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Lineup Builder · Pure JavaScript, no AI, no data leaves your device

Build Your Lineup Matrix

Answer 8 questions. Get a complete position-by-inning lineup — with pitching, catching, EH slots, and development priorities all handled. Runs entirely in your browser. No accounts. No API keys. No costs.

1
Roster
2
Format
3
Priority
4
Pitching
5
Catching
6
Rotation
7
EH Rules
8
Special

Step 1 — Roster

Enter each player's name and assign a tier. Tier 1 = strongest, Tier 2 = developing, Tier 3 = beginners.

Team Name
Players (0 added)
Building your lineup...
Resolving all your constraints.
This takes a fraction of a second.

Lineup Matrix