--- title: "A9s vs KTo: preflop equity" url: "https://georgelipoker.com/equity/a9s-vs-kto.md" canonical_url: "https://georgelipoker.com/equity/a9s-vs-kto" last_updated: "2026-10-23" type: "reference" summary: "A9s is a big favorite over KTo before the flop: 60.15% to 39.85% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a9s-vs-qts.md", "https://georgelipoker.com/equity/a9s-vs-a4s.md", "https://georgelipoker.com/equity/ato-vs-kto.md"] --- # A9s vs KTo: preflop equity A9s is a big favorite over KTo before the flop: 60.15% to 39.85% equity, counted exactly over every board, with the split by flop type and suit. Counting every board, the equity split is 60.15% for A9s and 39.85% for KTo, so A9s leads by 20.30 points. ## A9s against KTo: the numbers **Exact preflop results for A9s against KTo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A9s | 59.922 | 0.450 | 39.628 | 60.147 | | KTo | 39.628 | 0.450 | 59.922 | 39.853 | A9s and KTo are a suited hand and an offsuit hand, in that order. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits. A9s is ahead, but KTo is far from dead: it takes 396 of every 1,000 deals outright. Ties are 0.45% of the outcomes here; each tied board gives both hands half the pot. By strength against a random hand, A9s holds place 18 of 169 and KTo holds place 33. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A9s | 49,250,000 | 370,000 | 32,570,000 | | KTo | 32,570,000 | 370,000 | 49,250,000 | The total is exact: 48 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. **A9s against KTo read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | A9s | 1.509 | 1.669 | 2.523 | 0.663 | | KTo | 0.663 | 2.523 | 1.669 | 1.509 | The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call. ## Who is ahead on which flops If you know the kind of flop that came, the numbers shift: A9s holds 76.16% on low rainbow flops (nine high or lower) and 53.04% on rainbow flops topped by a ten or better. A9s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **A9s against KTo by flop texture, in percent** | Flop | Share of flops | A9s wins | Ties | KTo wins | A9s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.988 | 52.957 | 0.156 | 46.887 | 53.035 | | Rainbow, nine or lower | 7.042 | 75.764 | 0.789 | 23.447 | 76.158 | | Two-tone | 46.667 | 59.648 | 0.274 | 40.078 | 59.785 | | Monotone | 5.212 | 55.396 | 2.370 | 42.234 | 56.581 | | Paired | 17.091 | 65.300 | 0.616 | 34.084 | 65.608 | 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 Each hand has a baseline against a random hand: 62.78% for A9s, 59.74% for KTo. Here the change is -2.63 and -19.89 points. **A9s and KTo 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 | | --- | --- | --- | --- | --- | | A9s, all flops | 60.147 | 62.781 | -2.634 | 0.95804 | | A9s, rainbow, ten or higher | 53.035 | 62.781 | -9.746 | 0.84476 | | A9s, rainbow, nine or lower | 76.158 | 62.781 | +13.377 | 1.21307 | | A9s, two-tone | 59.785 | 62.781 | -2.996 | 0.95228 | | A9s, monotone | 56.581 | 62.781 | -6.200 | 0.90124 | | A9s, paired | 65.608 | 62.781 | +2.827 | 1.04503 | | KTo, all flops | 39.853 | 59.739 | -19.886 | 0.66712 | | KTo, rainbow, ten or higher | 46.965 | 59.739 | -12.774 | 0.78617 | | KTo, rainbow, nine or lower | 23.842 | 59.739 | -35.897 | 0.39910 | | KTo, two-tone | 40.215 | 59.739 | -19.524 | 0.67318 | | KTo, monotone | 43.419 | 59.739 | -16.320 | 0.72681 | | KTo, paired | 34.392 | 59.739 | -25.347 | 0.57570 | ## Does a shared suit matter? Of the deals of this matchup, 24 share a suit (A9s at 59.82%) and 24 do not (60.48%). A9s does better with no shared suit, by 0.66 points. **A9s against KTo by suit overlap, in percent** | Deals | Specific deals | Share of deals | A9s wins | Ties | KTo wins | A9s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 59.570 | 0.491 | 39.939 | 59.816 | | No shared suit | 24 | 50.00 | 60.274 | 0.409 | 39.317 | 60.478 | ## How often this matchup comes up A9s against KTo is made up of 48 specific-card matchups in one seat order, 0.0030% of the 1,624,350 ordered deals, and 96 counting both seat orders, 0.0059%. ## A worked example Try it with money: two players each put in $100 and the whole board runs out every possible way. A9s averages $120.30 from the $200, up $20.30; KTo averages $79.70, down $20.30. Over a long run, 1,000 deals split into about 599 for A9s, 396 for KTo and 5 tied. ## The same matchup from the other side Swap the hands and you get KTo with 39.85% against A9s with 60.15%. We keep one page per matchup, with the better-ranked hand first. ## Keep exploring The calculator link fills in As9s against KhTd, a deal where the two hands share no suit. Change any card to test your own hand. The neighboring matchups below swap one of the two hands for one of similar strength. - [Open As9s against KhTd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As9s&p2=KhTd) - [A9s combos](https://georgelipoker.com/combos/a9s.md) - [KTo combos](https://georgelipoker.com/combos/kto.md) - [A9s vs QTs](https://georgelipoker.com/equity/a9s-vs-qts.md) - [A9s vs A4s](https://georgelipoker.com/equity/a9s-vs-a4s.md) - [ATo vs KTo](https://georgelipoker.com/equity/ato-vs-kto.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 48 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 - [A9s vs QTs: preflop equity](https://georgelipoker.com/equity/a9s-vs-qts.md) - [A9s vs A4s: preflop equity](https://georgelipoker.com/equity/a9s-vs-a4s.md) - [ATo vs KTo: preflop equity](https://georgelipoker.com/equity/ato-vs-kto.md)