ATs vs AQo: preflop equity

Before any board card is dealt, AQo holds 69.37% equity against ATs, which leaves ATs with 30.63%.

ATs

30.63%

Wins 27.87%, ties 5.52%

AQo

69.37%

Wins 66.61%, ties 5.52%

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

ATs against AQo: the numbers

Exact preflop results for ATs against AQo, in percent
HandWinsTiesLosesEquity
ATs27.8735.51966.60830.632
AQo66.6085.51927.87369.368

ATs is a suited hand and AQo is an offsuit hand. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up.

That is a clear edge, 69.37% to 30.63%, but ATs still wins often enough that one hand proves nothing. Of every 100 boards, about 5.52 are split pots, and the equity figures already include them.

Among the 169 starting hands, ATs is number 13 and AQo is number 14 by strength against a random hand.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
ATs17,182,0003,402,00041,059,000
AQo41,059,0003,402,00017,182,000

Exact total: 36 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.

ATs against AQo read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
ATs0.4423.5881.5012.265
AQo2.2651.5013.5880.442

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

Low rainbow flops (nine high or lower) are the best for AQo (80.00%); monotone flops are the worst (64.19%). AQo stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

ATs against AQo by flop texture, in percent
FlopShare of flopsATs winsTiesAQo winsATs equity
Rainbow, ten or higher23.17728.8613.13068.00930.426
Rainbow, nine or lower7.77117.4335.12877.43919.997
Two-tone46.52729.8793.44166.68031.600
Monotone5.19233.4794.66561.85635.811
Paired17.33324.16614.72561.10931.528

Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank.

Compared with a random hand

The table below sets each hand against its own random-hand baseline: a change of -33.97 points for ATs, from 64.60%, and +4.94 for AQo, from 64.43%.

ATs and AQo here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
ATs, all flops30.63264.602-33.9700.47416
ATs, rainbow, ten or higher30.42664.602-34.1760.47098
ATs, rainbow, nine or lower19.99764.602-44.6050.30954
ATs, two-tone31.60064.602-33.0020.48915
ATs, monotone35.81164.602-28.7910.55433
ATs, paired31.52864.602-33.0740.48803
AQo, all flops69.36864.432+4.9361.07661
AQo, rainbow, ten or higher69.57464.432+5.1421.07981
AQo, rainbow, nine or lower80.00364.432+15.5711.24167
AQo, two-tone68.40064.432+3.9681.06158
AQo, monotone64.18964.432-0.2430.99623
AQo, paired68.47264.432+4.0401.06270

Does a shared suit matter?

Looking only at deals where the hands share a suit, AQo has 70.12%; looking only at deals where they do not, 68.99%. AQo does better with a shared suit, by 1.13 points.

ATs against AQo by suit overlap, in percent
DealsSpecific dealsShare of dealsATs winsTiesAQo winsATs equity
Share a suit1233.3327.0765.60067.32429.876
No shared suit2466.6728.2715.47966.25031.011

How often this matchup comes up

You will meet this exact matchup 0.0044% of the time in a random heads-up deal: 72 of 1,624,350, counting either seat order.

A worked example

A $100 all-in from each player makes a $200 pot, and the exact equity says AQo gets $138.74 of it on average and ATs gets $61.26.

A thousand deals look like this: AQo takes 666, ATs takes 279, 55 are ties.

The same matchup from the other side

The mirror image, AQo against ATs, is 69.37% to 30.63%, and its address redirects to this page.

Try AsTs against AhQd in the calculator: the hands share no suit, and every card can be changed. The links after it are the closest matchups in the ranking.

How this was computed

Nothing here is simulated. The 36 deals of ATs against AQo fall into a few suit patterns, each dealt against all 1,712,304 boards, with both best five-card hands compared on every board. Ties give each hand half a win, and the flop rows count a board under each of its ten flops.

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

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