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Standard American Yellow Card

The Standard American Yellow Card (SAYC) is the bidding system the ACBL published so that strangers could sit down and play together: five-card majors, a 15 to 17 point 1NT, a strong artificial 2♣ opening, weak two bids and a short list of conventions.

Updated 13 October 2026

The ACBL wrote SAYC, the Standard American Yellow Card, as the required system for Standard Yellow Card events. It has since become the common language of two players who have never met. In North America it is usually the default for online pickup partnerships, and it is the starting point for most club players learning standard American bridge bidding. The card is deliberately simple, with natural bids, a short list of conventions and no gadgets that need long discussion. This page covers the whole card, one section at a time.

SAYC opening bids

One-level openings show about 12 or 13 to 21 points. Majors promise five cards in every seat. With two five-card or six-card suits, open the higher-ranking. Between the minors, open 1♦ with 4-4 and 1♣ with 3-3.

Opening bids in SAYC
OpeningShows
1♣3+ clubs, 12-21 points
1♦4+ diamonds, 12-21 (three only with 4-4-3-2 and two clubs)
1♥ / 1♠5+ cards, 12-21
1NT15-17, balanced (may hold a five-card suit)
2♣Strong and artificial: 22+ or the playing strength of game
2♦ / 2♥ / 2♠Weak two: six-card suit, 5-11 points
2NT20-21, balanced
3NT25-27, balanced
3 and 4 of a suitPreemptive, usually a seven-card or longer suit

Balanced hands are shown by range: 12 to 14 opens one of a suit and rebids 1NT, 15 to 17 opens 1NT, 18 to 19 opens one of a suit and jumps to 2NT, 20 to 21 opens 2NT, 22 to 24 opens 2♣ and rebids 2NT. If you are unsure whether to open a shapely 11 or 12 count, the rule of 20 is the usual guide.

Notrump bidding

Responses to 1NT in SAYC
1NT=Balanced, 15 to 17 points
2♣=Stayman: asks for a four-card major
2♦=Jacoby transfer to hearts
2♥=Jacoby transfer to spades
2♠=Minor-suit relay: opener bids 3♣, responder passes or bids 3♦
2NT=Invitational, 8-9, no four-card major
3♣ / 3♦=Six-card minor, invitational to 3NT
3♥ / 3♠=Six-card major, slam interest
3NT=To play
4♣=Gerber: asks for aces
4NT=Quantitative: invites 6NT

Over 2NT the same structure moves up a level: 3♣ is Stayman, 3♦ and 3♥ are transfers, and 4♣ is Gerber. If the opponents double 1NT, all these conventions stay on. If they overcall, the conventions are off. Bids become natural, a cuebid of their suit replaces Stayman, and double is negative or penalty by agreement.

Responding to one of a suit

Responses to 1♥ or 1♠
ResponseMeaning
Raise to 26-10 dummy points, 3+ trumps
1NT6-10, not forcing, no fit and nothing better to bid
New suit at the one level6+, 4+ cards, forcing one round
New suit at the two level10+, forcing one round (not to game)
2NTJacoby 2NT: game-forcing raise, 4+ trumps
Raise to 3Limit raise, 10-11 dummy points
3NT15-17, balanced, two-card support
Raise to 4Preemptive: five trumps, a singleton or void, under 10 points
Jump shiftStrong, slam interest

Over a minor opening, responder bids four-card suits up the line at the one level. 1NT shows 6 to 10 without a four-card major, 2NT shows 13 to 15 and forces to game, and 3NT shows 16 to 18. A single raise of the minor is 6 to 10 and a jump raise is a limit raise. SAYC does not use inverted minors. After the opponents overcall, responder uses the negative double, which applies through 2♠.

Opener's rebids

Opener's second bid shows which of three ranges the hand falls in. The ranges are counted in total points, including distribution once a fit is found.

Opener's rebid ranges
RangePointsTypical rebids
Minimum13-151NT, a simple raise, rebid own suit, new suit at a lower level
Medium16-18Jump raise, jump rebid of own suit, a reverse
Maximum19-21Jump to 2NT (18-19 balanced), jump shift, jump to game

A new suit by responder is forcing for one round, so opener with a minimum still bids again. A reverse shows a medium or better hand and forces one round. When responder has limited the hand with a raise or 1NT, opener is the captain and can pass, invite or bid game.

