Self-Drawn Win vs Discard Win: How Payouts Differ
In Hong Kong Mahjong, how you win matters almost as much as what you win with. A self-drawn win and a discard win with the same hand can result in very different payouts. Understanding this difference is crucial for both strategy and settling up at the end of the game.
The Two Ways to Win
Discard Win (食糊 / Sik Wu)
You complete your hand by claiming another player’s discarded tile. The player who discarded the winning tile is called the shooter (出銃 / cheut chung).
Self-Drawn Win (自摸 / Zi Mo)
You complete your hand by drawing the winning tile yourself from the wall. No other player “shot” you the tile.
The Key Payment Difference
This is the most important thing to understand:
| Win Type | Who Pays |
|---|---|
| Discard Win | Only the shooter pays |
| Self-Drawn Win | All three other players pay |
With a discard win, the unlucky player who discarded your winning tile bears the entire cost alone. With a self-drawn win, the pain is spread across all three opponents.
But there’s more: a self-drawn win is also worth 1 extra faan (自摸 bonus), which increases the base payout amount.
How Payouts Are Calculated
Let’s walk through the math with concrete examples.
Base Payment Structure
In Hong Kong Mahjong, payouts double with each faan through the low end, then the jumps flatten out. Here’s TileBuddy’s table:
| Faan | Each payer (self-drawn) | Shooter (discard win) |
|---|---|---|
| 3 | $8 | $16 |
| 4 | $16 | $32 |
| 5 | $24 | $48 |
| 6 | $32 | $64 |
| 7 | $48 | $96 |
| 8 | $64 | $128 |
(These are example amounts using a common base unit. By default TileBuddy has the shooter pay double the table amount. “Half-shooter” tables have the shooter pay the table amount and each self-draw payer pay half. Your table’s actual amounts depend on the agreed-upon base and where your group sets the faan limit.)
Example 1: A 5-Faan Hand
Scenario A: Discard Win (5 faan):
- Only the shooter pays: $48
- Total received by winner: $48
Scenario B: Self-Drawn Win (5 faan + 1 faan zi mo = 6 faan):
- Each of three players pays: $32
- Total received by winner: $96
The self-drawn win earns twice as much as the discard win in this case.
Example 2: A 3-Faan Hand
Scenario A: Discard Win (3 faan):
- Shooter pays: $16
- Total: $16
Scenario B: Self-Drawn Win (3 faan + 1 zi mo = 4 faan):
- Each of three pays: $16
- Total: $48
Here the self-drawn win pays 3 times the discard win. This is the range where the payout table still doubles cleanly, so the extra faan doubles each payment, and three payers at that amount beat one shooter at double rate.
Example 3: A 7-Faan Hand
Scenario A: Discard Win (7 faan):
- Shooter pays: $96
- Total: $96
Scenario B: Self-Drawn Win (7 faan + 1 zi mo = 8 faan):
- Each of three pays: $64
- Total: $192
Now the self-drawn win pays twice as much. The ratio shrinks as you move up the table because each additional faan stops doubling the per-person amount past 4 faan.
Why Self-Drawn Wins Are So Powerful
The math reveals two compounding factors:
- Three payers: three players pay instead of one, though a shooter pays double
- Extra faan: The +1 faan bonus bumps the per-person amount up a tier (a full doubling at the low end, a smaller jump once you’re past 4 faan)
These multiply together, making self-drawn wins significantly more valuable. This is why experienced players often aim for a self-drawn finish when they’re one tile away (聽牌 / ting pai).
Strategic Implications
For the Winning Player
- If you’re one tile away from winning, consider whether your winning tile has already been discarded. If copies are in the discard piles, your chances of drawing it yourself decrease.
- Sometimes it’s worth waiting an extra turn for a self-drawn win rather than immediately claiming a discard, especially with a high-faan hand.
- But don’t get greedy: a discard win beats no win at all.
For Defending Players
- If someone is clearly close to winning (one away), be extremely careful with your discards.
- It’s sometimes safer to let them self-draw than to risk being the shooter. If they self-draw, you share the cost with two other players. If you shoot them, you pay alone.
- This is the foundation of defensive play in mahjong.
The Shooter’s Dilemma
Being the shooter is the worst outcome for the losing side. You pay the whole amount alone, at double the table rate, instead of splitting it three ways. This is why defensive discarding is such an important skill: avoiding being the one who throws the winning tile.
Special Cases
Robbing a Kong (搶槓)
If a player tries to add a tile to an existing revealed pung to make a kong, and that tile would complete your hand, you can “rob the kong” and declare a win. This is treated as a discard win, with the kong-declaring player as the shooter.
Last Tile Win (海底撈月)
Winning on the very last tile drawn from the wall gets an additional faan bonus. If it’s a self-draw of the last tile, the bonus stacks with the regular self-drawn bonus.
Dealer Bonus
Some groups pay the dealer (East) at a higher rate, often 1.5x, win or lose, as a house rule. TileBuddy doesn’t apply this by default; East pays and collects at the same rate as any other seat unless your table has agreed to add it.
Quick Reference: Discard vs Self-Drawn
| Factor | Discard Win | Self-Drawn Win |
|---|---|---|
| Who pays | Shooter only | All 3 opponents |
| Bonus faan | None | +1 faan (自摸) |
| Risk to losers | High (for shooter) | Shared evenly |
| Strategic value | Good | Great |
| Typical total payout | 1x | ~2-3x |
FAQ
Is it always better to self-draw?
In terms of payout, yes, self-drawn wins are always worth more. But you can’t always control whether you draw the tile or someone discards it. Don’t pass up a discard win hoping for a self-draw unless you have a strong reason.
Does the self-drawn bonus always apply?
Yes, in standard Hong Kong Mahjong rules, a self-drawn win always earns +1 faan. Some house rules may modify this, but it’s virtually universal.
What if two players can win from the same discard?
In standard rules, if multiple players can win from the same discard, the player closest in turn order (counterclockwise from the discarder) gets priority. Some groups allow multiple winners from a single discard: clarify this before playing.
How does TileBuddy handle these calculations?
TileBuddy automatically adjusts payouts based on whether the win was self-drawn or from a discard. Just indicate the win type, and the payment calculator figures out exactly who owes what.
Stop doing payment math in your head. Download TileBuddy for free on the App Store and let the app calculate every payout instantly.