--- title: "QQ vs A9o: preflop equity" url: "https://georgelipoker.com/equity/qq-vs-a9o.md" canonical_url: "https://georgelipoker.com/equity/qq-vs-a9o" last_updated: "2026-10-23" type: "reference" summary: "QQ is a big favorite over A9o before the flop: 71.90% to 28.10% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/qq-vs-kjo.md", "https://georgelipoker.com/equity/qq-vs-55.md", "https://georgelipoker.com/equity/jj-vs-a9o.md"] --- # QQ vs A9o: preflop equity QQ is a big favorite over A9o before the flop: 71.90% to 28.10% equity, counted exactly over every board, with the split by flop type and suit. Counting every board, the equity split is 71.90% for QQ and 28.10% for A9o, so QQ leads by 43.80 points. ## QQ against A9o: the numbers **Exact preflop results for QQ against A9o, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | QQ | 71.709 | 0.376 | 27.915 | 71.897 | | A9o | 27.915 | 0.376 | 71.709 | 28.103 | We compare a pocket pair with an offsuit hand. The pair is ahead of one card and behind the other, so the board decides how that plays out. That is a clear edge, 71.90% to 28.10%, but A9o still wins often enough that one hand proves nothing. Ties are 0.38% of the outcomes here; each tied board gives both hands half the pot. In the ranking of all 169 starting hands, QQ is number 3 and A9o is number 25. **Boards behind the percentages: 123,285,888 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | QQ | 88,407,000 | 464,000 | 34,415,000 | | A9o | 34,415,000 | 464,000 | 88,407,000 | The board total is exact, 72 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **QQ against A9o read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | QQ | 2.558 | 1.395 | 3.582 | 0.391 | | A9o | 0.391 | 3.582 | 1.395 | 2.558 | The final column gives the least the pot must offer for each unit called for a call to break even at this equity. ## Who is ahead on which flops Break the boards down by their first three cards and QQ is strongest on low rainbow flops (nine high or lower) (80.45%) and weakest on monotone flops (67.20%). QQ stays ahead on all five textures. **QQ against A9o by flop texture, in percent** | Flop | Share of flops | QQ wins | Ties | A9o wins | QQ equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.988 | 69.214 | 0.154 | 30.632 | 69.291 | | Rainbow, nine or lower | 7.042 | 79.917 | 1.067 | 19.016 | 80.451 | | Two-tone | 46.485 | 71.136 | 0.347 | 28.517 | 71.309 | | Monotone | 5.151 | 66.334 | 1.724 | 31.942 | 67.196 | | Paired | 17.334 | 74.960 | 0.083 | 24.957 | 75.002 | Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank. ## Compared with a random hand How much does the opponent matter? Compared with its random-hand 79.93%, QQ changes by -8.03 points, and A9o, from 60.77%, by -32.67. **QQ and A9o here compared with each against a random hand, in percent** | Case | Equity here | Against a random hand | Change in points | Times the random-hand equity | | --- | --- | --- | --- | --- | | QQ, all flops | 71.897 | 79.925 | -8.028 | 0.89956 | | QQ, rainbow, ten or higher | 69.291 | 79.925 | -10.634 | 0.86695 | | QQ, rainbow, nine or lower | 80.451 | 79.925 | +0.526 | 1.00658 | | QQ, two-tone | 71.309 | 79.925 | -8.616 | 0.89220 | | QQ, monotone | 67.196 | 79.925 | -12.729 | 0.84074 | | QQ, paired | 75.002 | 79.925 | -4.923 | 0.93840 | | A9o, all flops | 28.103 | 60.773 | -32.670 | 0.46243 | | A9o, rainbow, ten or higher | 30.709 | 60.773 | -30.064 | 0.50531 | | A9o, rainbow, nine or lower | 19.549 | 60.773 | -41.224 | 0.32167 | | A9o, two-tone | 28.691 | 60.773 | -32.082 | 0.47210 | | A9o, monotone | 32.804 | 60.773 | -27.969 | 0.53978 | | A9o, paired | 24.998 | 60.773 | -35.775 | 0.41133 | ## Does a shared suit matter? Two kinds of deal exist here. In 60 of them the hands share a suit and QQ holds 71.93%. In 12 they do not, and it holds 71.71%. The two rows differ by only 0.22 points, so suits barely change this matchup. **QQ against A9o by suit overlap, in percent** | Deals | Specific deals | Share of deals | QQ wins | Ties | A9o wins | QQ equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 60 | 83.33 | 71.738 | 0.392 | 27.870 | 71.934 | | No shared suit | 12 | 16.67 | 71.562 | 0.296 | 28.142 | 71.710 | ## How often this matchup comes up Exactly 72 specific deals fit this matchup in one seat order, which is 0.0044% of 1,624,350; both orders together give 144, or 0.0089%. ## A worked example With $100 from each side, the $200 pot is split on average as $143.80 for QQ and $56.20 for A9o; the first side gains $43.80 per all-in and the second gives up $43.80. Think in thousands: about 717 of 1,000 go to QQ, about 279 go to A9o, and about 4 are chopped. ## The same matchup from the other side A9o against QQ adds nothing new: it is 28.10% for A9o and 71.90% for QQ, the same figures reversed. ## Keep exploring QsQh against Ad9c 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. - [Open QsQh against Ad9c in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=QsQh&p2=Ad9c) - [QQ combos](https://georgelipoker.com/combos/qq.md) - [A9o combos](https://georgelipoker.com/combos/a9o.md) - [QQ vs KJo](https://georgelipoker.com/equity/qq-vs-kjo.md) - [QQ vs 55](https://georgelipoker.com/equity/qq-vs-55.md) - [JJ vs A9o](https://georgelipoker.com/equity/jj-vs-a9o.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed This is an exact count with no sampling. For the 72 ways to deal one QQ and one A9o 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. ## Related - [QQ vs KJo: preflop equity](https://georgelipoker.com/equity/qq-vs-kjo.md) - [QQ vs 55: preflop equity](https://georgelipoker.com/equity/qq-vs-55.md) - [JJ vs A9o: preflop equity](https://georgelipoker.com/equity/jj-vs-a9o.md)