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High School Programs
Indoor Leagues and fall development opportunities for High School players (9th-12th grade)
The off-season is a critical time to improve your game. Grand Slam USA offers high school indoor leagues and fall development programs that combine live game action with focused instruction, helping players compete, stay sharp, and get ready for their school seasons.
High School Indoor League
The High School Indoor League is designed for 9th–12th graders who want to face live pitching, compete in a structured environment, and keep their timing sharp through the winter. Games are played indoors at Grand Slam USA with professional umpires.
To view current league dates, details, and registration options, visit the High School Indoor League pages (below) or call 515-278-1070 for more information.
Indoor League fills quickly each year. Players can register as individuals to be placed on a team, or coaches can enter full teams in the appropriate league when that option is offered.
High School Fall League
The High School Fall League is entering its 27th year and is built for 9th–12th graders who want vital repetitions and live game experience in the fall. In addition to the weekly games, the league now includes built-in development sessions so players can work on skills during the week and apply them in weekend games.
Full information, schedules, and registration are available on the High School Fall League page; spots are limited, so early registration is encouraged.
Fall League Clinics are designed for players who want structured, position-specific training in a competitive environment. Clinics run throughout the fall league season and focus on infield/outfield defense, pitching/catching, and hitting.
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