There are exactly two ways to win a hand of riichi mahjong, and the difference between them decides who pays you, how much, and sometimes whether you’re allowed to win at all.
Tsumo (自摸) means you win on a tile you drew yourself. Ron (栄和) means you win on a tile an opponent discarded. That’s the whole distinction in one sentence, and if all you wanted was the definition, you now have it. But the two win types behave differently in three ways that trip up almost every new player: how the payment is split, whether your hand even qualifies as a win, and a rule called furiten that can quietly switch ron off while leaving tsumo on. This guide walks through all three, in plain English, without dragging you into full scoring math.
If you’re brand new to the game, read How to Play Riichi Mahjong first; it covers the winning shape, the tiles, and how a turn works. This article assumes you already know that a complete hand is four sets plus a pair, and picks up from there.
The Two Ways a Winning Tile Arrives
Every hand plays out the same way up to the moment you win. You draw a tile, you discard a tile, play passes around the table, and you edge closer to a complete hand. Eventually you reach tenpai: one tile away from finishing. From tenpai, your winning tile can reach you through only two doors.
- Tsumo (self-draw): on your turn, you draw the exact tile your hand needs from the wall and declare the win yourself.
- Ron (off a discard): it isn’t your turn, but an opponent discards the exact tile your hand needs, and you claim it to complete your hand.
Both routes produce the same 14-tile winning shape. Both still require your hand to contain at least one yaku, a recognized scoring pattern, without which no win is legal by either route. What changes is everything that happens after the tile lands: the money, the bookkeeping, and one important yaku that only self-draw can grant.
Who Pays, and How Much
This is the difference players feel first, because it hits the score sheet.
Ron: the discarder pays the whole thing. When you ron, the single player who discarded your winning tile pays the full value of your hand, alone. Nobody else at the table pays a point. This is why discarding into someone’s riichi is so punishing, and why reading the table to avoid “dealing in” is the entire foundation of mahjong defense.
Tsumo: everyone pays a share. When you self-draw, there’s no one player to blame for the tile, so all three opponents split the bill. The split is not even, and the rule is worth memorizing because it comes up every hand:
- Non-dealer tsumo: the dealer pays a double share, and each of the other two players pays a single share.
- Dealer tsumo: all three opponents pay an equal share (and dealer hands are worth more to begin with, so those shares are larger).
Here is the whole payment picture in one table:
| Win type | Who pays | How it splits |
|---|---|---|
| Ron (non-dealer win) | the discarder only | full hand value |
| Ron (dealer win) | the discarder only | full value; dealer hands pay about 1.5× |
| Tsumo (non-dealer win) | all three opponents | dealer pays 2 shares, each other player 1 |
| Tsumo (dealer win) | all three opponents | equal shares each |
You’ll see tsumo payments written as two numbers, like 2000/3900. That’s shorthand for a non-dealer self-draw: each non-dealer pays the smaller number, and the dealer pays the larger one. A dealer’s self-draw is written as a single number followed by “all,” like 2000 all, because everyone pays the same.
A fair question: does tsumo or ron pay more? For a hand with identical han and fu, the total collected is designed to be roughly the same either way; the money is just gathered from one pocket (ron) or three (tsumo). In practice tsumo can come out a hair higher, because each player’s share is rounded up to the nearest 100 separately. But the far bigger factor is a yaku that only self-draw unlocks, which is the next section.
Two smaller notes so nothing surprises you. First, if two or more players could ron the same discard, most rulesets award it to the player nearest the discarder in turn order (called atamahane, or “head bump”), though whether multiple players can all collect on one tile is a place where house rules vary. Second, the exact rounding and a few tsumo-payment edge cases differ between rulesets too, so treat the numbers above as the common Japanese standard rather than universal law.
Menzen Tsumo: A Yaku Only Self-Draw Can Give You
Here is the difference that matters most, and the one beginners almost never see coming.
Remember that every win needs a yaku. Riichi mahjong has a yaku specifically for self-drawing a closed hand: menzen tsumo (門前清自摸和), usually just called “tsumo” when people list yaku. It’s worth one han, and it has exactly one condition: your hand must be fully closed (you never called chii, pon, or kan) and you must win by self-draw. There is no equivalent yaku for ron. Winning off a discard, by itself, grants nothing.
Sit with what that implies, because it resolves one of the most common “wait, what?” moments in the game:
A closed hand that has no other yaku can still win by tsumo, but cannot win by ron.
Say you have a closed, complete-shaped tenpai hand with no riichi declared, no value tiles, and a terminal in it (so it isn’t all-simples). It has no yaku. If an opponent discards your tile, the game won’t let you ron; there’s no scoring pattern to make the win legal. But if you draw that same tile yourself, menzen tsumo is your yaku, and the win counts. Same tiles, same shape, opposite outcome, decided purely by which door the tile came through.
This also means self-drawing a closed hand is quietly worth more than winning the identical hand by ron, because the tsumo version carries that extra han the ron version can’t have. It’s a real, if modest, thumb on the scale toward closed play.
