17975 Interstate 35 N Building C
Schertz, TX 78154


MON – SAT 12PM – 8PM

SUN 12PM – 6PM


[email protected]
(210) 757 3421

Grand Slam Training is committed to the total development of players of all ages. Our mission is to provide players with the tools and knowledge to reach their fullest potential. Grand Slam players learn to compete in everything they do, and to put in the extra effort on the uncommon standards of the game. Our goal is to teach the importance of excelling at: the fundamentals, professionalism, internal confidence, leadership, communication skills, accountability, navigating failure, situational strategies, process and preparation. We pride ourselves on helping young men and women prepare for the next level in all facets of the game. Giving them the skills and awareness to continuously grow and get better. Most importantly we want to provide a learning environment of ballplayers having fun playing the game we all love. Players of all ages and levels have something to learn here at Grand Slam.


Grand Slam Training boasts a fully turfed, 24,000 square foot indoor facility equipped with 4 full-size cages, 3 bullpen mounds, pitching machines and more. We have made it a mission to provide all the gear necessary to train at the highest level. We provide personalized arm care and arm strengthening routines utilizing bands, weighted ball routines, Vertimax resistance training, 7 day throwing plans and more. Our coaches supply exceptional knowledge and experience for all ages, having played and coached at collegiate level and higher. They offer an experience for players to reach their next level potential.


  • Coming soon to the Grand Slam Training facility will be an outside addition! We are adding outdoor batting cages along the back side of the facility as well as full-size outdoor bullpen mounds. This will expand our hitting / bullpen housing by double! 
  • “Player’s Lounge” will be available to members of Grand Slam soon! Sit down and relax with your teammates before or after a workout. With cold drinks, snacks, a 65” tv and comfy lounge chairs, members can enjoy some extra time with their friends anytime during open hours. Never wait for a ride uncomfortably again!



Grand Slam Training

Find Us inside the new Stars Athletic Training Center

17975 Interstate 35 N Building C, Schertz, TX 78154

[email protected]

210 757 3421