--- title: "KJs vs A7s: preflop equity" url: "https://georgelipoker.com/equity/kjs-vs-a7s.md" canonical_url: "https://georgelipoker.com/equity/kjs-vs-a7s" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, KJs or A7s? A7s leads 56.98% to 43.02% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/kjs-vs-a9o.md", "https://georgelipoker.com/equity/kjs-vs-kjo.md", "https://georgelipoker.com/equity/a8s-vs-a7s.md"] --- # KJs vs A7s: preflop equity Who is ahead, KJs or A7s? A7s leads 56.98% to 43.02% before the flop, counted exactly over every board, with the split by flop type and suit. The exact count puts A7s at 56.98% and KJs at 43.02% when the two hands see all five board cards. ## KJs against A7s: the numbers **Exact preflop results for KJs against A7s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | KJs | 42.776 | 0.482 | 56.742 | 43.017 | | A7s | 56.742 | 0.482 | 42.776 | 56.983 | KJs meets A7s, and both are suited hands. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits. The lead is steady rather than large, and the flop still has plenty of say in who wins. The tie share is 0.48%: on those boards the pot is chopped and neither hand wins outright. The hand ranking puts KJs at 20 and A7s at 24 out of 169 starting hands. **Boards behind the percentages: 27,396,864 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | KJs | 11,719,000 | 132,000 | 15,546,000 | | A7s | 15,546,000 | 132,000 | 11,719,000 | The board total is exact, 16 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **KJs against A7s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | KJs | 0.755 | 2.338 | 1.762 | 1.325 | | A7s | 1.325 | 1.762 | 2.338 | 0.755 | 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 Across the five flop textures A7s' equity moves by 24.00 points, from 50.82% on rainbow flops topped by a ten or better to 74.82% on low rainbow flops (nine high or lower). A7s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **KJs against A7s by flop texture, in percent** | Flop | Share of flops | KJs wins | Ties | A7s wins | KJs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 49.115 | 0.121 | 50.764 | 49.176 | | Rainbow, nine or lower | 7.042 | 24.796 | 0.778 | 74.426 | 25.185 | | Two-tone | 46.727 | 44.088 | 0.243 | 55.669 | 44.209 | | Monotone | 5.273 | 43.892 | 3.402 | 52.706 | 45.593 | | Paired | 17.091 | 37.399 | 0.620 | 61.981 | 37.709 | 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 Relative to a random opponent, KJs changes by -19.55 points (baseline 62.57%) and A7s by -4.00 points (baseline 60.98%). **KJs and A7s 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 | | --- | --- | --- | --- | --- | | KJs, all flops | 43.017 | 62.567 | -19.550 | 0.68753 | | KJs, rainbow, ten or higher | 49.176 | 62.567 | -13.391 | 0.78597 | | KJs, rainbow, nine or lower | 25.185 | 62.567 | -37.382 | 0.40253 | | KJs, two-tone | 44.209 | 62.567 | -18.358 | 0.70659 | | KJs, monotone | 45.593 | 62.567 | -16.974 | 0.72871 | | KJs, paired | 37.709 | 62.567 | -24.858 | 0.60270 | | A7s, all flops | 56.983 | 60.984 | -4.001 | 0.93439 | | A7s, rainbow, ten or higher | 50.824 | 60.984 | -10.160 | 0.83340 | | A7s, rainbow, nine or lower | 74.815 | 60.984 | +13.831 | 1.22680 | | A7s, two-tone | 55.791 | 60.984 | -5.193 | 0.91485 | | A7s, monotone | 54.407 | 60.984 | -6.577 | 0.89215 | | A7s, paired | 62.291 | 60.984 | +1.307 | 1.02143 | ## Does a shared suit matter? The suit split reads 58.88% for A7s with a shared suit and 56.35% without one. A7s does better with a shared suit, by 2.53 points. **KJs against A7s by suit overlap, in percent** | Deals | Specific deals | Share of deals | KJs wins | Ties | A7s wins | KJs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 4 | 25.00 | 40.846 | 0.559 | 58.595 | 41.125 | | No shared suit | 12 | 75.00 | 43.419 | 0.457 | 56.124 | 43.648 | ## How often this matchup comes up Out of 1,624,350 ways to deal two seats two cards each, 16 are KJs in one seat and A7s in the other (0.0010%); with the seats swapped too, 32 (0.0020%). ## A worked example Try it with money: two players each put in $100 and the whole board runs out every possible way. A7s averages $113.96 from the $200, up $13.96; KJs averages $86.04, down $13.96. Think in thousands: about 567 of 1,000 go to A7s, about 428 go to KJs, and about 5 are chopped. ## The same matchup from the other side A7s versus KJs is this same page seen from the other hand: 56.98% for A7s, 43.02% for KJs. ## Keep exploring KsJs against Ah7h 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 KsJs against Ah7h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=KsJs&p2=Ah7h) - [KJs combos](https://georgelipoker.com/combos/kjs.md) - [A7s combos](https://georgelipoker.com/combos/a7s.md) - [KJs vs A9o](https://georgelipoker.com/equity/kjs-vs-a9o.md) - [KJs vs KJo](https://georgelipoker.com/equity/kjs-vs-kjo.md) - [A8s vs A7s](https://georgelipoker.com/equity/a8s-vs-a7s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 16 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [KJs vs A9o: preflop equity](https://georgelipoker.com/equity/kjs-vs-a9o.md) - [KJs vs KJo: preflop equity](https://georgelipoker.com/equity/kjs-vs-kjo.md) - [A8s vs A7s: preflop equity](https://georgelipoker.com/equity/a8s-vs-a7s.md)