--- title: "99 vs Q9s: preflop equity" url: "https://georgelipoker.com/equity/99-vs-q9s.md" canonical_url: "https://georgelipoker.com/equity/99-vs-q9s" last_updated: "2026-10-23" type: "reference" summary: "99 is a big favorite over Q9s before the flop: 63.97% to 36.03% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/99-vs-jts.md", "https://georgelipoker.com/equity/99-vs-a2s.md", "https://georgelipoker.com/equity/88-vs-q9s.md"] --- # 99 vs Q9s: preflop equity 99 is a big favorite over Q9s before the flop: 63.97% to 36.03% equity, counted exactly over every board, with the split by flop type and suit. Dealt all in against each other, 99 takes 63.97% of the pot on average and Q9s takes the other 36.03%. ## 99 against Q9s: the numbers **Exact preflop results for 99 against Q9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 99 | 62.958 | 2.020 | 35.022 | 63.968 | | Q9s | 35.022 | 2.020 | 62.958 | 36.032 | 99, a pocket pair, plays Q9s, a suited hand. The pair already holds one of the other hand's ranks, and that overlap cuts down the cards the other hand can pair with. That is a modest edge, the kind that shows up over many hands and is easy to miss in one. The tie share is 2.02%: on those boards the pot is chopped and neither hand wins outright. By strength against a random hand, 99 holds place 6 of 169 and Q9s holds place 43. **Boards behind the percentages: 20,547,648 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | 99 | 12,936,000 | 415,000 | 7,196,000 | | Q9s | 7,196,000 | 415,000 | 12,936,000 | The board total is exact, 12 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **99 against Q9s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | 99 | 1.775 | 1.588 | 2.855 | 0.563 | | Q9s | 0.563 | 2.855 | 1.588 | 1.775 | 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 99 prefers low rainbow flops (nine high or lower), where it holds 83.13%, and likes monotone flops least, where it holds 60.16%. 99 stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **99 against Q9s by flop texture, in percent** | Flop | Share of flops | 99 wins | Ties | Q9s wins | 99 equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.197 | 59.798 | 1.917 | 38.285 | 60.756 | | Rainbow, nine or lower | 5.585 | 81.121 | 4.010 | 14.869 | 83.126 | | Two-tone | 46.236 | 60.571 | 2.086 | 37.343 | 61.614 | | Monotone | 5.151 | 58.739 | 2.848 | 38.413 | 60.163 | | Paired | 17.831 | 69.144 | 1.128 | 29.728 | 69.708 | 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, 99 changes by -8.09 points (baseline 72.06%) and Q9s by -21.63 points (baseline 57.66%). **99 and Q9s 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 | | --- | --- | --- | --- | --- | | 99, all flops | 63.968 | 72.057 | -8.089 | 0.88774 | | 99, rainbow, ten or higher | 60.756 | 72.057 | -11.301 | 0.84317 | | 99, rainbow, nine or lower | 83.126 | 72.057 | +11.069 | 1.15361 | | 99, two-tone | 61.614 | 72.057 | -10.443 | 0.85507 | | 99, monotone | 60.163 | 72.057 | -11.894 | 0.83494 | | 99, paired | 69.708 | 72.057 | -2.349 | 0.96740 | | Q9s, all flops | 36.032 | 57.664 | -21.632 | 0.62486 | | Q9s, rainbow, ten or higher | 39.244 | 57.664 | -18.420 | 0.68056 | | Q9s, rainbow, nine or lower | 16.874 | 57.664 | -40.790 | 0.29263 | | Q9s, two-tone | 38.386 | 57.664 | -19.278 | 0.66568 | | Q9s, monotone | 39.837 | 57.664 | -17.827 | 0.69085 | | Q9s, paired | 30.292 | 57.664 | -27.372 | 0.52532 | ## Does a shared suit matter? There is no shared-suit case for this pair, since the cards they would need are already in the other hand. Every deal is a no-shared-suit deal. **99 against Q9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | 99 wins | Ties | Q9s wins | 99 equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 62.958 | 2.020 | 35.022 | 63.968 | ## How often this matchup comes up Counting specific cards, 99 against Q9s appears in 12 of the 1,624,350 ordered heads-up deals (0.0007%), and in 24 when the seats are swapped too (0.0015%). ## A worked example With $100 from each side, the $200 pot is split on average as $127.94 for 99 and $72.06 for Q9s; the first side gains $27.94 per all-in and the second gives up $27.94. Scaled to 1,000 deals, that is roughly 630 wins for 99, 350 for Q9s and 20 chopped pots. ## The same matchup from the other side Swap the hands and you get Q9s with 36.03% against 99 with 63.97%. We keep one page per matchup, with the better-ranked hand first. ## Keep exploring 9s9h against Qd9d 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 9s9h against Qd9d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=9s9h&p2=Qd9d) - [99 combos](https://georgelipoker.com/combos/99.md) - [Q9s combos](https://georgelipoker.com/combos/q9s.md) - [99 vs JTs](https://georgelipoker.com/equity/99-vs-jts.md) - [99 vs A2s](https://georgelipoker.com/equity/99-vs-a2s.md) - [88 vs Q9s](https://georgelipoker.com/equity/88-vs-q9s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Method: exact enumeration. The 12 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 - [99 vs JTs: preflop equity](https://georgelipoker.com/equity/99-vs-jts.md) - [99 vs A2s: preflop equity](https://georgelipoker.com/equity/99-vs-a2s.md) - [88 vs Q9s: preflop equity](https://georgelipoker.com/equity/88-vs-q9s.md)