AQs vs KQs: preflop equity

The exact count puts AQs at 71.42% and KQs at 28.58% when the two hands see all five board cards.

AQs

71.42%

Wins 70.85%, ties 1.14%

KQs

28.58%

Wins 28.01%, ties 1.14%

Equity counts a tie as half a win. Exact over every board.

AQs against KQs: the numbers

Exact preflop results for AQs against KQs, in percent
HandWinsTiesLosesEquity
AQs70.8481.13928.01371.418
KQs28.0131.13970.84828.582

AQs and KQs are both suited hands. The two hands share a rank, and the one with the better other card dominates: it wins most kicker battles when that shared rank hits.

A lead of 42.84 points is large but not decisive: KQs still takes about 280 of every 1,000 deals. Ties are part of the picture: 1.14% of boards end in a split pot, and each side counts that as half a win.

Among the 169 starting hands, AQs is number 10 and KQs is number 16 by strength against a random hand.

Boards behind the percentages: 20,547,648 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AQs14,558,000234,0005,756,000
KQs5,756,000234,00014,558,000

Exact total: 12 deals times 1,712,304 boards. The other three counts come from the five-decimal percentages and are rounded to the nearest thousand, so read them as approximate.

AQs against KQs read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AQs2.4991.4113.5700.400
KQs0.4003.5701.4112.499

The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call.

Who is ahead on which flops

Across the five flop textures AQs' equity moves by 19.86 points, from 64.21% on monotone flops to 84.07% on low rainbow flops (nine high or lower). AQs stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

AQs against KQs by flop texture, in percent
FlopShare of flopsAQs winsTiesKQs winsAQs equity
Rainbow, ten or higher23.13868.8490.74330.40869.220
Rainbow, nine or lower7.77183.4511.23215.31784.067
Two-tone46.54369.6580.76229.58070.039
Monotone5.21562.4693.47534.05664.206
Paired17.33373.5831.93524.48274.550

A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank.

Compared with a random hand

Each hand has a baseline against a random hand: 66.21% for AQs, 63.40% for KQs. Here the change is +5.21 and -34.82 points.

AQs and KQs here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AQs, all flops71.41866.209+5.2091.07868
AQs, rainbow, ten or higher69.22066.209+3.0111.04548
AQs, rainbow, nine or lower84.06766.209+17.8581.26972
AQs, two-tone70.03966.209+3.8301.05785
AQs, monotone64.20666.209-2.0030.96975
AQs, paired74.55066.209+8.3411.12598
KQs, all flops28.58263.400-34.8180.45082
KQs, rainbow, ten or higher30.78063.400-32.6200.48549
KQs, rainbow, nine or lower15.93363.400-47.4670.25131
KQs, two-tone29.96163.400-33.4390.47257
KQs, monotone35.79463.400-27.6060.56457
KQs, paired25.45063.400-37.9500.40142

Does a shared suit matter?

These two classes cannot share a suit in any legal deal, so there is only one row to read: AQs holds 71.42% in every deal of this matchup.

AQs against KQs by suit overlap, in percent
DealsSpecific dealsShare of dealsAQs winsTiesKQs winsAQs equity
Share a suit00.00not possiblenot possiblenot possiblenot possible
No shared suit12100.0070.8481.13928.01371.418

How often this matchup comes up

How often does it happen? 12 of the 1,624,350 ordered deals (0.0007%) are AQs against KQs, and 24 (0.0015%) if either hand may sit in either seat.

A worked example

A $100 all-in from each player makes a $200 pot, and the exact equity says AQs gets $142.84 of it on average and KQs gets $57.16.

Scaled to 1,000 deals, that is roughly 709 wins for AQs, 280 for KQs and 11 chopped pots.

The same matchup from the other side

If you came looking for KQs against AQs, the numbers are the same with the hands swapped: 28.58% and 71.42%.

Open the calculator with AsQs against KhQh already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking.

How this was computed

Each figure is a complete count over boards. Take the 12 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops.

Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used.

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