Strong 2♣, weak twos and competition

After 2♣, responder bids 2♦ as a waiting bid with most hands. A positive response shows 8 or more points. A five-card suit is bid naturally, and 2NT shows a balanced 8. Opener's 2NT rebid after 2♦ shows 22 to 24 balanced, and the same Stayman and transfer structure applies.

Over a weak two, a new suit is forcing for one round, a raise is to play and may be preemptive, and 2NT is the only strong inquiry. Opener rebids the suit with a minimum. Holding a maximum, opener shows a feature (an ace or king) in a side suit, or bids 3NT when there is no feature.

Defensive and competitive bidding in SAYC
CallMeaning
Simple overcall8-16 points, usually a five-card suit
1NT overcall15-18, balanced, a stopper in their suit
Jump overcallPreemptive, like a weak two or a three-level opening
Cuebid of their suitMichaels: 5-5 two-suiter
Jump to 2NTUnusual 2NT: 5-5 in the two lowest unbid suits
Double of a suit openingTakeout through 4♦, penalty from 4♥ up
Redouble after their takeout double10+ points, usually no fit

Slam bidding uses Blackwood 4NT with simple ace responses, 5NT for kings, and Gerber over notrump. Leads are fourth best from long suits and top of touching honors; signals are standard, with high encouraging and high-low showing an even number.

A SAYC auction

North
♠A K 5
♥K Q 9 6 3
♦Q J 8 4
♣7
South
♠Q 7 3
♥A J 8 4
♦K 5
♣Q J 8 2
North opens 1♥ with 15 points. South has 13 points and four hearts, a game-forcing raise, so bids Jacoby 2NT. North shows the club singleton with 3♣. South's ♣QJ are wasted opposite it, so South signs off in 4♥.
WNES-1♥Pass2NTPass3♣Pass4♥PassPassPass
Jacoby 2NT and a shortness reply: the partnership stops in game.

The biggest difference between SAYC and two over one is that a two-level new-suit response in SAYC promises 10 points and forces one round only, while in 2/1 it forces to game. That single change brings the forcing 1NT response and a different style of slow, descriptive bidding. Many partnerships learn SAYC first and add 2/1 later. For a one-page summary, see the bridge bidding cheat sheet.

In the Bidding Architect

In the Bidding Architect

The whole yellow card is in the Bidding Architect as a bidding tree, opening by opening, with notes from the ACBL booklet. Copy it as the base of your own system, change what your partnership plays differently, and drill it in practice mode.

Loading the convention from the library.

Open in the Bidding Architect

Frequently asked questions

What is the SAYC yellow card?
SAYC stands for Standard American Yellow Card, the bidding system the ACBL published so that partnerships could play together with little discussion. The name comes from the color of the original ACBL card.
Is there a SAYC convention card?
Yes. The ACBL publishes the SAYC booklet with a filled-in convention card, and many pickup partnerships simply agree to play it as printed. If you change anything, such as adding inverted minors, mark it on your own card.
What is the 1NT range in SAYC?
15 to 17 high-card points, balanced. It may include a five-card major or minor.
Is a two-level response forcing to game in SAYC?
No. A two-level new suit shows 10 or more points and is forcing for one round. In two over one game force it would force to game.
Which conventions are part of SAYC?
Stayman, Jacoby transfers, the 2♠ minor relay, Gerber, Blackwood, Jacoby 2NT, strong 2♣, weak twos with a 2NT feature ask, negative doubles, Michaels and the unusual 2NT.
Is SAYC still played?
Yes. It remains the default for pickup partnerships online and at ACBL clubs, even though most regular partnerships now play two over one.
Where can I practice SAYC bidding?
The full yellow card is in the Bidding Architect as a bidding tree. Copy it into your own systems and drill the auctions in practice mode.
Put it into practice

The complete yellow card as a bidding tree, ready to copy and adapt as your own.

Open the SAYC system in the Bidding Architect
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