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Live demo · Free-team rules

Try it.
Generate a defensive lineup in seconds.

Choose a common game situation and see how Inningly fills the open positions, rotates the bench, and works around the decisions a coach has already made.

Choose a situation

Situation details

    coach-selected Lineup rules

      Locked = coach already assigned Pitcher Catcher

      More than a position randomizer

      Built around your decisions—not random positions

      A random lineup generator can shuffle players into positions. Inningly solves a different problem: building an inning-by-inning defensive plan around the players who are available, the pitching plan and assignments you have already set, and the playing-time rules you want followed.

      With a 12-player roster, there are nearly 80 million ways to choose and arrange nine defenders for just one inning. A full game adds sitting goals, position requirements, pitching decisions, and coach preferences.

      Each generated lineup is a valid starting point—not a command. Generate another option, keep the parts you like, and make the final coaching decisions yourself.

      What a team adds

      Build with your roster and your games

      Create a Free Inningly team to move from sample scenarios to lineups built for your players.

      • Use your actual roster and game schedule
      • Mark player availability and set your pitching plan
      • Generate additional options while preserving your locked choices
      • Make manual adjustments and refine the batting order
      • Save your lineup and prepare game-day materials

      Learn more

      Understand the problem, the rules, and the complete workflow

      Why lineup planning gets complicated

      See how quickly the number of possible defensive lineups grows—and why manually balancing an entire game becomes difficult.

      Understand the math

      Set lineup rules and restrictions

      Learn how sitting, pitching, fairness, and position rules shape the lineups Inningly can generate.

      Learn about the rules

      Use the Lineup Builder to your advantage

      Follow the complete process from availability and pitching plans through generation, refinement, saving, and game-day preparation.

      See the complete workflow

      Build your next lineup with your players

      Add your roster, choose the rules that fit your team, set your pitching plan, and turn the generated result into a lineup you can adjust and save.

      Create your free team