--- title: "KJs vs 64s: preflop equity" url: "https://georgelipoker.com/equity/kjs-vs-64s.md" canonical_url: "https://georgelipoker.com/equity/kjs-vs-64s" last_updated: "2026-10-23" type: "reference" summary: "KJs is a big favorite over 64s before the flop: 63.16% to 36.84% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/kjs-vs-53s.md", "https://georgelipoker.com/equity/kjs-vs-43s.md", "https://georgelipoker.com/equity/a8s-vs-64s.md"] --- # KJs vs 64s: preflop equity KJs is a big favorite over 64s before the flop: 63.16% to 36.84% equity, counted exactly over every board, with the split by flop type and suit. Before any board card is dealt, KJs holds 63.16% equity against 64s, which leaves 64s with 36.84%. ## KJs against 64s: the numbers **Exact preflop results for KJs against 64s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | KJs | 62.807 | 0.713 | 36.480 | 63.163 | | 64s | 36.480 | 0.713 | 62.807 | 36.837 | Each side holds one of the suited hands: KJs and 64s. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances. A 26.32 point lead is real, and 64s still takes about 365 of every 1,000 deals outright. The tie share is 0.71%: on those boards the pot is chopped and neither hand wins outright. For context, KJs sits at number 20 of 169 starting hands and 64s at number 138 when each is run against a random hand. **Boards behind the percentages: 27,396,864 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | KJs | 17,207,000 | 195,000 | 9,994,000 | | 64s | 9,994,000 | 195,000 | 17,207,000 | 16 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand. **KJs against 64s 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 | 1.715 | 1.592 | 2.741 | 0.583 | | 64s | 0.583 | 2.741 | 1.592 | 1.715 | 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 Split by what the flop looks like, KJs peaks at 70.54% on rainbow flops topped by a ten or better and bottoms out at 35.91% on low rainbow flops (nine high or lower). 64s takes over on low rainbow flops (nine high or lower), so the favorite before the flop is the underdog on those boards. **KJs against 64s by flop texture, in percent** | Flop | Share of flops | KJs wins | Ties | 64s wins | KJs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.595 | 70.401 | 0.283 | 29.316 | 70.543 | | Rainbow, nine or lower | 6.314 | 35.502 | 0.821 | 63.677 | 35.913 | | Two-tone | 46.727 | 62.333 | 0.361 | 37.306 | 62.514 | | Monotone | 5.273 | 58.569 | 3.531 | 37.900 | 60.334 | | Paired | 17.091 | 64.568 | 1.386 | 34.046 | 65.261 | Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank. ## Compared with a random hand Start from the random-hand figures, 62.57% for KJs and 41.33% for 64s. This opponent changes them by +0.59 and -4.49 points. **KJs and 64s 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 | 63.163 | 62.567 | +0.596 | 1.00953 | | KJs, rainbow, ten or higher | 70.543 | 62.567 | +7.976 | 1.12748 | | KJs, rainbow, nine or lower | 35.913 | 62.567 | -26.654 | 0.57399 | | KJs, two-tone | 62.514 | 62.567 | -0.053 | 0.99915 | | KJs, monotone | 60.334 | 62.567 | -2.233 | 0.96431 | | KJs, paired | 65.261 | 62.567 | +2.694 | 1.04306 | | 64s, all flops | 36.837 | 41.333 | -4.496 | 0.89122 | | 64s, rainbow, ten or higher | 29.457 | 41.333 | -11.876 | 0.71268 | | 64s, rainbow, nine or lower | 64.087 | 41.333 | +22.754 | 1.55050 | | 64s, two-tone | 37.486 | 41.333 | -3.847 | 0.90693 | | 64s, monotone | 39.666 | 41.333 | -1.667 | 0.95967 | | 64s, paired | 34.739 | 41.333 | -6.594 | 0.84047 | ## Does a shared suit matter? Split by suits, the deals give KJs 65.49% when the hands overlap in a suit and 62.39% when they do not. KJs does better with a shared suit, by 3.10 points. **KJs against 64s by suit overlap, in percent** | Deals | Specific deals | Share of deals | KJs wins | Ties | 64s wins | KJs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 4 | 25.00 | 65.087 | 0.804 | 34.109 | 65.489 | | No shared suit | 12 | 75.00 | 62.047 | 0.683 | 37.270 | 62.388 | ## How often this matchup comes up The class pair covers 16 combinations of specific cards in a fixed seat order, 0.0010% of 1,624,350, and 32 (0.0020%) in either order. ## A worked example Take a $200 pot built from $100 each. KJs' equity of 63.16% is worth $126.32, a $26.32 edge, and 64s' 36.84% is worth $73.68, which is $26.32 under its stake. A thousand deals look like this: KJs takes 628, 64s takes 365, 7 are ties. ## The same matchup from the other side The reversed view, 64s against KJs, shows 36.84% for 64s and 63.16% for KJs. It is the same count, so it redirects here. ## Keep exploring KsJs against 6h4h 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 6h4h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=KsJs&p2=6h4h) - [KJs combos](https://georgelipoker.com/combos/kjs.md) - [64s combos](https://georgelipoker.com/combos/64s.md) - [KJs vs 53s](https://georgelipoker.com/equity/kjs-vs-53s.md) - [KJs vs 43s](https://georgelipoker.com/equity/kjs-vs-43s.md) - [A8s vs 64s](https://georgelipoker.com/equity/a8s-vs-64s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Nothing here is simulated. The 16 deals of KJs against 64s fall into a few suit patterns, each dealt against all 1,712,304 boards, with both best five-card hands compared on every board. Ties give each hand half a win, and the flop rows count a board under each of its ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [KJs vs 53s: preflop equity](https://georgelipoker.com/equity/kjs-vs-53s.md) - [KJs vs 43s: preflop equity](https://georgelipoker.com/equity/kjs-vs-43s.md) - [A8s vs 64s: preflop equity](https://georgelipoker.com/equity/a8s-vs-64s.md)