--- title: "AA vs KJo: preflop equity" url: "https://georgelipoker.com/equity/aa-vs-kjo.md" canonical_url: "https://georgelipoker.com/equity/aa-vs-kjo" last_updated: "2026-10-23" type: "reference" summary: "AA is a big favorite over KJo before the flop: 86.68% to 13.32% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/aa-vs-55.md", "https://georgelipoker.com/equity/aa-vs-qjs.md", "https://georgelipoker.com/equity/kk-vs-kjo.md"] --- # AA vs KJo: preflop equity AA is a big favorite over KJo before the flop: 86.68% to 13.32% equity, counted exactly over every board, with the split by flop type and suit. Averaged over every possible board, AA is ahead of KJo by 73.36 points of equity, 86.68% to 13.32%. ## AA against KJo: the numbers **Exact preflop results for AA against KJo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AA | 86.486 | 0.393 | 13.121 | 86.682 | | KJo | 13.121 | 0.393 | 86.486 | 13.318 | AA, a pocket pair, plays KJo, an offsuit hand. Here a pair faces two cards that are both smaller, so the other hand needs to pair up and still be behind. That is a heavy lead: KJo needs the board to help it on most runouts and still falls behind far more often than not. Ties are part of the picture: 0.39% of boards end in a split pot, and each side counts that as half a win. The hand ranking puts AA at 1 and KJo at 26 out of 169 starting hands. **Boards behind the percentages: 123,285,888 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AA | 106,625,000 | 485,000 | 16,176,000 | | KJo | 16,176,000 | 485,000 | 106,625,000 | The total is exact: 72 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand. **AA against KJo read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | AA | 6.509 | 1.156 | 7.621 | 0.154 | | KJo | 0.154 | 7.621 | 1.156 | 6.509 | 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 If you know the kind of flop that came, the numbers shift: AA holds 96.57% on low rainbow flops (nine high or lower) and 81.29% on monotone flops. AA stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **AA against KJo by flop texture, in percent** | Flop | Share of flops | AA wins | Ties | KJo wins | AA equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.260 | 83.662 | 0.121 | 16.217 | 83.722 | | Rainbow, nine or lower | 7.771 | 95.956 | 1.234 | 2.810 | 96.573 | | Two-tone | 46.485 | 86.128 | 0.383 | 13.489 | 86.319 | | Monotone | 5.151 | 80.414 | 1.750 | 17.836 | 81.289 | | Paired | 17.333 | 88.793 | 0.007 | 11.200 | 88.797 | A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank. ## Compared with a random hand Against one random hand instead, AA holds 85.20% and KJo holds 60.57%. Facing each other changes that by +1.48 points for AA and -47.25 points for KJo. **AA and KJo 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 | | --- | --- | --- | --- | --- | | AA, all flops | 86.682 | 85.204 | +1.478 | 1.01735 | | AA, rainbow, ten or higher | 83.722 | 85.204 | -1.482 | 0.98261 | | AA, rainbow, nine or lower | 96.573 | 85.204 | +11.369 | 1.13343 | | AA, two-tone | 86.319 | 85.204 | +1.115 | 1.01309 | | AA, monotone | 81.289 | 85.204 | -3.915 | 0.95405 | | AA, paired | 88.797 | 85.204 | +3.593 | 1.04217 | | KJo, all flops | 13.318 | 60.569 | -47.251 | 0.21988 | | KJo, rainbow, ten or higher | 16.278 | 60.569 | -44.291 | 0.26875 | | KJo, rainbow, nine or lower | 3.427 | 60.569 | -57.142 | 0.05658 | | KJo, two-tone | 13.681 | 60.569 | -46.888 | 0.22587 | | KJo, monotone | 18.711 | 60.569 | -41.858 | 0.30892 | | KJo, paired | 11.203 | 60.569 | -49.366 | 0.18496 | ## Does a shared suit matter? Of the deals of this matchup, 60 share a suit (AA at 86.84%) and 12 do not (85.92%). AA does better with a shared suit, by 0.92 points. **AA against KJo by suit overlap, in percent** | Deals | Specific deals | Share of deals | AA wins | Ties | KJo wins | AA equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 60 | 83.33 | 86.631 | 0.409 | 12.960 | 86.835 | | No shared suit | 12 | 16.67 | 85.762 | 0.313 | 13.925 | 85.919 | ## How often this matchup comes up How often does it happen? 72 of the 1,624,350 ordered deals (0.0044%) are AA against KJo, and 144 (0.0089%) if either hand may sit in either seat. ## A worked example Try it with money: two players each put in $100 and the whole board runs out every possible way. AA averages $173.36 from the $200, up $73.36; KJo averages $26.64, down $73.36. In 1,000 deals of exactly this matchup, expect about 865 won outright by AA, about 131 won outright by KJo and about 4 split. ## The same matchup from the other side The reversed view, KJo against AA, shows 13.32% for KJo and 86.68% for AA. It is the same count, so it redirects here. ## Keep exploring AsAh against KdJc is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength. - [Open AsAh against KdJc in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsAh&p2=KdJc) - [AA combos](https://georgelipoker.com/combos/aa.md) - [KJo combos](https://georgelipoker.com/combos/kjo.md) - [AA vs 55](https://georgelipoker.com/equity/aa-vs-55.md) - [AA vs QJs](https://georgelipoker.com/equity/aa-vs-qjs.md) - [KK vs KJo](https://georgelipoker.com/equity/kk-vs-kjo.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed We counted every case. Each suit pattern of the 72 specific AA against KJo deals meets all 1,712,304 boards, and the better five-card hand wins; a split pot is half a win each. The flop table reads each board under all ten of its three-card flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [AA vs 55: preflop equity](https://georgelipoker.com/equity/aa-vs-55.md) - [AA vs QJs: preflop equity](https://georgelipoker.com/equity/aa-vs-qjs.md) - [KK vs KJo: preflop equity](https://georgelipoker.com/equity/kk-vs-kjo.md)