Set your rules once. Diamond Commander builds a full batting order and fielding plan for your baseball or softball team in seconds, right from your phone. Change anything, anytime. You're always in control.
Use it now in any browser, no install. Native apps coming soon.Command the Diamond without the spreadsheet, the guesswork, or the arguments about playing time.
Switch rules on or off to match your league and your style. Tap generate and the lineup follows your setup. Edit anything by hand and it flags, it never blocks you.
Player pitch, coach pitch, machine pitch, and tee ball, plus softball with a rover. Pick your format and the right rules follow.
Check who showed up, tap generate, and get a full lineup in seconds. Reshuffle or edit anything in a tap.
Rotates fairly across the whole season, remembering who sat and who has or has not played each position.
Dial in competitiveness and rate player skills to put your best gloves where they matter most, without sacrificing fair play.
Dugout-ready lineup cards to print, and a read-only share link for your coaching staff and families.
Add your players, or import them from a spreadsheet. Mark any position a player should not play.
On game day, check in the players who showed up. Late arrivals are easy to add.
Get your lineup, review the checks, then share it or print a dugout card.
Every feature is free through September 2026. After that, it’s just $15.99 CAD per year, per coach, auto-renewing yearly (cancel anytime). No credit card to start.
Diamond Commander handles the rules and the fairness math so you can focus on coaching. No spreadsheets, no debates about playing time, no scrambling in the dugout.