Diamond Manager
Know who is legal to pitch before you get to the field — live pitch counts, rest days, fair playing time and 32 ready-made practice plans. Built for the dugout, and it works with no signal.
A look inside
About Diamond Manager
Diamond Manager does the three jobs a youth baseball coach still does on a clipboard: tracking who is legal to pitch, building a lineup that is fair, and running practice.
It is built for the dugout — big controls, one hand, readable in direct sun, and everything works with no signal at all.
Who can pitch
- Count pitches with a button you can hit without looking
- Published daily maximums and rest-day tables, applied by each player’s league age
- See what a decision costs before you make it: “3 more pitches reaches 21 — that becomes 1 day of rest”
- The rules that catch coaches out: the finish-the-batter exception, the three-day consecutive block, catching four innings ending a day on the mound, and pitching then catching
- An eligibility calendar that answers the weekday question — who is legal on Saturday — before you are standing on the field working it out
Fair lineups
- Continuous batting order or nine-player, drag to reorder
- A fair-start rotation so the same kids do not always lead off
- A field diagram for every inning, with auto-rotation you can undo
- A mandatory-play board tracking six defensive outs and one at-bat per player
- Shortfalls carry into the next game, so nobody quietly sits two weeks running
Practice you can run from your phone
- 32 ready-made session plans across Tee Ball, Coach Pitch, Minors and Majors
- 168 timed blocks with coaching cues, stations and diagrams
- Search by drill, then run the whole session from your pocket
- A two-minute warning chime, and the screen kept awake
Paperwork that holds up
- A pitching eligibility log with signature lines, ready to print or share
- Lineup cards, playing-time recaps and CSV exports
- Designed to be legible in black and white, because that is how a board reads them
Built to be trusted
- Every pitch is saved on your device the instant you tap, before anything else happens — no network call is ever in the way
- Optional iCloud backup runs in the background, so a new phone can restore a whole season
- No account, no ads, no analytics, no player contact information and no location
- Player names stay on your devices and in your own private iCloud
Pricing
The roster and the practice catalog are always free. When you create your first team, the live pitch counter, the lineup builder and the exports are unlocked for 14 days at no charge — no payment details and no account. After that those features need a subscription: 2.99 USD per month or 14.99 USD per year. Family Sharing is supported.
Get to Saturday already knowing who can pitch.
Disclaimer: Diamond Manager is an independent app and is not affiliated with, endorsed by or sponsored by Little League Baseball, Incorporated, or any league or association. It is a companion to your official scorebook, not a replacement. Always confirm eligibility against your league’s official book and rules.
