--- title: "AA vs KK: preflop equity" url: "https://georgelipoker.com/equity/aa-vs-kk.md" canonical_url: "https://georgelipoker.com/equity/aa-vs-kk" last_updated: "2026-10-23" type: "reference" summary: "AA is a big favorite over KK before the flop: 81.95% to 18.05% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/aa-vs-qq.md", "https://georgelipoker.com/equity/aa-vs-jj.md", "https://georgelipoker.com/equity/aa-vs-tt.md"] --- # AA vs KK: preflop equity AA is a big favorite over KK before the flop: 81.95% to 18.05% equity, counted exactly over every board, with the split by flop type and suit. Dealt all in against each other, AA takes 81.95% of the pot on average and KK takes the other 18.05%. ## AA against KK: the numbers **Exact preflop results for AA against KK, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AA | 81.715 | 0.463 | 17.822 | 81.946 | | KK | 17.822 | 0.463 | 81.715 | 18.054 | This is a contest between two pocket pairs, AA and KK. Two pairs against each other is a one-way street: the lower pair needs one of its two remaining cards. This is one of the lopsided matchups: KK wins only 17.82% of the boards outright. Ties are 0.46% of the outcomes here; each tied board gives both hands half the pot. By strength against a random hand, AA holds place 1 of 169 and KK holds place 2. **Boards behind the percentages: 61,642,944 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AA | 50,372,000 | 285,000 | 10,986,000 | | KK | 10,986,000 | 285,000 | 50,372,000 | The total is exact: 36 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 KK 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 | 4.539 | 1.224 | 5.611 | 0.220 | | KK | 0.220 | 5.611 | 1.224 | 4.539 | 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, AA's equity runs from 76.21% on monotone flops up to 91.00% on low rainbow flops (nine high or lower). AA stays ahead on all five textures. **AA against KK by flop texture, in percent** | Flop | Share of flops | AA wins | Ties | KK wins | AA equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.138 | 78.406 | 0.199 | 21.395 | 78.505 | | Rainbow, nine or lower | 7.771 | 90.318 | 1.356 | 8.326 | 90.996 | | Two-tone | 46.363 | 80.795 | 0.468 | 18.737 | 81.029 | | Monotone | 5.152 | 75.307 | 1.809 | 22.884 | 76.212 | | Paired | 17.576 | 86.570 | 0.007 | 13.423 | 86.574 | Flop types: rainbow means three different suits, two-tone means one suit twice, monotone means one suit three times, paired means a repeated rank. ## Compared with a random hand Compared with a random opponent, this matchup shifts AA from 85.20% by -3.25 points and KK from 82.40% by -64.35 points. **AA and KK 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 | 81.946 | 85.204 | -3.258 | 0.96176 | | AA, rainbow, ten or higher | 78.505 | 85.204 | -6.699 | 0.92138 | | AA, rainbow, nine or lower | 90.996 | 85.204 | +5.792 | 1.06798 | | AA, two-tone | 81.029 | 85.204 | -4.175 | 0.95100 | | AA, monotone | 76.212 | 85.204 | -8.992 | 0.89447 | | AA, paired | 86.574 | 85.204 | +1.370 | 1.01608 | | KK, all flops | 18.054 | 82.396 | -64.342 | 0.21911 | | KK, rainbow, ten or higher | 21.495 | 82.396 | -60.901 | 0.26087 | | KK, rainbow, nine or lower | 9.004 | 82.396 | -73.392 | 0.10928 | | KK, two-tone | 18.971 | 82.396 | -63.425 | 0.23024 | | KK, monotone | 23.788 | 82.396 | -58.608 | 0.28870 | | KK, paired | 13.426 | 82.396 | -68.970 | 0.16294 | ## Does a shared suit matter? When the hands share a suit, AA holds 82.08%; when they do not, it holds 81.26%. AA does better with a shared suit, by 0.82 points. **AA against KK by suit overlap, in percent** | Deals | Specific deals | Share of deals | AA wins | Ties | KK wins | AA equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 30 | 83.33 | 81.845 | 0.479 | 17.676 | 82.084 | | No shared suit | 6 | 16.67 | 81.064 | 0.382 | 18.554 | 81.255 | ## How often this matchup comes up Exactly 36 specific deals fit this matchup in one seat order, which is 0.0022% of 1,624,350; both orders together give 72, or 0.0044%. ## A worked example Take a $200 pot built from $100 each. AA's equity of 81.95% is worth $163.90, a $63.90 edge, and KK's 18.05% is worth $36.10, which is $63.90 under its stake. Per 1,000 deals: AA wins about 817, KK wins about 178, and about 5 end in a split pot. ## The same matchup from the other side If you came looking for KK against AA, the numbers are the same with the hands swapped: 18.05% and 81.95%. ## Keep exploring Try AsAh against KdKc 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 AsAh against KdKc in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsAh&p2=KdKc) - [AA combos](https://georgelipoker.com/combos/aa.md) - [KK combos](https://georgelipoker.com/combos/kk.md) - [AA vs QQ](https://georgelipoker.com/equity/aa-vs-qq.md) - [AA vs JJ](https://georgelipoker.com/equity/aa-vs-jj.md) - [AA vs TT](https://georgelipoker.com/equity/aa-vs-tt.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 36 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 - [AA vs QQ: preflop equity](https://georgelipoker.com/equity/aa-vs-qq.md) - [AA vs JJ: preflop equity](https://georgelipoker.com/equity/aa-vs-jj.md) - [AA vs TT: preflop equity](https://georgelipoker.com/equity/aa-vs-tt.md)