--- title: "KK vs ATs: preflop equity" url: "https://georgelipoker.com/equity/kk-vs-ats.md" canonical_url: "https://georgelipoker.com/equity/kk-vs-ats" last_updated: "2026-10-23" type: "reference" summary: "KK is a big favorite over ATs before the flop: 67.43% to 32.57% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/kk-vs-aqo.md", "https://georgelipoker.com/equity/kk-vs-ajo.md", "https://georgelipoker.com/equity/qq-vs-ats.md"] --- # KK vs ATs: preflop equity KK is a big favorite over ATs before the flop: 67.43% to 32.57% equity, counted exactly over every board, with the split by flop type and suit. Over all 1,712,304 boards that can follow this deal, KK finishes with 67.43% of the pot and ATs with 32.57%. ## KK against ATs: the numbers **Exact preflop results for KK against ATs, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | KK | 67.225 | 0.411 | 32.364 | 67.431 | | ATs | 32.364 | 0.411 | 67.225 | 32.569 | Here a pocket pair (KK) meets a suited hand (ATs). The pair sits between the other hand's two cards: one is higher and one is lower, so the pair is exposed to the higher card. A lead of 34.86 points is large but not decisive: ATs still takes about 324 of every 1,000 deals. A split pot comes up on 0.41% of boards, so the wins and the equity differ by half of that. KK ranks number 2 of 169 starting hands, and ATs ranks number 13, by equity against a random hand. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | KK | 27,626,000 | 169,000 | 13,300,000 | | ATs | 13,300,000 | 169,000 | 27,626,000 | The total is exact: 24 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. **KK against ATs read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | KK | 2.070 | 1.488 | 3.090 | 0.483 | | ATs | 0.483 | 3.090 | 1.488 | 2.070 | The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity. ## Who is ahead on which flops Low rainbow flops (nine high or lower) are the best for KK (80.02%); monotone flops are the worst (62.86%). KK stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **KK against ATs by flop texture, in percent** | Flop | Share of flops | KK wins | Ties | ATs wins | KK equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.138 | 64.822 | 0.173 | 35.005 | 64.909 | | Rainbow, nine or lower | 7.771 | 79.508 | 1.020 | 19.472 | 80.018 | | Two-tone | 46.545 | 65.321 | 0.352 | 34.327 | 65.497 | | Monotone | 5.212 | 61.643 | 2.425 | 35.932 | 62.855 | | Paired | 17.334 | 71.717 | 0.010 | 28.273 | 71.722 | 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 Each hand has a baseline against a random hand: 82.40% for KK, 64.60% for ATs. Here the change is -14.97 and -32.03 points. **KK and ATs 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 | | --- | --- | --- | --- | --- | | KK, all flops | 67.431 | 82.396 | -14.965 | 0.81838 | | KK, rainbow, ten or higher | 64.909 | 82.396 | -17.487 | 0.78777 | | KK, rainbow, nine or lower | 80.018 | 82.396 | -2.378 | 0.97114 | | KK, two-tone | 65.497 | 82.396 | -16.899 | 0.79491 | | KK, monotone | 62.855 | 82.396 | -19.541 | 0.76284 | | KK, paired | 71.722 | 82.396 | -10.674 | 0.87045 | | ATs, all flops | 32.569 | 64.602 | -32.033 | 0.50415 | | ATs, rainbow, ten or higher | 35.091 | 64.602 | -29.511 | 0.54319 | | ATs, rainbow, nine or lower | 19.982 | 64.602 | -44.620 | 0.30931 | | ATs, two-tone | 34.503 | 64.602 | -30.099 | 0.53409 | | ATs, monotone | 37.145 | 64.602 | -27.457 | 0.57498 | | ATs, paired | 28.278 | 64.602 | -36.324 | 0.43773 | ## Does a shared suit matter? Two kinds of deal exist here. In 12 of them the hands share a suit and KK holds 67.70%. In 12 they do not, and it holds 67.16%. KK does better with a shared suit, by 0.54 points. **KK against ATs by suit overlap, in percent** | Deals | Specific deals | Share of deals | KK wins | Ties | ATs wins | KK equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 67.471 | 0.452 | 32.077 | 67.697 | | No shared suit | 12 | 50.00 | 66.978 | 0.371 | 32.651 | 67.164 | ## How often this matchup comes up The class pair covers 24 combinations of specific cards in a fixed seat order, 0.0015% of 1,624,350, and 48 (0.0030%) in either order. ## A worked example Try it with money: two players each put in $100 and the whole board runs out every possible way. KK averages $134.86 from the $200, up $34.86; ATs averages $65.14, down $34.86. Think in thousands: about 672 of 1,000 go to KK, about 324 go to ATs, and about 4 are chopped. ## The same matchup from the other side ATs against KK adds nothing new: it is 32.57% for ATs and 67.43% for KK, the same figures reversed. ## Keep exploring Try KsKh against AdTd 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 KsKh against AdTd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=KsKh&p2=AdTd) - [KK combos](https://georgelipoker.com/combos/kk.md) - [ATs combos](https://georgelipoker.com/combos/ats.md) - [KK vs AQo](https://georgelipoker.com/equity/kk-vs-aqo.md) - [KK vs AJo](https://georgelipoker.com/equity/kk-vs-ajo.md) - [QQ vs ATs](https://georgelipoker.com/equity/qq-vs-ats.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed The page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 24 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [KK vs AQo: preflop equity](https://georgelipoker.com/equity/kk-vs-aqo.md) - [KK vs AJo: preflop equity](https://georgelipoker.com/equity/kk-vs-ajo.md) - [QQ vs ATs: preflop equity](https://georgelipoker.com/equity/qq-vs-ats.md)