AQo vs 87s: preflop equity

Over all 1,712,304 boards that can follow this deal, AQo finishes with 59.12% of the pot and 87s with 40.88%.

AQo

59.12%

Wins 58.91%, ties 0.42%

87s

40.88%

Wins 40.67%, ties 0.42%

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

AQo against 87s: the numbers

Exact preflop results for AQo against 87s, in percent
HandWinsTiesLosesEquity
AQo58.9070.41840.67559.116
87s40.6750.41858.90740.884

One side is an offsuit hand, the other is a suited hand. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other.

That is a modest edge, the kind that shows up over many hands and is easy to miss in one. The tie share is 0.42%: on those boards the pot is chopped and neither hand wins outright.

Ranked by equity against a random hand, AQo is number 14 of the 169 starting hands and 87s is number 100.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AQo48,416,000344,00033,431,000
87s33,431,000344,00048,416,000

The total is exact: 48 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.

AQo against 87s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AQo1.4461.6982.4590.692
87s0.6922.4591.6981.446

The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity.

Who is ahead on which flops

Break the boards down by their first three cards and AQo is strongest on rainbow flops topped by a ten or better (66.66%) and weakest on low rainbow flops (nine high or lower) (35.11%). Watch for low rainbow flops (nine high or lower): on those flops 87s holds the better equity.

AQo against 87s by flop texture, in percent
FlopShare of flopsAQo winsTies87s winsAQo equity
Rainbow, ten or higher24.71766.5740.16833.25866.658
Rainbow, nine or lower6.31334.8250.55964.61635.105
Two-tone46.66757.3940.23542.37157.512
Monotone5.21256.4412.35741.20257.620
Paired17.09161.5970.63737.76661.916

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

Relative to a random opponent, AQo changes by -5.31 points (baseline 64.43%) and 87s by -7.06 points (baseline 47.94%).

AQo and 87s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AQo, all flops59.11664.432-5.3160.91749
AQo, rainbow, ten or higher66.65864.432+2.2261.03455
AQo, rainbow, nine or lower35.10564.432-29.3270.54484
AQo, two-tone57.51264.432-6.9200.89260
AQo, monotone57.62064.432-6.8120.89428
AQo, paired61.91664.432-2.5160.96095
87s, all flops40.88447.936-7.0520.85289
87s, rainbow, ten or higher33.34247.936-14.5940.69555
87s, rainbow, nine or lower64.89547.936+16.9591.35378
87s, two-tone42.48847.936-5.4480.88635
87s, monotone42.38047.936-5.5560.88410
87s, paired38.08447.936-9.8520.79448

Does a shared suit matter?

The suit split reads 59.81% for AQo with a shared suit and 58.42% without one. AQo does better with a shared suit, by 1.39 points.

AQo against 87s by suit overlap, in percent
DealsSpecific dealsShare of dealsAQo winsTies87s winsAQo equity
Share a suit2450.0059.5790.45939.96259.808
No shared suit2450.0058.2350.37741.38858.424

How often this matchup comes up

How often does it happen? 48 of the 1,624,350 ordered deals (0.0030%) are AQo against 87s, and 96 (0.0059%) 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 AQo gets $118.24 of it on average and 87s gets $81.76.

Scaled to 1,000 deals, that is roughly 589 wins for AQo, 407 for 87s and 4 chopped pots.

The same matchup from the other side

The mirror image, 87s against AQo, is 40.88% to 59.12%, and its address redirects to this page.

AsQh against 8d7d is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength.

How this was computed

Nothing here is simulated. The 48 deals of AQo against 87s 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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