AJs vs AQo: preflop equity

Counting every board, the equity split is 69.66% for AQo and 30.34% for AJs, so AQo leads by 39.32 points.

AJs

30.34%

Wins 27.57%, ties 5.53%

AQo

69.66%

Wins 66.90%, ties 5.53%

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

AJs against AQo: the numbers

Exact preflop results for AJs against AQo, in percent
HandWinsTiesLosesEquity
AJs27.5745.52966.89730.338
AQo66.8975.52927.57469.662

AJs, a suited hand, plays AQo, 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.

AQo is the clear favorite, though AJs gets there on roughly one board in 3. Split pots make up 5.53% of the boards, and both equity figures count them as half a win each.

Place 11 of 169 belongs to AJs and place 14 belongs to AQo in the ranking against a random hand.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AJs16,997,0003,408,00041,237,000
AQo41,237,0003,408,00016,997,000

The total is exact: 36 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand.

AJs against AQo read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AJs0.4363.6271.4952.296
AQo2.2961.4953.6270.436

In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity.

Who is ahead on which flops

Split by what the flop looks like, AQo peaks at 81.47% on low rainbow flops (nine high or lower) and bottoms out at 64.40% on monotone flops. AQo stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

AJs against AQo by flop texture, in percent
FlopShare of flopsAJs winsTiesAQo winsAJs equity
Rainbow, ten or higher23.17728.8513.08868.06130.395
Rainbow, nine or lower7.77115.8765.31778.80718.534
Two-tone46.52729.5323.45267.01631.258
Monotone5.19233.2694.67062.06135.604
Paired17.33324.14814.71861.13431.507

Flop types: rainbow means three different suits, two-tone means one suit twice, monotone means one suit three times, paired means a repeated rank.

Compared with a random hand

The table below sets each hand against its own random-hand baseline: a change of -35.05 points for AJs, from 65.39%, and +5.23 for AQo, from 64.43%.

AJs and AQo here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AJs, all flops30.33865.393-35.0550.46393
AJs, rainbow, ten or higher30.39565.393-34.9980.46481
AJs, rainbow, nine or lower18.53465.393-46.8590.28342
AJs, two-tone31.25865.393-34.1350.47800
AJs, monotone35.60465.393-29.7890.54446
AJs, paired31.50765.393-33.8860.48181
AQo, all flops69.66264.432+5.2301.08117
AQo, rainbow, ten or higher69.60564.432+5.1731.08029
AQo, rainbow, nine or lower81.46664.432+17.0341.26437
AQo, two-tone68.74264.432+4.3101.06689
AQo, monotone64.39664.432-0.0360.99944
AQo, paired68.49364.432+4.0611.06303

Does a shared suit matter?

When the hands share a suit, AQo holds 70.42%; when they do not, it holds 69.28%. AQo does better with a shared suit, by 1.14 points.

AJs against AQo by suit overlap, in percent
DealsSpecific dealsShare of dealsAJs winsTiesAQo winsAJs equity
Share a suit1233.3326.7735.60967.61829.577
No shared suit2466.6727.9755.48866.53730.719

How often this matchup comes up

The class pair covers 36 combinations of specific cards in a fixed seat order, 0.0022% of 1,624,350, and 72 (0.0044%) in either order.

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average AQo takes back $139.32 of it, which is $39.32 more than it put in, and AJs takes back $60.68, $39.32 less than it put in.

Scaled to 1,000 deals, that is roughly 669 wins for AQo, 276 for AJs and 55 chopped pots.

The same matchup from the other side

AQo versus AJs is this same page seen from the other hand: 69.66% for AQo, 30.34% for AJs.

Try AsJs 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

Each figure is a complete count over boards. Take the 36 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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