A8s vs QJo: preflop equity

Dealt all in against each other, A8s takes 58.91% of the pot on average and QJo takes the other 41.09%.

A8s

58.91%

Wins 58.69%, ties 0.44%

QJo

41.09%

Wins 40.87%, ties 0.44%

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

A8s against QJo: the numbers

Exact preflop results for A8s against QJo, in percent
HandWinsTiesLosesEquity
A8s58.6910.44240.86758.912
QJo40.8670.44258.69141.088

A8s and QJo are a suited hand and an offsuit hand, in that order. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.

A 17.82 point lead is real, and QJo still takes about 409 of every 1,000 deals outright. Split pots make up 0.44% of the boards, and both equity figures count them as half a win each.

By strength against a random hand, A8s holds place 21 of 169 and QJo holds place 39.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A8s48,238,000363,00033,589,000
QJo33,589,000363,00048,238,000

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.

A8s against QJo read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A8s1.4341.7042.4470.697
QJo0.6972.4471.7041.434

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

By flop texture, A8s' equity runs from 51.35% on rainbow flops topped by a ten or better up to 75.79% on low rainbow flops (nine high or lower). A8s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

A8s against QJo by flop texture, in percent
FlopShare of flopsA8s winsTiesQJo winsA8s equity
Rainbow, ten or higher23.98851.2860.11848.59651.345
Rainbow, nine or lower7.04275.3520.86523.78375.785
Two-tone46.66758.3930.26541.34258.525
Monotone5.21254.5342.36643.10055.717
Paired17.09164.3030.62035.07764.613

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

How much does the opponent matter? Compared with its random-hand 61.94%, A8s changes by -3.03 points, and QJo, from 58.14%, by -17.05.

A8s and QJo here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A8s, all flops58.91261.944-3.0320.95105
A8s, rainbow, ten or higher51.34561.944-10.5990.82889
A8s, rainbow, nine or lower75.78561.944+13.8411.22344
A8s, two-tone58.52561.944-3.4190.94480
A8s, monotone55.71761.944-6.2270.89947
A8s, paired64.61361.944+2.6691.04309
QJo, all flops41.08858.135-17.0470.70677
QJo, rainbow, ten or higher48.65558.135-9.4800.83693
QJo, rainbow, nine or lower24.21558.135-33.9200.41653
QJo, two-tone41.47558.135-16.6600.71343
QJo, monotone44.28358.135-13.8520.76173
QJo, paired35.38758.135-22.7480.60870

Does a shared suit matter?

Suit overlap shows up in the numbers. With a suit in common A8s has 58.57% equity, and with none in common it has 59.25%. A8s does better with no shared suit, by 0.68 points.

A8s against QJo by suit overlap, in percent
DealsSpecific dealsShare of dealsA8s winsTiesQJo winsA8s equity
Share a suit2450.0058.3290.48341.18858.570
No shared suit2450.0059.0540.40140.54559.254

How often this matchup comes up

Out of 1,624,350 ways to deal two seats two cards each, 48 are A8s in one seat and QJo in the other (0.0030%); with the seats swapped too, 96 (0.0059%).

A worked example

A $100 all-in from each player makes a $200 pot, and the exact equity says A8s gets $117.82 of it on average and QJo gets $82.18.

In 1,000 deals of exactly this matchup, expect about 587 won outright by A8s, about 409 won outright by QJo and about 4 split.

The same matchup from the other side

The reversed view, QJo against A8s, shows 41.09% for QJo and 58.91% for A8s. It is the same count, so it redirects here.

As8s against QhJd 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

Each figure is a complete count over boards. Take the 48 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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