American Mahjong tournaments · free · works offline
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Scoring in this version is simple: one total per player per round, straight off the score card. Seats A/B/C/D are East/North/West/South. Detailed scoring follows the MJMP rules: +10 self-pick, +20 jokerless (not Singles & Pairs), +10 each on a wall game, thrower −10/−20/−25 by the winner's exposures. MJMP fixed is the sanctioned rotation (players keep their letter all day). Variety plans the whole day to keep people from meeting twice — perfect for 16, 28, 40, 52 or 64 players, close for everything else.
League: everything above sets up how each session runs. Roster, check-ins and every setting carry over from one session to the next; use End session, start next once a session's rounds are done. "Rounds" is how many rounds happen in one session (not the whole season) — a league keeps going until you say it's over.
Players
Season
Rounds
Enter each player's round total straight from the table's score card. Leave a box blank until you have the card — a blank is not a zero.
Standings
The app records scores; the director rules on disputes.
Season standings
Live standings on players' phones Director Plus
Everything is saved on this device. Save a backup gives you a file you can keep or move to another computer; Open a backup brings it back. Nothing leaves this device unless you create a live standings link or a cloud backup — and then only the event you choose to share or save.