Category Archives: Fastpitch

• About Marco Estrada

  

  Marco Estrada Jr., a son of the baseball-playing Estrada family of Los Angeles, is a former professional shortstop (Seattle Mariners organization) turned successful entrepreneur. Along with his father and brothers, he developed one of the best tools ever invented for the game—the Hitting Jack-It System™.

  

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  • Know the Throw: Arm Health Key to Baseball Success
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  • All Hail the Homer!

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