How does the generator keep things fair?

Each inning it sits the players who have sat the least so far, then fills positions giving infield spots to whoever has the fewest infield innings. Across a game that evens out bench time and spreads infield and outfield reps. The playing-time tab shows the resulting split so you can verify it.

Can I lock a player at a position?

Yes. Set any cell in the grid before generating — for example your ace at pitcher in innings 1 to 3 — and the generator keeps those locked cells and builds the rest of the rotation around them.

Why do I sometimes get a warning I cannot fully avoid?

With small rosters or tight constraints, some fairness goals collide — for instance, everyone reaching two infield innings may be impossible if there are not enough infield slots in the game. The tool tells you which constraint is blocking it so you can relax that setting.

Does it know pitching and catching rules?

It warns when a player catches four or more innings and also pitches, which Little League disallows for that day, and it can keep your pitchers and catchers off the bench. It does not track pitch counts — use the pitch count tracker for Pitch Smart rest rules.

Will the same roster always give the same lineup?

Each generation uses a new random seed, so pressing Auto-generate again gives a different but equally fair arrangement. That is handy when a particular result does not suit your matchup.

Baseball Lineup Generator

Enter your roster and this builds a balanced fielding rotation for you — spreading bench innings evenly, rotating players through the infield, and keeping the same player off the bench two innings in a row when it can. Regenerate for a fresh fair result, lock anyone into a spot, and adjust by hand from there.

Lineup generator

Opponent

Date

Innings

Min infield innings

Max bench innings

Keep P and C off the bench

Lock a player to a position by setting their cell before generating — locked cells are kept. Regenerate for a different fair result.

Player	Inn 1	Inn 2	Inn 3	Inn 4	Inn 5	Inn 6
#1 Player 1
#2 Player 2
#3 Player 3
#4 Player 4
#5 Player 5
#6 Player 6
#7 Player 7
#8 Player 8
#9 Player 9
#10 Player 10
#11 Player 11
#12 Player 12

Inning 1: P is empty.
Inning 1: C is empty.
Inning 1: 1B is empty.
Inning 1: 2B is empty.
Inning 1: 3B is empty.
Inning 1: SS is empty.
Inning 1: LF is empty.
Inning 1: CF is empty.
Inning 1: RF is empty.
Inning 2: P is empty.
Inning 2: C is empty.
Inning 2: 1B is empty.
Inning 2: 2B is empty.
Inning 2: 3B is empty.
Inning 2: SS is empty.
Inning 2: LF is empty.
Inning 2: CF is empty.
Inning 2: RF is empty.
Inning 3: P is empty.
Inning 3: C is empty.
Inning 3: 1B is empty.
Inning 3: 2B is empty.
Inning 3: 3B is empty.
Inning 3: SS is empty.
Inning 3: LF is empty.
Inning 3: CF is empty.
Inning 3: RF is empty.
Inning 4: P is empty.
Inning 4: C is empty.
Inning 4: 1B is empty.
Inning 4: 2B is empty.
Inning 4: 3B is empty.
Inning 4: SS is empty.
Inning 4: LF is empty.
Inning 4: CF is empty.
Inning 4: RF is empty.
Inning 5: P is empty.
Inning 5: C is empty.
Inning 5: 1B is empty.
Inning 5: 2B is empty.
Inning 5: 3B is empty.
Inning 5: SS is empty.
Inning 5: LF is empty.
Inning 5: CF is empty.
Inning 5: RF is empty.
Inning 6: P is empty.
Inning 6: C is empty.
Inning 6: 1B is empty.
Inning 6: 2B is empty.
Inning 6: 3B is empty.
Inning 6: SS is empty.
Inning 6: LF is empty.
Inning 6: CF is empty.
Inning 6: RF is empty.
Player 1 sits innings 1 and 2 back to back.
Player 2 sits innings 1 and 2 back to back.
Player 3 sits innings 1 and 2 back to back.
Player 4 sits innings 1 and 2 back to back.
Player 5 sits innings 1 and 2 back to back.
Player 6 sits innings 1 and 2 back to back.
Player 7 sits innings 1 and 2 back to back.
Player 8 sits innings 1 and 2 back to back.
Player 9 sits innings 1 and 2 back to back.
Player 10 sits innings 1 and 2 back to back.
Player 11 sits innings 1 and 2 back to back.
Player 12 sits innings 1 and 2 back to back.
Player 1 never plays the infield.
Player 2 never plays the infield.
Player 3 never plays the infield.
Player 4 never plays the infield.
Player 5 never plays the infield.
Player 6 never plays the infield.
Player 7 never plays the infield.
Player 8 never plays the infield.
Player 9 never plays the infield.
Player 10 never plays the infield.
Player 11 never plays the infield.
Player 12 never plays the infield.

What "fair" means here

Fair does not mean identical — positions differ in demand and skill. The generator aims for even bench time first, then balanced infield exposure, while respecting who can pitch and catch. You stay in control: it is a fast, sensible starting point, not a black box, and every cell is editable afterward. If you would rather build the order yourself, the lineup card maker opens on a blank grid.

Baseball Lineup Generator

Lineup generator

What "fair" means here

Frequently asked questions

Related tools

Lineup Card Maker

Pitch Count Tracker

Printable Baseball Scorecard

Tryout Evaluation Form