QQ vs 88: preflop equity

The exact count puts QQ at 80.87% and 88 at 19.13% when the two hands see all five board cards.

QQ

80.87%

Wins 80.68%, ties 0.38%

88

19.13%

Wins 18.94%, ties 0.38%

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

QQ against 88: the numbers

Exact preflop results for QQ against 88, in percent
HandWinsTiesLosesEquity
QQ80.6790.38218.93980.870
8818.9390.38280.67919.130

Both hands are pocket pairs: QQ and 88. A pair against a smaller pair is the classic crush: the smaller pair needs one of its two remaining cards to make a set.

QQ is a big favorite here before anyone sees a flop. Split pots make up 0.38% of the boards, and both equity figures count them as half a win each.

By strength against a random hand, QQ holds place 3 of 169 and 88 holds place 7.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
QQ49,733,000235,00011,675,000
8811,675,000235,00049,733,000

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.

QQ against 88 read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
QQ4.2271.2395.2800.237
880.2375.2801.2394.227

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

Across the five flop textures QQ's equity moves by 18.44 points, from 67.96% on low rainbow flops (nine high or lower) to 86.40% on paired flops. QQ stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

QQ against 88 by flop texture, in percent
FlopShare of flopsQQ winsTies88 winsQQ equity
Rainbow, ten or higher24.59583.4030.19616.40183.501
Rainbow, nine or lower6.31467.4980.92431.57867.960
Two-tone46.36379.5940.33120.07579.760
Monotone5.15274.4001.71823.88275.259
Paired17.57686.3040.19313.50386.401

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

A random hand would give QQ 79.93% and 88 69.16%. Against each other the change is +0.94 points for QQ and -50.03 for 88.

QQ and 88 here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
QQ, all flops80.87079.925+0.9451.01182
QQ, rainbow, ten or higher83.50179.925+3.5761.04474
QQ, rainbow, nine or lower67.96079.925-11.9650.85030
QQ, two-tone79.76079.925-0.1650.99794
QQ, monotone75.25979.925-4.6660.94162
QQ, paired86.40179.925+6.4761.08103
88, all flops19.13069.163-50.0330.27659
88, rainbow, ten or higher16.49969.163-52.6640.23855
88, rainbow, nine or lower32.04069.163-37.1230.46325
88, two-tone20.24069.163-48.9230.29264
88, monotone24.74169.163-44.4220.35772
88, paired13.59969.163-55.5640.19662

Does a shared suit matter?

Suit overlap shows up in the numbers. With a suit in common QQ has 81.00% equity, and with none in common it has 80.20%. QQ does better with a shared suit, by 0.80 points.

QQ against 88 by suit overlap, in percent
DealsSpecific dealsShare of dealsQQ winsTies88 winsQQ equity
Share a suit3083.3380.8040.39918.79781.004
No shared suit616.6780.0520.30219.64680.203

How often this matchup comes up

Exactly 36 specific deals fit this matchup in one seat order, which is 0.0022% of 1,624,350; both orders together give 72, or 0.0044%.

A worked example

Take a $200 pot built from $100 each. QQ's equity of 80.87% is worth $161.74, a $61.74 edge, and 88's 19.13% is worth $38.26, which is $61.74 under its stake.

Per 1,000 deals: QQ wins about 807, 88 wins about 189, and about 4 end in a split pot.

The same matchup from the other side

88 versus QQ is this same page seen from the other hand: 19.13% for 88, 80.87% for QQ.

Try QsQh against 8d8c 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

This is an exact count with no sampling. For the 36 ways to deal one QQ and one 88 without reusing a card, grouped by suit pattern, every one of the 1,712,304 possible boards is dealt and both seven-card hands are compared. A tie counts as half a win in the equity column, and each board is counted once under each of its ten three-card flops.

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

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