Individual / team
Individual or team.
Individual or team.
Results update in real time.
Standings update automatically with every game. Byes are supported too.
The more you record,
the more fun mahjong gets
Enter your score, and points are calculated automatically.
From casual sets to full leagues, every game stays on record.
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Games recorded
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Leagues
Trusted by everyone from pro players to casual amateurs
Recording is how you improve
See your daily form at a glance.
Total pt, average rank, and top-2 rate are all tallied automatically. A calendar view shows your hot and cold streaks.
- Analyze overall and monthly stats with a wide range of metrics
- Yearly and monthly stats calendars reveal your winning and losing streaks
- Also tracks stats by rule and yakuman records
Instantly see who you struggle against and which seat suits you.
Automatically tallies stats by seat (East, South, West, North) and results against each opponent, turning gut feelings about compatibility into hard numbers.
- Automatically tallies average rank and points by seat
- See your all-time record against each opponent to spot your easy marks and your nemeses
- Also saves records like your highest and lowest scores
Standings and graphs, built automatically.
A full-featured league system for both individual and team play.
- Supports up to 50 players
- Set up titles like highest score and more
- Track close races with a points trend graph
Everyone at the table can follow along in real time.
Share via link, QR code, or X. No account needed for others to follow results in real time.
- One-tap sharing via link, QR code, or X
- No account needed to view
- Works on smartphone, tablet, and PC
Mahjong with friends,turned into a real league
Run a league as serious as the pros, all in Janreco.
Trend graph
See the close races.
See the close races.
That's what makes it exciting.
A graph tracks points after every game, making the final stretch even more thrilling.
Individual stats
Your strengths,
Your strengths,
backed by numbers.
Avg rank, top rate, last rate, and more: your individual league stats, tallied automatically. See where to improve, and your game gets better.
Titles
It's not just about winning.
It's not just about winning.
14 titles to celebrate every player.
Highest score, top-2 rate, yakuman king, and more: league-specific titles calculated automatically. Everyone gets their moment to shine.
Recording is easy: just 4 steps
Set up your rule once. After that, just enter your scores.
1
Set up your rule
Set your starting points, uma, chips, and more just once. It's applied automatically after that.
New rule
Choose template
M.LEAGUE rules
JPML official rules
Saikouisen rules
JPML Association rules
Rule name
Required
M.LEAGUE rules
Rank points (pt)
1st
30
2nd
10
3rd
-10
4th
-30
2
Choose your players
Just type a name for each player at your table. No account required.
Select players
3 / 4 players
Choose from players you've played with
Takashi
Kenji
Yuta
+ Add
3
Enter your score
Just enter the score after the game. Points are calculated automatically.
Game result
Game 3
You
East
41,300
+61.3
Takashi
South
28,200
+8.2
Kenji
West
19,400
-20.6
Yuta
North
11,100
-48.9
4
Review your stats
Look back at today with your score sheet and graphs. Share it instantly via QR code or link.
Today's score sheet
M.LEAGUE rules
| You | Takashi | Kenji | Yuta | |
|---|---|---|---|---|
| 1 | +47 | +6 | -34 | -19 |
| 2 | -20 | +10 | -40 | +50 |
| 3 | +52 | -16 | -30 | -6 |
| 4 | +5 | +41 | -50 | +4 |
| Total | +84 | +41 | -154 | +29 |
Share it with your table via link or QR code
Before you get started
Do I need to install an app?
No.Janreco works right in your browser. Add it to your phone's home screen to launch it like an app.
Do the friends at my table need an account too?
No.Other players just need a name to be recorded. You can share the score sheet via link or QR code, and if they're already Janreco users, you can invite them to link up your stats.
Does it support 3-player mahjong and chip rules?
Yes.You can fine-tune everything: 3-player and 4-player mahjong, chips, uma and oka, tie-break handling, and even float-based rank points.
Will my recorded game data stick around forever?
Yes, for good.Recorded results are saved automatically, so you can look back anytime. Even if you switch devices, logging in with the same account carries everything over.
Starting with today's game,start keeping the record
Even at the table right now, you can get started in a minute.
No install needed
No sign-up for your table
Free to start