--- title: "KJs vs K9s: preflop equity" url: "https://georgelipoker.com/equity/kjs-vs-k9s.md" canonical_url: "https://georgelipoker.com/equity/kjs-vs-k9s" last_updated: "2026-10-23" type: "reference" summary: "KJs is a big favorite over K9s before the flop: 70.09% to 29.91% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/kjs-vs-a5s.md", "https://georgelipoker.com/equity/kjs-vs-a6s.md", "https://georgelipoker.com/equity/a8s-vs-k9s.md"] --- # KJs vs K9s: preflop equity KJs is a big favorite over K9s before the flop: 70.09% to 29.91% equity, counted exactly over every board, with the split by flop type and suit. In equity, KJs against K9s stands at 70.09% to 29.91%, a gap of 40.18 points. ## KJs against K9s: the numbers **Exact preflop results for KJs against K9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | KJs | 66.610 | 6.958 | 26.432 | 70.089 | | K9s | 26.432 | 6.958 | 66.610 | 29.911 | Two suited hands meet here: KJs against K9s. 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. KJs is well ahead, and K9s needs a specific kind of board to catch up. Split pots make up 6.96% of the boards, and both equity figures count them as half a win each. Ranked by equity against a random hand, KJs is number 20 of the 169 starting hands and K9s is number 29. **Boards behind the percentages: 20,547,648 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | KJs | 13,687,000 | 1,430,000 | 5,431,000 | | K9s | 5,431,000 | 1,430,000 | 13,687,000 | Exact total: 12 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. **KJs against K9s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | KJs | 2.343 | 1.501 | 3.783 | 0.427 | | K9s | 0.427 | 3.783 | 1.501 | 2.343 | 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 Split by what the flop looks like, KJs peaks at 76.16% on rainbow flops topped by a ten or better and bottoms out at 61.04% on low rainbow flops (nine high or lower). KJs stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **KJs against K9s by flop texture, in percent** | Flop | Share of flops | KJs wins | Ties | K9s wins | KJs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 73.373 | 5.571 | 21.056 | 76.158 | | Rainbow, nine or lower | 7.042 | 59.686 | 2.706 | 37.608 | 61.039 | | Two-tone | 46.543 | 67.497 | 4.484 | 28.019 | 69.739 | | Monotone | 5.215 | 60.881 | 6.189 | 32.930 | 63.975 | | Paired | 17.333 | 59.457 | 17.469 | 23.074 | 68.191 | 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 Start from the random-hand figures, 62.57% for KJs and 59.99% for K9s. This opponent changes them by +7.52 and -30.08 points. **KJs and K9s 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 | | --- | --- | --- | --- | --- | | KJs, all flops | 70.089 | 62.567 | +7.522 | 1.12022 | | KJs, rainbow, ten or higher | 76.158 | 62.567 | +13.591 | 1.21722 | | KJs, rainbow, nine or lower | 61.039 | 62.567 | -1.528 | 0.97558 | | KJs, two-tone | 69.739 | 62.567 | +7.172 | 1.11463 | | KJs, monotone | 63.975 | 62.567 | +1.408 | 1.02250 | | KJs, paired | 68.191 | 62.567 | +5.624 | 1.08989 | | K9s, all flops | 29.911 | 59.988 | -30.077 | 0.49862 | | K9s, rainbow, ten or higher | 23.842 | 59.988 | -36.146 | 0.39745 | | K9s, rainbow, nine or lower | 38.961 | 59.988 | -21.027 | 0.64948 | | K9s, two-tone | 30.261 | 59.988 | -29.727 | 0.50445 | | K9s, monotone | 36.025 | 59.988 | -23.963 | 0.60054 | | K9s, paired | 31.809 | 59.988 | -28.179 | 0.53026 | ## Does a shared suit matter? The hands cannot hold a suit in common here, which leaves a single case and a single number: 70.09% for KJs. **KJs against K9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | KJs wins | Ties | K9s wins | KJs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 66.610 | 6.958 | 26.432 | 70.089 | ## How often this matchup comes up This page stands for 12 specific-card matchups (0.0007% of 1,624,350 ordered deals), or 24 once you count the seats both ways (0.0015%). ## A worked example Worked example: both players commit $100, so $200 sits in the middle. Over every board, KJs' average share is $140.18 (a gain of $40.18) and K9s' is $59.82 (a loss of $40.18). Out of 1,000 deals you should see around 666 outright wins for KJs, 264 for K9s, and 70 split pots. ## The same matchup from the other side If you came looking for K9s against KJs, the numbers are the same with the hands swapped: 29.91% and 70.09%. ## Keep exploring Open the calculator with KsJs against Kh9h 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 KsJs against Kh9h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=KsJs&p2=Kh9h) - [KJs combos](https://georgelipoker.com/combos/kjs.md) - [K9s combos](https://georgelipoker.com/combos/k9s.md) - [KJs vs A5s](https://georgelipoker.com/equity/kjs-vs-a5s.md) - [KJs vs A6s](https://georgelipoker.com/equity/kjs-vs-a6s.md) - [A8s vs K9s](https://georgelipoker.com/equity/a8s-vs-k9s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 12 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [KJs vs A5s: preflop equity](https://georgelipoker.com/equity/kjs-vs-a5s.md) - [KJs vs A6s: preflop equity](https://georgelipoker.com/equity/kjs-vs-a6s.md) - [A8s vs K9s: preflop equity](https://georgelipoker.com/equity/a8s-vs-k9s.md)