Mahjong Leaderboard
The free score tracker your mahjong group has been waiting for. Rankings, round-by-round scoring, and automatic payment settlement — all in one place.
Free forever · No install needed · Works on mobile
Live Leaderboard
See cumulative rankings update in real time after every finalized game.
Round-by-Round Scoring
Log scores, seats, and wind positions for every round as you play.
Auto Settlement
Instantly see who owes who — split payments calculated automatically.
Detailed Stats
Unlock deep analytics like Deal-in Rate, Call Rate, and average hand value.
How It Works
Create Your Group
Sign in with Google and set up your mahjong group in seconds. Invite players with a link.
Record Every Game
Log each round's scores, seats, and winds as you play. Uma is calculated automatically.
See Rankings & Settle Up
Check the live leaderboard and get a clear payment breakdown after every session.
Frequently Asked Questions
What is this service?
A free web app for tracking scores, rankings, and payments in your mahjong group. Create a group, add players, and record game results session by session.
What information is stored when I sign in with Google?
Only your name, email address, and profile picture are stored via Google OAuth. This information is used solely to identify your account within the service and is never shared with third parties or used for marketing.
How can I contact you?
Send a DM on X (Twitter) and I'll get back to you quickly. @0xneoguri
Does it work for riichi mahjong?
Yes! It supports riichi mahjong scoring with uma points, configurable starting points, and cumulative ranking across sessions. It works equally well for Hong Kong mahjong and other regional styles.
Can I share my group's leaderboard with others?
Yes — each group has a unique link you can share with players. Members who join with an invite code can view the leaderboard and game history in real time.
What is Detailed Recording Mode?
Detailed Recording Mode is built for riichi mahjong players who want automatic score calculation. It tracks seat rotation, honba counters, riichi sticks, and dora counts (including aka-dora and ura-dora) — just enter the hand value and the app computes everything.
What are Sessions?
A session groups multiple games played in one sitting. It tracks the player roster, calculates combined payment settlement across all games, and lets you share results with a single link.