2 triathlon events in Texas City, Texas

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

• Lago Mar MultiSport Festival [bayoutris.com] [Register at runsignup.com]
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  Sat, May 16, 2026 at 8:25 AM

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  Saturday - May 16 - Youth Triathlon and 5k

  5k Run (All Ages)

  Youth Triathlon - Short Course (Age 6-10). Long Course (Age 11-15)

  Sunday - May 17 - Sprint Triathlon & Duathlon

  Sprint Tri - 500m lagoon...

  Saturday - May 16 - Youth Triathlon and 5k

  5k Run (All Ages)

  Youth Triathlon - Short Course (Age 6-10). Long Course (Age 11-15)

  Sunday - May 17 - Sprint Triathlon & Duathlon

  Sprint Tri - 500m lagoon swim, 12-mile bike, 5k run

  Duathlon - 1.2 mile run, 12-mile bike, 5k run

  This is truly a one-of-a-kind racing experience you won’t want to miss. The only race at a crystal clear lagoon in North America! The start and finish lines will be right on the edge of the Lagoon, which will be waiting for you to enjoy all day after the race. This is by far, the most gorgeous (and safest) body of water you will ever race anywhere!

  Race registration gets you into the Race, plus a free LagoonFest Texas all day pass, and deeply discounted passes for your friends and family! Use code Race to save 50% of admission.

  We expect this race to sell out, so get in on the fun asap!

  CLICK HERE for Spectator Pass info and to see when the Spectator Passes are available for purchase.

  Registering after May 9th, 2025 does not guarantee a shirt or exact size.

  Duathlon Run Swim Triathlon

  12930 Crystal View Blvd, Texas City, Texas, 77568, United States
  OpenStreetMap Google Maps
• Texas City Triathlon, Duathlon, & Aquabike [texascitytri.com] [Register at runsignup.com]
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  Sat, Sep 19, 2026 at 7:25 AM

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  Get ready for a one-of-a-kind multisport racing event on Saturday, Sept 20—the Houston Methodist Texas City Triathlon, Duathlon, & Aquabike! Dive into a beginner-friendly sandy bottom swim, conquer a...

  Get ready for a one-of-a-kind multisport racing event on Saturday, Sept 20—the Houston Methodist Texas City Triathlon, Duathlon, & Aquabike! Dive into a beginner-friendly sandy bottom swim, conquer a flat and fast bike course on the dike, and experience a beautiful run through Bay Street Park's trails. All ages and abilities are welcome to sign up for this annual event. Don't miss your chance to be part of something special. Register today!

  15.3 Miles 18.4 Miles 20.1 Miles Aquabike Cycling Duathlon Run Swim Trail Triathlon

  600 Dike Rd, Texas City, Texas, 77590, United States
  OpenStreetMap Google Maps