--- title: "QQ vs A9s: preflop equity" url: "https://georgelipoker.com/equity/qq-vs-a9s.md" canonical_url: "https://georgelipoker.com/equity/qq-vs-a9s" last_updated: "2026-10-23" type: "reference" summary: "QQ is a big favorite over A9s before the flop: 68.28% to 31.72% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/qq-vs-ato.md", "https://georgelipoker.com/equity/qq-vs-kjs.md", "https://georgelipoker.com/equity/jj-vs-a9s.md"] --- # QQ vs A9s: preflop equity QQ is a big favorite over A9s before the flop: 68.28% to 31.72% equity, counted exactly over every board, with the split by flop type and suit. In equity, QQ against A9s stands at 68.28% to 31.72%, a gap of 36.56 points. ## QQ against A9s: the numbers **Exact preflop results for QQ against A9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | QQ | 68.082 | 0.398 | 31.520 | 68.281 | | A9s | 31.520 | 0.398 | 68.082 | 31.719 | One side is a pocket pair, the other is a suited hand. The pair is ahead of one card and behind the other, so the board decides how that plays out. A lead of 36.56 points is large but not decisive: A9s still takes about 315 of every 1,000 deals. A split pot comes up on 0.40% of boards, so the wins and the equity differ by half of that. Ranked by equity against a random hand, QQ is number 3 of the 169 starting hands and A9s is number 18. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | QQ | 27,978,000 | 164,000 | 12,953,000 | | A9s | 12,953,000 | 164,000 | 27,978,000 | The total is exact: 24 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 A9s 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 | 2.153 | 1.469 | 3.173 | 0.465 | | A9s | 0.465 | 3.173 | 1.469 | 2.153 | 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 QQ prefers low rainbow flops (nine high or lower), where it holds 77.75%, and likes monotone flops least, where it holds 63.63%. QQ stays ahead on all five textures. **QQ against A9s by flop texture, in percent** | Flop | Share of flops | QQ wins | Ties | A9s wins | QQ equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 67.373 | 0.151 | 32.476 | 67.449 | | Rainbow, nine or lower | 7.042 | 77.233 | 1.028 | 21.739 | 77.747 | | Two-tone | 46.545 | 66.332 | 0.321 | 33.347 | 66.493 | | Monotone | 5.212 | 62.431 | 2.405 | 35.164 | 63.634 | | Paired | 17.334 | 71.738 | 0.083 | 28.179 | 71.779 | Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank. ## Compared with a random hand Compared with a random opponent, this matchup shifts QQ from 79.93% by -11.65 points and A9s from 62.78% by -31.06 points. **QQ and A9s 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 | 68.281 | 79.925 | -11.644 | 0.85431 | | QQ, rainbow, ten or higher | 67.449 | 79.925 | -12.476 | 0.84390 | | QQ, rainbow, nine or lower | 77.747 | 79.925 | -2.178 | 0.97275 | | QQ, two-tone | 66.493 | 79.925 | -13.432 | 0.83194 | | QQ, monotone | 63.634 | 79.925 | -16.291 | 0.79617 | | QQ, paired | 71.779 | 79.925 | -8.146 | 0.89808 | | A9s, all flops | 31.719 | 62.781 | -31.062 | 0.50523 | | A9s, rainbow, ten or higher | 32.551 | 62.781 | -30.230 | 0.51848 | | A9s, rainbow, nine or lower | 22.253 | 62.781 | -40.528 | 0.35445 | | A9s, two-tone | 33.507 | 62.781 | -29.274 | 0.53371 | | A9s, monotone | 36.366 | 62.781 | -26.415 | 0.57925 | | A9s, paired | 28.221 | 62.781 | -34.560 | 0.44951 | ## Does a shared suit matter? Looking only at deals where the hands share a suit, QQ has 68.57%; looking only at deals where they do not, 67.99%. QQ does better with a shared suit, by 0.58 points. **QQ against A9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | QQ wins | Ties | A9s wins | QQ equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 68.355 | 0.439 | 31.206 | 68.574 | | No shared suit | 12 | 50.00 | 67.809 | 0.356 | 31.835 | 67.987 | ## How often this matchup comes up Counting specific cards, QQ against A9s appears in 24 of the 1,624,350 ordered heads-up deals (0.0015%), and in 48 when the seats are swapped too (0.0030%). ## A worked example Worked example: both players commit $100, so $200 sits in the middle. Over every board, QQ's average share is $136.56 (a gain of $36.56) and A9s' is $63.44 (a loss of $36.56). Over a long run, 1,000 deals split into about 681 for QQ, 315 for A9s and 4 tied. ## The same matchup from the other side Swap the hands and you get A9s with 31.72% against QQ with 68.28%. We keep one page per matchup, with the better-ranked hand first. ## Keep exploring Try QsQh against Ad9d 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. - [Open QsQh against Ad9d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=QsQh&p2=Ad9d) - [QQ combos](https://georgelipoker.com/combos/qq.md) - [A9s combos](https://georgelipoker.com/combos/a9s.md) - [QQ vs ATo](https://georgelipoker.com/equity/qq-vs-ato.md) - [QQ vs KJs](https://georgelipoker.com/equity/qq-vs-kjs.md) - [JJ vs A9s](https://georgelipoker.com/equity/jj-vs-a9s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Method: exact enumeration. The 24 specific deals are grouped by suit pattern, each is run against all 1,712,304 boards, and both seven-card hands are scored. Equity adds half of every tie, and flop textures are tallied over the ten flops inside each board. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [QQ vs ATo: preflop equity](https://georgelipoker.com/equity/qq-vs-ato.md) - [QQ vs KJs: preflop equity](https://georgelipoker.com/equity/qq-vs-kjs.md) - [JJ vs A9s: preflop equity](https://georgelipoker.com/equity/jj-vs-a9s.md)