Third Coast Training – Swimming & Triathlon Coaching

Third Coast Training empowers athletes across Greater Houston to reach their peak performance through expert multisport coaching. We specialize in adult beginner swim lessons and comprehensive year round triathlon prep for swimmers of all ages, levels and abilities, helping competitors conquer every leg of the race with confidence. We offer private 1:1 indoor pool swimming instruction, open water swim instruction, water safety, lactate testing, personalized endurance coaching, professional in-home massage therapy, and we provide individualized plans tailored to your unique goals. Our veteran-owned approach combines technical expertise with supportive guidance to ensure you achieve your personal best safely, efficiently, and saving you time.

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Customer's reviews

I would highly recommend Johnny Shelby LMT to others, based on my experience. I am a retired massage therapist, and a recreational extreme sports participant. I appreciate the time he took to listen to my comments and complaints on my physical feelings of pain & numbness. I was evaluated for range of motion and we discussed our initial therapy plan. At all times during my therapy session was I comfortable and free to communicate on pressure, temperature of table, and my questions were answered. My therapeutic body work was effective, and I did receive some immediate relief. However, I know that massage therapy, assisted stretching benefits are progressive and we must get ahead of the curve. I look forward to continuing my therapy and feeling better ~ Bevin J
I went to Jonny for the six hour private swim workshops after attending a 2 days total immersion swimming workshop. Being a newbie to triathlon, I struggle with body balance and speed. Jonny is very patient guiding me on my learing journey. He videotaped me at our first meet for recordkeeping on my bad swim habit and guranteed that those will be corrected at the end of my swim lessons. Seeing the videos along with Jonny's instruction after each hourly session is very helpful. I also got time to practice between sessions. Jonny is very encouraging which motivated me to go on despite my frustration from time to time. Overall I am seeing great progress and it is worth the long drive (every time I need to take at least two hours on the road back and forth from where I live). Thank you Jonny for bearing with me and helping me achieve my goal! ~ Faith J
2025 Update: finally completed my first triathlon and came back to Third Coast for more swim help! Coach Johnny has done an outstanding job identifying my issues and providing drills to practice them. He keeps it focused on one drill at a time so I’m not overwhelmed. 2024: I came into Third Coast without a clue on how to freestyle swim properly. John broke down the basics and worked with me on form and technique, providing clear instruction and video feedback. Still have a long way to go on swimming, but all the tools and cues provided, I now have confidence and will definitely go back for additional instruction as my triathlon goals change. ~ Dan O

Blog

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With the cooler fall weather settling in, now is the perfect time for Houston triathletes to reset, reflect, and refine their technique for the next… Posted on: September 29, 2026

Contact information

Sunday Closed
Monday 6:00 AM - 7:00 PM
Tuesday 6:00 AM - 7:00 PM
Wednesday 6:00 AM - 6:00 PM
Thursday 6:00 AM - 7:00 PM
Friday 6:00 AM - 7:00 PM
Saturday 6:00 AM - 7:00 PM

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