--- title: "AKs vs K9s: preflop equity" url: "https://georgelipoker.com/equity/aks-vs-k9s.md" canonical_url: "https://georgelipoker.com/equity/aks-vs-k9s" last_updated: "2026-10-23" type: "reference" summary: "AKs is a big favorite over K9s before the flop: 72.73% to 27.27% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/aks-vs-a5s.md", "https://georgelipoker.com/equity/aks-vs-a6s.md", "https://georgelipoker.com/equity/77-vs-k9s.md"] --- # AKs vs K9s: preflop equity AKs is a big favorite over K9s before the flop: 72.73% to 27.27% equity, counted exactly over every board, with the split by flop type and suit. Before any board card is dealt, AKs holds 72.73% equity against K9s, which leaves K9s with 27.27%. ## AKs against K9s: the numbers **Exact preflop results for AKs against K9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AKs | 72.122 | 1.207 | 26.671 | 72.726 | | K9s | 26.671 | 1.207 | 72.122 | 27.274 | Here suited hands face each other, AKs on one side and K9s on the other. 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. That is a clear edge, 72.73% to 27.27%, but K9s still wins often enough that one hand proves nothing. Split pots make up 1.21% of the boards, and both equity figures count them as half a win each. Ranked by equity against a random hand, AKs is number 8 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 | | --- | --- | --- | --- | | AKs | 14,819,000 | 248,000 | 5,480,000 | | K9s | 5,480,000 | 248,000 | 14,819,000 | 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. **AKs 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) | | --- | --- | --- | --- | --- | | AKs | 2.666 | 1.387 | 3.749 | 0.375 | | K9s | 0.375 | 3.749 | 1.387 | 2.666 | 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, AKs peaks at 78.29% on rainbow flops topped by a ten or better and bottoms out at 61.22% on low rainbow flops (nine high or lower). AKs stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **AKs against K9s by flop texture, in percent** | Flop | Share of flops | AKs wins | Ties | K9s wins | AKs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 77.836 | 0.907 | 21.257 | 78.290 | | Rainbow, nine or lower | 7.042 | 60.718 | 0.996 | 38.286 | 61.216 | | Two-tone | 46.543 | 70.909 | 0.816 | 28.275 | 71.317 | | Monotone | 5.215 | 63.406 | 3.506 | 33.088 | 65.159 | | Paired | 17.333 | 74.768 | 2.063 | 23.169 | 75.800 | 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 The table below sets each hand against its own random-hand baseline: a change of +5.68 points for AKs, from 67.05%, and -32.72 for K9s, from 59.99%. **AKs 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 | | --- | --- | --- | --- | --- | | AKs, all flops | 72.726 | 67.045 | +5.681 | 1.08473 | | AKs, rainbow, ten or higher | 78.290 | 67.045 | +11.245 | 1.16772 | | AKs, rainbow, nine or lower | 61.216 | 67.045 | -5.829 | 0.91306 | | AKs, two-tone | 71.317 | 67.045 | +4.272 | 1.06372 | | AKs, monotone | 65.159 | 67.045 | -1.886 | 0.97187 | | AKs, paired | 75.800 | 67.045 | +8.755 | 1.13058 | | K9s, all flops | 27.274 | 59.988 | -32.714 | 0.45466 | | K9s, rainbow, ten or higher | 21.710 | 59.988 | -38.278 | 0.36191 | | K9s, rainbow, nine or lower | 38.784 | 59.988 | -21.204 | 0.64653 | | K9s, two-tone | 28.683 | 59.988 | -31.305 | 0.47815 | | K9s, monotone | 34.841 | 59.988 | -25.147 | 0.58080 | | K9s, paired | 24.200 | 59.988 | -35.788 | 0.40341 | ## Does a shared suit matter? A shared suit is impossible for this matchup, so AKs' 72.73% is the answer for every suit pattern. **AKs against K9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | AKs wins | Ties | K9s wins | AKs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 72.122 | 1.207 | 26.671 | 72.726 | ## 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 Put $100 each into a $200 pot and deal every board once: AKs averages $145.46 back, ahead of its $100 by $45.46, while K9s averages $54.54, short of its $100 by $45.46. Out of 1,000 deals you should see around 721 outright wins for AKs, 267 for K9s, and 12 split pots. ## The same matchup from the other side The mirror image, K9s against AKs, is 27.27% to 72.73%, and its address redirects to this page. ## Keep exploring Try AsKs against Kh9h 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 AsKs against Kh9h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsKs&p2=Kh9h) - [AKs combos](https://georgelipoker.com/combos/aks.md) - [K9s combos](https://georgelipoker.com/combos/k9s.md) - [AKs vs A5s](https://georgelipoker.com/equity/aks-vs-a5s.md) - [AKs vs A6s](https://georgelipoker.com/equity/aks-vs-a6s.md) - [77 vs K9s](https://georgelipoker.com/equity/77-vs-k9s.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 12 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 - [AKs vs A5s: preflop equity](https://georgelipoker.com/equity/aks-vs-a5s.md) - [AKs vs A6s: preflop equity](https://georgelipoker.com/equity/aks-vs-a6s.md) - [77 vs K9s: preflop equity](https://georgelipoker.com/equity/77-vs-k9s.md)