash for Discovery, Splash for Support, and Run with Heart.

  #SplashAndDash2025 #RunForTANGO2 #BigRiversWaterpark

  5k 10k Aquathlon Fun Run Run Swim Virtual

  23101 TX-242, Montgomery County, Texas, 77357, United States
  OpenStreetMap Google Maps
• Explore The Falls Race [runsignup.com]
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  Sat, Nov 07, 2026 at 7:30 AM

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  Explore The Falls Race is the perfect balance of road and trail racing that navigates around Lake Holcomb and the streets of The Falls at Imperial Oaks community. Send the kids off and watch them...

  Explore The Falls Race is the perfect balance of road and trail racing that navigates around Lake Holcomb and the streets of The Falls at Imperial Oaks community. Send the kids off and watch them finish their 1k run before you begin your own race. Whether you participate in the 5K or challenge yourself for a little more trail running on the 10K course, make the family proud and pick up one of the few hidden frozen turkeys for the upcoming holidays!

  Kids 1K Course is an out and back, all on a safe, blocked off road.

  The 5K Course is 1 mile road, 1 mile gravel/grass/trail, 1 mile road (out and back).

  The 10K Course is 1 mile road, 4 miles trail, 1 mile road.

  The 2 mile walk/run option will be only on concrete road (out and back).

  The 5K and 10K run on the same roads and trails. The 5K race turns around at the 1.55 mile mark and the 10K continues on to run around Lake Holcomb then returns back on the same road (Imperial Promenade). See maps HERE.

  7:30 - Kids 1K Race (12&Under)

  7:45 - 10K Start

  7:50 - 5K Start

  7:51 - 2-mile walk Start

  Included with your registration:

  • Race Photos Included for 2025

  • Event Shirt

  • Finisher Medal

  • On-course nutrition

  • Race bib

  • Age group awards

  • "Swag Bag" with items and coupons from our sponsors

  • Race Expo

  Registrations after Thursday, October 16th will NOT be guaranteed shirt size*

  Race Week Info:

  Packet Pick Up #1

  Thursday 11/6 5 P.M.- 7 P.M.

  Location: Industrious Spring

  4489 Riley Fuzzel Rd. Spring, TX 77386

  Packet Pick Up #2

  Friday 11/7 5 P.M-7 P.M.

  Location: Lake Club (race start/finish at Falls Clubhouse)

  31220 Birnham Woods Dr. Spring, TX 77386

  Race Day Schedule:

  6:30 Volunteer Meeting

  7:30 Kids 1K

  7:45 10K (or shortly after kids 1k clears the course)

  7:50 5K

  7:51 2-mile Walk

  9:00ish Kids 1K Awards

  9:05ish 5K & 10K Awards

  10:00 Course Closes

  10:00 Expo Closes

  On course nutrition:

  You will be able to access the hydration station twice on the 5K (mile 1.3 and 1.8) and three times on the 10K (mile 1.3, 2.5, 4.7). The biggest gap without water would be between mile 2.5 & 4.7 leaving roughly 2 miles without hydration. Plan your race accordingly.

  1k 2 Miles 5k 10k Gravel Run Trail Walk

  31220 Birnham Woods Drive, Montgomery County, Texas, 77386, United States
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• Last Man Standing [runsignup.com]
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  Sat, Dec 05, 2026 at 8:00 AM

  Description

  This race follows a “last man standing” format. Runners must complete a 5K lap every 50 minutes. Each lap must be finished before the 50-minute timer reaches zero. When the timer hits zero, a new 5K lap begins for all remaining runner.

  5k Last Man Standing Run

  13621 Lake Breeze Ln, Montgomery County, Texas, 77318, United States
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• Woodlands Marathon [finishers.com]
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  Sat, Feb 20, 2027

  Description

  Ready to experience an unforgettable sporting event at the Woodlands Marathon? 🏃‍♂️

  5k 10k Half Marathon Marathon Run

  Montgomery County, Texas, United States
  OpenStreetMap Google Maps

Local Clubs & Organizations