AQo vs A8s: preflop equity

Counting every board, the equity split is 69.14% for AQo and 30.86% for A8s, so AQo leads by 38.28 points.

AQo

69.14%

Wins 66.35%, ties 5.60%

A8s

30.86%

Wins 28.05%, ties 5.60%

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

AQo against A8s: the numbers

Exact preflop results for AQo against A8s, in percent
HandWinsTiesLosesEquity
AQo66.3455.59828.05769.144
A8s28.0575.59866.34530.856

We compare an offsuit hand with a suited hand. 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.

AQo is well ahead, and A8s needs a specific kind of board to catch up. 5.60% of boards are ties, so the equity of each hand is its win rate plus half of that.

For context, AQo sits at number 14 of 169 starting hands and A8s at number 21 when each is run against a random hand.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AQo40,897,0003,451,00017,295,000
A8s17,295,0003,451,00040,897,000

36 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand.

AQo against A8s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AQo2.2411.5073.5640.446
A8s0.4463.5641.5072.241

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

Rainbow flops topped by a ten or better are the best for AQo (76.24%); low rainbow flops (nine high or lower) are the worst (57.07%). AQo stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

AQo against A8s by flop texture, in percent
FlopShare of flopsAQo winsTiesA8s winsAQo equity
Rainbow, ten or higher23.90574.4733.53021.99776.238
Rainbow, nine or lower7.04254.8854.37240.74357.071
Two-tone46.52766.3333.51530.15268.091
Monotone5.19261.6404.70833.65263.994
Paired17.33461.23114.80923.96068.635

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

Start from the random-hand figures, 64.43% for AQo and 61.94% for A8s. This opponent changes them by +4.71 and -31.08 points.

AQo and A8s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AQo, all flops69.14464.432+4.7121.07313
AQo, rainbow, ten or higher76.23864.432+11.8061.18323
AQo, rainbow, nine or lower57.07164.432-7.3610.88576
AQo, two-tone68.09164.432+3.6591.05679
AQo, monotone63.99464.432-0.4380.99320
AQo, paired68.63564.432+4.2031.06523
A8s, all flops30.85661.944-31.0880.49813
A8s, rainbow, ten or higher23.76261.944-38.1820.38360
A8s, rainbow, nine or lower42.92961.944-19.0150.69303
A8s, two-tone31.90961.944-30.0350.51513
A8s, monotone36.00661.944-25.9380.58127
A8s, paired31.36561.944-30.5790.50634

Does a shared suit matter?

Two kinds of deal exist here. In 12 of them the hands share a suit and AQo holds 69.96%. In 24 they do not, and it holds 68.73%. AQo does better with a shared suit, by 1.23 points.

AQo against A8s by suit overlap, in percent
DealsSpecific dealsShare of dealsAQo winsTiesA8s winsAQo equity
Share a suit1233.3367.1195.68927.19269.964
No shared suit2466.6765.9585.55328.48968.734

How often this matchup comes up

Counting specific cards, AQo against A8s appears in 36 of the 1,624,350 ordered heads-up deals (0.0022%), and in 72 when the seats are swapped too (0.0044%).

A worked example

Put $100 each into a $200 pot and deal every board once: AQo averages $138.28 back, ahead of its $100 by $38.28, while A8s averages $61.72, short of its $100 by $38.28.

A thousand deals look like this: AQo takes 663, A8s takes 281, 56 are ties.

The same matchup from the other side

A8s against AQo adds nothing new: it is 30.86% for A8s and 69.14% for AQo, the same figures reversed.

The calculator link fills in AsQh against Ad8d, a deal where the two hands share no suit. Change any card to test your own hand. The neighboring matchups below swap one of the two hands for one of similar strength.

How this was computed

The page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 36 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows.

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

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