Furiten: When Ron Is Off the Table
There’s a second way the game can allow tsumo while forbidding ron, and it catches everyone at least once. It’s called furiten (振聴), and the core rule is simple:
If any tile you’re waiting on is sitting in your own discard pile, you cannot win by ron. You can still win by tsumo.
The logic is a fairness rule: you can’t reject a tile as a discard and then claim it from someone else later. And it’s not limited to the specific tile you already threw. If your hand waits on more than one tile, and even one of those waits appears among your own discards, ron is disabled on your entire wait, not just that tile. Self-draw stays available the whole time.
Two more flavors of furiten exist, and you only need to recognize them, not master them:
- Temporary furiten: if you choose not to ron a winning tile an opponent discards, you’re locked out of ron until your next draw. You can still tsumo in the meantime.
- Riichi furiten: if you’ve declared riichi and then pass up a winning tile (yours or another player’s that you could have ronned), you’re in furiten for the rest of the hand. Tsumo only, from there to the end.
Online, you don’t have to police any of this. Clients like Mahjong Soul detect furiten automatically and simply won’t offer you the ron button when you’re in it, while still offering tsumo when you self-draw. At a physical table it’s on you to notice, which is one more thing a screen quietly handles that real tiles do not.
”Why Won’t the Game Let Me Win?”
If you started on an app, you’ve probably had a finished-looking hand where the win button just wasn’t there. Now you can name the two reasons, and both map directly onto tsumo versus ron.
- No yaku. Your hand has the right shape but no scoring pattern, so it can’t win by either route. The one escape hatch is the previous section: a closed hand can self-draw for menzen tsumo even when it has nothing else. An open hand in the same spot is simply stuck until it reshapes into something with a yaku.
- Furiten. Your hand has a yaku and the right shape, but one of your waits is in your discards, so ron is blocked while tsumo is still allowed. The button is missing on the discard, not on your own draw.
Almost every “the game is broken” moment a beginner hits is one of these two, and neither is a bug. Learn to ask “do I have a yaku?” and “am I furiten?” and the mystery disappears.
Does the Difference Change How You Play?
For your first stretch of games, barely, and you shouldn’t force it. Complete hands, declare riichi when you’re closed and tenpai, and take whichever win the game offers. That alone is most of the value here.
As you improve, the tsumo/ron split starts to inform small decisions. A closed hand leans toward wanting the self-draw, because menzen tsumo adds value and because a closed hand’s other bonuses tend to reward tsumo. A quietly-waiting hand that hasn’t declared riichi (called damaten, staying silent in tenpai) keeps the option to ron without warning the table, at the cost of the riichi yaku and its bonuses. And the whole reason defense exists is the ron rule: since dealing in means paying a hand alone, knowing which tiles are dangerous is how you avoid being the one who pays. None of that is urgent. It’s just where this one distinction eventually leads.
FAQ
What is the difference between tsumo and ron?
Tsumo is winning on a tile you draw yourself; ron is winning on a tile an opponent discards. On a tsumo, all three opponents split the payment (the dealer pays a double share on a non-dealer win). On a ron, the single player who discarded the tile pays the whole hand alone.
What is menzen tsumo?
Menzen tsumo (門前清自摸和) is a one-han yaku awarded for winning by self-draw with a fully closed hand, meaning you never called chii, pon, or kan. There is no matching yaku for winning by ron, which is why a closed hand can sometimes tsumo a win that it would not be allowed to take off a discard.
Why can I tsumo a hand but not ron it?
Two possible reasons. Either your closed hand has no yaku except menzen tsumo, which only applies on a self-draw, so a discard gives you no legal win; or you’re in furiten because one of your waiting tiles is in your own discard pile, which disables ron on your whole wait while leaving tsumo available.
Does tsumo pay more than ron?
For the same han and fu, the totals are built to be roughly equal, just collected from three players instead of one. Tsumo can edge slightly higher because each share is rounded up separately. The more meaningful gap is that a closed hand won by tsumo earns the extra menzen tsumo han, which the ron version of that hand can’t have.
Can you ron a tile you discarded earlier?
No. If a tile you’re waiting on is among your own discards, you’re in furiten and cannot win by ron on any of your waits. You can still win that hand by tsumo. This is a fairness rule: you can’t decline a tile as a discard and then claim the same tile from an opponent.
Is it better to declare riichi or wait silently for a ron?
Both are valid. Declaring riichi adds a yaku and unlocks bonus tiles, but it announces to the table that you’re tenpai. Staying silent (damaten) hides your hand and keeps ron available without warning, but forgoes the riichi yaku and its bonuses. Beginners are better off just declaring riichi; the silent option is a judgment call for later.
Next Steps
You now know the two ways every mahjong hand ends, who pays for each, and the two rules (the yaku requirement and furiten) that decide whether a given win is even allowed. That’s most of what confuses new players about winning.
From here, the natural next thing to shore up is yaku: since every win needs one, and menzen tsumo is only the most basic of them, your win rate rises with every scoring pattern you can recognize. A beginner-ordered yaku reference is coming soon on this site. And if you haven’t yet, How to Play Riichi Mahjong ties all of this back into a full first-game walkthrough. When you’re ready to take tsumo and ron off the screen and onto a table, our guide to picking a proper riichi set covers what you actually need to play.