--- title: "JJ vs Q9s: preflop equity" url: "https://georgelipoker.com/equity/jj-vs-q9s.md" canonical_url: "https://georgelipoker.com/equity/jj-vs-q9s" last_updated: "2026-10-23" type: "reference" summary: "JJ is a big favorite over Q9s before the flop: 67.87% to 32.13% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/jj-vs-jts.md", "https://georgelipoker.com/equity/jj-vs-a2s.md", "https://georgelipoker.com/equity/tt-vs-q9s.md"] --- # JJ vs Q9s: preflop equity JJ is a big favorite over Q9s before the flop: 67.87% to 32.13% equity, counted exactly over every board, with the split by flop type and suit. The exact count puts JJ at 67.87% and Q9s at 32.13% when the two hands see all five board cards. ## JJ against Q9s: the numbers **Exact preflop results for JJ against Q9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | JJ | 67.664 | 0.403 | 31.933 | 67.866 | | Q9s | 31.933 | 0.403 | 67.664 | 32.134 | Here a pocket pair (JJ) meets a suited hand (Q9s). The pair sits between the other hand's two cards: one is higher and one is lower, so the pair is exposed to the higher card. JJ is the clear favorite, though Q9s gets there on roughly one board in 3. The tie share is 0.40%: on those boards the pot is chopped and neither hand wins outright. Place 4 of 169 belongs to JJ and place 43 belongs to Q9s in the ranking against a random hand. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | JJ | 27,807,000 | 166,000 | 13,123,000 | | Q9s | 13,123,000 | 166,000 | 27,807,000 | 24 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand. **JJ 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) | | --- | --- | --- | --- | --- | | JJ | 2.112 | 1.478 | 3.132 | 0.473 | | Q9s | 0.473 | 3.132 | 1.478 | 2.112 | 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 63.12% on monotone flops up to 79.23% on low rainbow flops (nine high or lower). 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 Q9s by flop texture, in percent** | Flop | Share of flops | JJ wins | Ties | Q9s wins | JJ equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 66.239 | 0.143 | 33.618 | 66.310 | | Rainbow, nine or lower | 7.042 | 78.752 | 0.961 | 20.287 | 79.232 | | Two-tone | 46.545 | 65.845 | 0.302 | 33.853 | 65.996 | | Monotone | 5.212 | 61.923 | 2.393 | 35.684 | 63.119 | | Paired | 17.334 | 71.732 | 0.210 | 28.058 | 71.837 | 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 The table below sets each hand against its own random-hand baseline: a change of -9.60 points for JJ, from 77.47%, and -25.53 for Q9s, from 57.66%. **JJ 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 | | --- | --- | --- | --- | --- | | JJ, all flops | 67.866 | 77.469 | -9.603 | 0.87604 | | JJ, rainbow, ten or higher | 66.310 | 77.469 | -11.159 | 0.85596 | | JJ, rainbow, nine or lower | 79.232 | 77.469 | +1.763 | 1.02276 | | JJ, two-tone | 65.996 | 77.469 | -11.473 | 0.85190 | | JJ, monotone | 63.119 | 77.469 | -14.350 | 0.81476 | | JJ, paired | 71.837 | 77.469 | -5.632 | 0.92730 | | Q9s, all flops | 32.134 | 57.664 | -25.530 | 0.55726 | | Q9s, rainbow, ten or higher | 33.690 | 57.664 | -23.974 | 0.58425 | | Q9s, rainbow, nine or lower | 20.768 | 57.664 | -36.896 | 0.36016 | | Q9s, two-tone | 34.004 | 57.664 | -23.660 | 0.58969 | | Q9s, monotone | 36.881 | 57.664 | -20.783 | 0.63958 | | Q9s, paired | 28.163 | 57.664 | -29.501 | 0.48840 | ## Does a shared suit matter? When the hands share a suit, JJ holds 68.11%; when they do not, it holds 67.62%. JJ does better with a shared suit, by 0.49 points. **JJ against Q9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | JJ wins | Ties | Q9s wins | JJ equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 67.890 | 0.444 | 31.666 | 68.112 | | No shared suit | 12 | 50.00 | 67.438 | 0.363 | 32.199 | 67.619 | ## How often this matchup comes up JJ against Q9s is made up of 24 specific-card matchups in one seat order, 0.0015% of the 1,624,350 ordered deals, and 48 counting both seat orders, 0.0030%. ## A worked example To see what the equity is worth, imagine $100 each in a $200 pot. JJ is worth $135.74 on average (+$35.74); Q9s is worth $64.26 (-$35.74). Per 1,000 deals: JJ wins about 677, Q9s wins about 319, and about 4 end in a split pot. ## The same matchup from the other side If you came looking for Q9s against JJ, the numbers are the same with the hands swapped: 32.13% and 67.87%. ## Keep exploring The calculator link fills in JsJh against Qd9d, a deal where the two hands share no suit. Change any card to test your own hand. The neighboring matchups below swap one of the two hands for one of similar strength. - [Open JsJh against Qd9d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=JsJh&p2=Qd9d) - [JJ combos](https://georgelipoker.com/combos/jj.md) - [Q9s combos](https://georgelipoker.com/combos/q9s.md) - [JJ vs JTs](https://georgelipoker.com/equity/jj-vs-jts.md) - [JJ vs A2s](https://georgelipoker.com/equity/jj-vs-a2s.md) - [TT vs Q9s](https://georgelipoker.com/equity/tt-vs-q9s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Nothing here is simulated. The 24 deals of JJ against Q9s fall into a few suit patterns, each dealt against all 1,712,304 boards, with both best five-card hands compared on every board. Ties give each hand half a win, and the flop rows count a board under each of its ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [JJ vs JTs: preflop equity](https://georgelipoker.com/equity/jj-vs-jts.md) - [JJ vs A2s: preflop equity](https://georgelipoker.com/equity/jj-vs-a2s.md) - [TT vs Q9s: preflop equity](https://georgelipoker.com/equity/tt-vs-q9s.md)