--- title: "JJ vs T9s: preflop equity" url: "https://georgelipoker.com/equity/jj-vs-t9s.md" canonical_url: "https://georgelipoker.com/equity/jj-vs-t9s" last_updated: "2026-10-23" type: "reference" summary: "JJ is a big favorite over T9s before the flop: 81.70% to 18.30% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/jj-vs-33.md", "https://georgelipoker.com/equity/jj-vs-t8s.md", "https://georgelipoker.com/equity/tt-vs-t9s.md"] --- # JJ vs T9s: preflop equity JJ is a big favorite over T9s before the flop: 81.70% to 18.30% equity, counted exactly over every board, with the split by flop type and suit. If JJ and T9s get all the chips in before the flop, JJ owns 81.70% of the pot in the long run and T9s owns 18.30%. ## JJ against T9s: the numbers **Exact preflop results for JJ against T9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | JJ | 81.495 | 0.409 | 18.096 | 81.700 | | T9s | 18.096 | 0.409 | 81.495 | 18.300 | JJ, a pocket pair, plays T9s, a suited hand. The pair outranks both of the other hand's cards, which is why the pair is a strong favorite. That is a heavy lead: T9s needs the board to help it on most runouts and still falls behind far more often than not. 0.41% of boards are ties, so the equity of each hand is its win rate plus half of that. In the ranking of all 169 starting hands, JJ is number 4 and T9s is number 64. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | JJ | 33,491,000 | 168,000 | 7,437,000 | | T9s | 7,437,000 | 168,000 | 33,491,000 | Exact total: 24 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 T9s 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 | 4.464 | 1.227 | 5.526 | 0.224 | | T9s | 0.224 | 5.526 | 1.227 | 4.464 | 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 If you know the kind of flop that came, the numbers shift: JJ holds 85.23% on paired flops and 75.54% on monotone flops. JJ stays ahead on all five textures. **JJ against T9s by flop texture, in percent** | Flop | Share of flops | JJ wins | Ties | T9s wins | JJ equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 83.839 | 0.177 | 15.984 | 83.927 | | Rainbow, nine or lower | 7.042 | 81.887 | 0.738 | 17.375 | 82.256 | | Two-tone | 46.545 | 79.707 | 0.281 | 20.012 | 79.847 | | Monotone | 5.212 | 74.352 | 2.382 | 23.266 | 75.543 | | Paired | 17.334 | 85.060 | 0.343 | 14.597 | 85.232 | 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 How much does the opponent matter? Compared with its random-hand 77.47%, JJ changes by +4.23 points, and T9s, from 54.03%, by -35.73. **JJ and T9s 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 | 81.700 | 77.469 | +4.231 | 1.05462 | | JJ, rainbow, ten or higher | 83.927 | 77.469 | +6.458 | 1.08336 | | JJ, rainbow, nine or lower | 82.256 | 77.469 | +4.787 | 1.06179 | | JJ, two-tone | 79.847 | 77.469 | +2.378 | 1.03070 | | JJ, monotone | 75.543 | 77.469 | -1.926 | 0.97514 | | JJ, paired | 85.232 | 77.469 | +7.763 | 1.10021 | | T9s, all flops | 18.300 | 54.028 | -35.728 | 0.33871 | | T9s, rainbow, ten or higher | 16.073 | 54.028 | -37.955 | 0.29749 | | T9s, rainbow, nine or lower | 17.744 | 54.028 | -36.284 | 0.32842 | | T9s, two-tone | 20.153 | 54.028 | -33.875 | 0.37301 | | T9s, monotone | 24.457 | 54.028 | -29.571 | 0.45267 | | T9s, paired | 14.768 | 54.028 | -39.260 | 0.27334 | ## Does a shared suit matter? When the hands share a suit, JJ holds 82.26%; when they do not, it holds 81.14%. JJ does better with a shared suit, by 1.12 points. **JJ against T9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | JJ wins | Ties | T9s wins | JJ equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 82.031 | 0.449 | 17.520 | 82.256 | | No shared suit | 12 | 50.00 | 80.960 | 0.368 | 18.672 | 81.144 | ## How often this matchup comes up You will meet this exact matchup 0.0030% of the time in a random heads-up deal: 48 of 1,624,350, counting either seat order. ## A worked example Put $100 each into a $200 pot and deal every board once: JJ averages $163.40 back, ahead of its $100 by $63.40, while T9s averages $36.60, short of its $100 by $63.40. A thousand deals look like this: JJ takes 815, T9s takes 181, 4 are ties. ## The same matchup from the other side The reversed view, T9s against JJ, shows 18.30% for T9s and 81.70% for JJ. It is the same count, so it redirects here. ## Keep exploring Try JsJh against Td9d 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 JsJh against Td9d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=JsJh&p2=Td9d) - [JJ combos](https://georgelipoker.com/combos/jj.md) - [T9s combos](https://georgelipoker.com/combos/t9s.md) - [JJ vs 33](https://georgelipoker.com/equity/jj-vs-33.md) - [JJ vs T8s](https://georgelipoker.com/equity/jj-vs-t8s.md) - [TT vs T9s](https://georgelipoker.com/equity/tt-vs-t9s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 24 specific deals, with both seven-card hands compared each time. Equity gives half a win for a tie. For the flop rows, a board is counted once under each of the ten flops inside it. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [JJ vs 33: preflop equity](https://georgelipoker.com/equity/jj-vs-33.md) - [JJ vs T8s: preflop equity](https://georgelipoker.com/equity/jj-vs-t8s.md) - [TT vs T9s: preflop equity](https://georgelipoker.com/equity/tt-vs-t9s.md)