One of the first things new bridge players encounter — and often find confusing — is the scoring. Unlike most card games where you just count points, bridge has multiple scoring systems, bonuses for making contracts, penalties for failing, and vocabulary that sounds like it was invented by accountants who loved card games.
This guide explains everything clearly. By the end, you'll understand what you're chasing when you bid, why doubling matters, and how the game rewards aggressive — but accurate — bidding.
The Foundation: Trick Points
In bridge, you bid a contract and then try to make it. The contract specifies a number of "odd tricks" above six — so a contract of 2♠ means you need to take 8 tricks (6 + 2). A contract of 3NT means 9 tricks.
Each suit has a point value per trick:
- Minor suits (♣ and ♦): 20 points per trick
- Major suits (♥ and ♠): 30 points per trick
- Notrump: 40 points for the first trick, 30 per trick after
So a 2♠ contract made (8 tricks) scores: 2 × 30 = 60 points. A 3NT contract made (9 tricks) scores: 40 + 30 + 30 = 100 points. These "trick points" are what go below the line in rubber bridge — and what count toward your contract level in duplicate.
Game and Part Score
The magic number is 100 trick points. If your contract scores 100 or more trick points, you've bid and made a game. Game contracts are:
- 3NT (40 + 30 + 30 = 100) ✅
- 4♥ or 4♠ (4 × 30 = 120) ✅
- 5♣ or 5♦ (5 × 20 = 100) ✅
Anything less is a "part score" — and part scores accumulate in rubber bridge until they reach 100 (called being "in game") or are cleared by the rubber ending.
This is why you'll hear bridge players say "bid your games." Making a part score when you could have bid game is a significant missed opportunity — games earn hefty bonuses.
Game Bonuses
Making a game earns a bonus on top of your trick points:
- Not vulnerable: +300 game bonus
- Vulnerable: +500 game bonus
"Vulnerable" means your side has already won one game in a rubber. Being vulnerable makes the stakes higher — bigger bonuses for success, bigger penalties for failure.
Slam Bonuses
Go for all the tricks and earn extra rewards:
- Small slam (12 tricks, 6-level contract):
- Not vulnerable: +800
- Vulnerable: +1,250
- Grand slam (13 tricks, 7-level contract):
- Not vulnerable: +1,300
- Vulnerable: +2,000
Bidding and making a grand slam is one of the most satisfying achievements in bridge. The slams are worth pursuing aggressively when you have the cards — but don't bid them thin. A failed slam attempt often hands opponents a large score.
Overtricks
If you make more tricks than your contract required, those extra tricks score at the normal trick rate — but they don't count toward game. They're just bonus points. In rubber bridge they matter a little; in duplicate bridge they matter a lot (more on that below).
Undertricks: Going Down
Fail to make your contract and the defense scores penalty points. The number of tricks you fall short is your "undertricks."
Undoubled (not vulnerable): 50 points per undertrick
Undoubled (vulnerable): 100 points per undertrick
So going down 2 tricks undoubled, not vulnerable, costs your side 100 points. Going down 2 tricks vulnerable costs 200. This is why vulnerability matters when deciding whether to "sacrifice" — bid high knowing you'll go down, trying to push the opponents out of their game.
Doubling and Redoubling
When you think the opponents' contract will fail, you can double. This changes the scoring dramatically.
If you double and they make it: Their trick score is doubled, they get a 50-point bonus (called "the insult"), and any overtricks score 100 (not vulnerable) or 200 (vulnerable) each. Doubling a contract they're going to make is expensive.
If you double and they go down: The penalties increase sharply:
- Not vulnerable, doubled: 100 (1st), 200 (2nd), 200 (3rd), 300 each after
- Vulnerable, doubled: 200 (1st), 300 each after
The opponents can redouble if they think they'll make it — doubling everything again. Redoubles are rare but exciting.
Honors
In rubber bridge only: if one hand holds all five trump honors (A-K-Q-J-10 of trumps) or all four aces in a notrump contract, that hand scores a bonus of 150 points (four honors in trumps scores 100). Honors are unique to rubber bridge — they don't exist in duplicate.
The Rubber Bonus
In rubber bridge, the first side to win two games wins the rubber. The rubber bonus:
- Winning 2–0 (opponents won zero games): +700
- Winning 2–1: +500
After the rubber ends, all points are totaled, converted to hundreds, and compared. The difference goes to the winning side.
Duplicate Scoring: IMPs and Matchpoints
Most club and tournament play uses duplicate bridge — every pair plays the same hands, so luck is removed from the deal. The scoring systems are different:
Matchpoints
In matchpoint scoring, you compare your score on each board against every other pair that played the same hand. Beat them → get points. Lose to them → give them points. Everything is relative. This rewards doing slightly better than average — even one extra trick can be a top score.
Matchpoints is the format of most club games and the "Swiss" portion of many tournaments. It rewards consistency and accuracy on small contracts.
IMPs (International Match Points)
In IMP scoring (used in team games and many major tournaments), raw score differences are converted to a nonlinear scale. A 10-point swing is 0 IMPs. A 500-point swing might be 11 IMPs. A 2,000-point swing is around 17 IMPs.
This compression means one disaster doesn't sink a match, and many small wins add up. IMP scoring rewards bidding and making games and slams, and avoiding large penalties — it's a more "real" measure of bridge quality than matchpoints.
Putting It Together: A Scoring Example
North-South bid and make 4♠ (10 tricks). They are not vulnerable.
- Trick score: 4 × 30 = 120
- Game bonus (not vulnerable): +300
- Total: 420
Now suppose East-West had bid 5♦ as a sacrifice and gone down 2 tricks, not vulnerable:
- Penalty: 100 + 100 = 200
The sacrifice saved East-West 220 points (420 - 200). But if they'd gone down 3? 300 points — more than the game was worth. Knowing these thresholds is why experienced players can calculate "sacrifice math" at the table.
Why Scoring Shapes Bidding
Once you understand scoring, bidding becomes logical. You bid game because the bonus is worth it — even missing game by a trick or two is often better than stopping in a part score when game was available. You bid slams because the bonuses are enormous. And you carefully weigh whether to sacrifice based on what the opponents' game or slam is worth versus your expected penalty.
Good bidding is fundamentally about points — earning them, protecting against them, and calibrating risk against reward.
If you want to practice applying bridge scoring in live hands, try Brian, your AI bridge bidding coach. Brian explains every bidding decision in plain English — including when a slam try is worth the risk and when a game is within reach. It's the fastest way to develop real bridge judgment.
Explore our learning guides and the bridge glossary for more foundational concepts.
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