Gin Rummy Scoring, Explained

Gin Rummy's scoring hinges entirely on deadwood — the point value of whatever cards in a hand AREN'T part of a completed meld — so the clearest way through it is counting a few real hands card by card, from a simple knock through to the two ways a hand can swing dramatically at the very last moment.

Deadwood values, the number everything else is built from

Number cards count their own pip value (a 7 is worth 7). Face cards (jack, queen, king) count 10 each. Aces count 1. Only cards NOT part of a completed set or run count against a hand at all — melded cards are worth zero deadwood, no matter how high their face value would otherwise be.

Worked example 1: an ordinary knock

Player A knocks holding two complete melds and three unmatched cards: a 9, a queen, and a 2. That's 9 + 10 + 2 = 21 deadwood — too high to knock under most rule sets (the standard threshold is 10 or under), so this example assumes Player A actually has one fewer unmatched card, just a lone 9 (9 deadwood), which does qualify. Player B's hand, once melds are set aside, has an unmatched king, a 6, and a 4: 10 + 6 + 4 = 20 deadwood. Since Player A's 9 is lower, Player A wins the knock, scoring the DIFFERENCE: 20 - 9 = 11 points.

Worked example 2: layoffs reduce the loser's total before scoring

Same knock (Player A at 9 deadwood), but this time Player B can lay off cards onto Player A's already-melded groups. Player A's meld includes a run of 5-6-7 of spades; Player B happens to be holding the 8 of spades as one of their unmatched cards. Laying it off onto Player A's run removes that 8 from Player B's deadwood entirely. If Player B's deadwood was 20 before the layoff (king, 6, 4 as above) and the 8 was actually a fourth unmatched card bringing the original total to 28, laying it off brings it back down to 20 — reducing the final score Player A collects from what it would have been without the layoff option.

Worked example 3: an undercut flips the hand entirely

Player A knocks at what looks like a safe 8 deadwood. Player B, after laying off everything possible onto Player A's melds, is left with just 6 deadwood — LOWER than the knocker's own total. This is an undercut: instead of Player A collecting the difference, Player B does, and gets a bonus on top. The point swing: 8 - 6 = 2 points, plus a 25-point undercut bonus (some tables use 10), for 27 points total awarded to Player B — a hand Player A thought they'd won turns into a 27-point loss purely because they knocked instead of waiting.

Worked example 4: a clean Gin, immune to the undercut that just happened

A different hand: Player A goes all the way to Gin — every single card melded, zero deadwood at all — rather than knocking early. Player B's deadwood, even after laying off everything possible, comes to 15. Player A scores the full 15 points as the opponent's deadwood, PLUS the Gin bonus, commonly 25 points: 15 + 25 = 40 points total. Critically, Player B can never undercut this result, since Gin means there's no deadwood at all left on Player A's side to compare against — the undercut mechanic only exists for a knock, never for Gin.

Worked example 5: the box bonus adding up quietly across a match

Across a full match, Player A wins four separate hands (by knock, undercut, or Gin) and Player B wins two. Independent of whatever deadwood or Gin bonuses were scored in each individual hand, Player A also collects a box bonus (commonly 25 points) for each of those four hands won, adding 100 points total from box bonuses alone, while Player B adds 50 from their two. Over a match with many small, low-value hands, box bonuses can end up being a larger share of the final score than any single knock or Gin actually was.

Worked example 6: reaching the match target with a game bonus attached

The match target is 100 points. Player A's accumulated total (deadwood differences, Gin bonuses, and box bonuses combined across every hand played) crosses 100 first, ending the match. On top of everything already tallied, Player A collects a separate game bonus (commonly 100 points) purely for winning the match itself — a bonus that has nothing to do with any specific hand's deadwood and is added only once, at the very end.

Worked example 7: why knocking early instead of chasing Gin is a real trade-off

Player A could knock right now at 6 deadwood, likely collecting a modest 10-to-15-point difference depending on the opponent's hand. Or Player A could hold off, hoping to draw into Gin next turn for a bigger 25-point bonus on top of the opponent's full deadwood. The risk: waiting one more turn means the opponent also gets another draw, and could knock first, undercut, or simply improve their own hand before Player A gets the chance. This tension — a smaller, safer score now versus a bigger, riskier score later — is the actual strategic core of Gin Rummy, and it's entirely driven by how these specific bonus values compare to each other.

The fastest way to total a hand

1. Count deadwood card by card in the loser's hand only after every possible layoff has been applied to the knocker's melds.
2. If the knocker's deadwood is lower, award the difference to the knocker.
3. If the defender's deadwood, after layoffs, is lower instead, award the difference PLUS the undercut bonus to the defender.
4. If the winning hand was Gin (zero deadwood), skip the comparison entirely — award the opponent's full deadwood plus the Gin bonus, since Gin can never be undercut.
5. Add box bonuses per hand won, and the game bonus once, only at the very end of the match.

For deal size, the knock threshold and what a legal meld actually requires, see the full Gin Rummy rules; the knocking and layoff arguments that come up most often at the table are covered separately on the dispute page.