--- title: "JJ vs 99: preflop equity" url: "https://georgelipoker.com/equity/jj-vs-99.md" canonical_url: "https://georgelipoker.com/equity/jj-vs-99" last_updated: "2026-10-23" type: "reference" summary: "JJ is a big favorite over 99 before the flop: 81.61% to 18.39% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/jj-vs-88.md", "https://georgelipoker.com/equity/jj-vs-aks.md", "https://georgelipoker.com/equity/tt-vs-99.md"] --- # JJ vs 99: preflop equity JJ is a big favorite over 99 before the flop: 81.61% to 18.39% equity, counted exactly over every board, with the split by flop type and suit. In equity, JJ against 99 stands at 81.61% to 18.39%, a gap of 63.22 points. ## JJ against 99: the numbers **Exact preflop results for JJ against 99, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | JJ | 81.396 | 0.424 | 18.180 | 81.608 | | 99 | 18.180 | 0.424 | 81.396 | 18.392 | JJ and 99 are both pocket pairs. A pair against a smaller pair is the classic crush: the smaller pair needs one of its two remaining cards to make a set. A gap this wide means 99 is in trouble before the flop and has few good runouts. Ties are part of the picture: 0.42% of boards end in a split pot, and each side counts that as half a win. For context, JJ sits at number 4 of 169 starting hands and 99 at number 6 when each is run against a random hand. **Boards behind the percentages: 61,642,944 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | JJ | 50,175,000 | 261,000 | 11,207,000 | | 99 | 11,207,000 | 261,000 | 50,175,000 | Exact total: 36 deals times 1,712,304 boards. The other three counts come from the five-decimal percentages and are rounded to the nearest thousand, so read them as approximate. **JJ against 99 read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | JJ | 4.437 | 1.229 | 5.501 | 0.225 | | 99 | 0.225 | 5.501 | 1.229 | 4.437 | 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, JJ's equity runs from 69.82% on low rainbow flops (nine high or lower) up to 86.54% on paired flops. JJ stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **JJ against 99 by flop texture, in percent** | Flop | Share of flops | JJ wins | Ties | 99 wins | JJ equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.595 | 84.065 | 0.182 | 15.753 | 84.156 | | Rainbow, nine or lower | 6.314 | 69.298 | 1.039 | 29.663 | 69.818 | | Two-tone | 46.363 | 80.455 | 0.343 | 19.202 | 80.627 | | Monotone | 5.152 | 75.045 | 1.726 | 23.229 | 75.908 | | Paired | 17.576 | 86.352 | 0.372 | 13.276 | 86.538 | 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 Start from the random-hand figures, 77.47% for JJ and 72.06% for 99. This opponent changes them by +4.14 and -53.67 points. **JJ and 99 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 | | --- | --- | --- | --- | --- | | JJ, all flops | 81.608 | 77.469 | +4.139 | 1.05343 | | JJ, rainbow, ten or higher | 84.156 | 77.469 | +6.687 | 1.08632 | | JJ, rainbow, nine or lower | 69.818 | 77.469 | -7.651 | 0.90124 | | JJ, two-tone | 80.627 | 77.469 | +3.158 | 1.04076 | | JJ, monotone | 75.908 | 77.469 | -1.561 | 0.97985 | | JJ, paired | 86.538 | 77.469 | +9.069 | 1.11707 | | 99, all flops | 18.392 | 72.057 | -53.665 | 0.25524 | | 99, rainbow, ten or higher | 15.844 | 72.057 | -56.213 | 0.21988 | | 99, rainbow, nine or lower | 30.182 | 72.057 | -41.875 | 0.41886 | | 99, two-tone | 19.373 | 72.057 | -52.684 | 0.26886 | | 99, monotone | 24.092 | 72.057 | -47.965 | 0.33435 | | 99, paired | 13.462 | 72.057 | -58.595 | 0.18682 | ## Does a shared suit matter? When the hands share a suit, JJ holds 81.75%; when they do not, it holds 80.93%. JJ does better with a shared suit, by 0.82 points. **JJ against 99 by suit overlap, in percent** | Deals | Specific deals | Share of deals | JJ wins | Ties | 99 wins | JJ equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 30 | 83.33 | 81.525 | 0.440 | 18.035 | 81.745 | | No shared suit | 6 | 16.67 | 80.753 | 0.344 | 18.903 | 80.925 | ## How often this matchup comes up This page stands for 36 specific-card matchups (0.0022% of 1,624,350 ordered deals), or 72 once you count the seats both ways (0.0044%). ## A worked example Try it with money: two players each put in $100 and the whole board runs out every possible way. JJ averages $163.22 from the $200, up $63.22; 99 averages $36.78, down $63.22. Scaled to 1,000 deals, that is roughly 814 wins for JJ, 182 for 99 and 4 chopped pots. ## The same matchup from the other side Read it from the other side: 99 against JJ is the same matchup with the numbers swapped, so 99 holds 18.39% and JJ holds 81.61%. That address sends you back to this page. ## Keep exploring JsJh against 9d9c 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 JsJh against 9d9c in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=JsJh&p2=9d9c) - [JJ combos](https://georgelipoker.com/combos/jj.md) - [99 combos](https://georgelipoker.com/combos/99.md) - [JJ vs 88](https://georgelipoker.com/equity/jj-vs-88.md) - [JJ vs AKs](https://georgelipoker.com/equity/jj-vs-aks.md) - [TT vs 99](https://georgelipoker.com/equity/tt-vs-99.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed This is an exact count with no sampling. For the 36 ways to deal one JJ and one 99 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 - [JJ vs 88: preflop equity](https://georgelipoker.com/equity/jj-vs-88.md) - [JJ vs AKs: preflop equity](https://georgelipoker.com/equity/jj-vs-aks.md) - [TT vs 99: preflop equity](https://georgelipoker.com/equity/tt-vs-99.md)