--- title: "QJs vs J9s: preflop equity" url: "https://georgelipoker.com/equity/qjs-vs-j9s.md" canonical_url: "https://georgelipoker.com/equity/qjs-vs-j9s" last_updated: "2026-10-23" type: "reference" summary: "QJs is a big favorite over J9s before the flop: 70.40% to 29.60% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/qjs-vs-jto.md", "https://georgelipoker.com/equity/qjs-vs-t9s.md", "https://georgelipoker.com/equity/k9s-vs-j9s.md"] --- # QJs vs J9s: preflop equity QJs is a big favorite over J9s before the flop: 70.40% to 29.60% equity, counted exactly over every board, with the split by flop type and suit. Before any board card is dealt, QJs holds 70.40% equity against J9s, which leaves J9s with 29.60%. ## QJs against J9s: the numbers **Exact preflop results for QJs against J9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | QJs | 68.569 | 3.663 | 27.768 | 70.401 | | J9s | 27.768 | 3.663 | 68.569 | 29.599 | QJs and J9s are both suited hands. Because the hands share one rank, the one with the higher kicker is ahead when that rank pairs and the other hand is mostly drawing. A lead of 40.80 points is large but not decisive: J9s still takes about 278 of every 1,000 deals. 3.66% of boards are ties, so the equity of each hand is its win rate plus half of that. By strength against a random hand, QJs holds place 28 of 169 and J9s holds place 55. **Boards behind the percentages: 20,547,648 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | QJs | 14,089,000 | 753,000 | 5,706,000 | | J9s | 5,706,000 | 753,000 | 14,089,000 | 12 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. **QJs against J9s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | QJs | 2.378 | 1.458 | 3.601 | 0.420 | | J9s | 0.420 | 3.601 | 1.458 | 2.378 | In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity. ## Who is ahead on which flops By flop texture, QJs' equity runs from 61.67% on low rainbow flops (nine high or lower) up to 75.11% on rainbow flops topped by a ten or better. QJs stays ahead on all five textures. **QJs against J9s by flop texture, in percent** | Flop | Share of flops | QJs wins | Ties | J9s wins | QJs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 73.291 | 3.645 | 23.064 | 75.114 | | Rainbow, nine or lower | 7.042 | 61.167 | 1.014 | 37.819 | 61.674 | | Two-tone | 46.543 | 67.831 | 2.794 | 29.375 | 69.228 | | Monotone | 5.215 | 60.997 | 5.181 | 33.822 | 63.588 | | Paired | 17.333 | 69.334 | 6.642 | 24.024 | 72.655 | 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 Relative to a random opponent, QJs changes by +10.14 points (baseline 60.26%) and J9s by -26.06 points (baseline 55.66%). **QJs and J9s 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 | | --- | --- | --- | --- | --- | | QJs, all flops | 70.401 | 60.259 | +10.142 | 1.16831 | | QJs, rainbow, ten or higher | 75.114 | 60.259 | +14.855 | 1.24652 | | QJs, rainbow, nine or lower | 61.674 | 60.259 | +1.415 | 1.02348 | | QJs, two-tone | 69.228 | 60.259 | +8.969 | 1.14884 | | QJs, monotone | 63.588 | 60.259 | +3.329 | 1.05524 | | QJs, paired | 72.655 | 60.259 | +12.396 | 1.20571 | | J9s, all flops | 29.599 | 55.662 | -26.063 | 0.53176 | | J9s, rainbow, ten or higher | 24.886 | 55.662 | -30.776 | 0.44709 | | J9s, rainbow, nine or lower | 38.326 | 55.662 | -17.336 | 0.68855 | | J9s, two-tone | 30.772 | 55.662 | -24.890 | 0.55284 | | J9s, monotone | 36.412 | 55.662 | -19.250 | 0.65416 | | J9s, paired | 27.345 | 55.662 | -28.317 | 0.49127 | ## Does a shared suit matter? Suits do not split this matchup, because no legal deal has the hands holding the same suit. **QJs against J9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | QJs wins | Ties | J9s wins | QJs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 68.569 | 3.663 | 27.768 | 70.401 | ## How often this matchup comes up Counting specific cards, QJs against J9s 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 $140.80 for QJs and $59.20 for J9s; the first side gains $40.80 per all-in and the second gives up $40.80. A thousand deals look like this: QJs takes 686, J9s takes 278, 36 are ties. ## The same matchup from the other side The mirror image, J9s against QJs, is 29.60% to 70.40%, and its address redirects to this page. ## Keep exploring Open the calculator with QsJs against Jh9h already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking. - [Open QsJs against Jh9h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=QsJs&p2=Jh9h) - [QJs combos](https://georgelipoker.com/combos/qjs.md) - [J9s combos](https://georgelipoker.com/combos/j9s.md) - [QJs vs JTo](https://georgelipoker.com/equity/qjs-vs-jto.md) - [QJs vs T9s](https://georgelipoker.com/equity/qjs-vs-t9s.md) - [K9s vs J9s](https://georgelipoker.com/equity/k9s-vs-j9s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed All 1,712,304 five-card boards are dealt for every suit pattern among the 12 specific deals of QJs against J9s, and both hands are scored on each. That is a full count, so the percentages are exact. Ties are half a win each, and each board appears once per flop it contains. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [QJs vs JTo: preflop equity](https://georgelipoker.com/equity/qjs-vs-jto.md) - [QJs vs T9s: preflop equity](https://georgelipoker.com/equity/qjs-vs-t9s.md) - [K9s vs J9s: preflop equity](https://georgelipoker.com/equity/k9s-vs-j9s.md)