--- title: "66 vs KJo: preflop equity" url: "https://georgelipoker.com/equity/66-vs-kjo.md" canonical_url: "https://georgelipoker.com/equity/66-vs-kjo" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, 66 or KJo? 66 leads 53.03% to 46.98% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/66-vs-55.md", "https://georgelipoker.com/equity/66-vs-qjs.md", "https://georgelipoker.com/equity/a9s-vs-kjo.md"] --- # 66 vs KJo: preflop equity Who is ahead, 66 or KJo? 66 leads 53.03% to 46.98% before the flop, counted exactly over every board, with the split by flop type and suit. Over all 1,712,304 boards that can follow this deal, 66 finishes with 53.03% of the pot and KJo with 46.97%. ## 66 against KJo: the numbers **Exact preflop results for 66 against KJo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 66 | 52.796 | 0.459 | 46.745 | 53.025 | | KJo | 46.745 | 0.459 | 52.796 | 46.975 | The first hand is a pocket pair; the second is an offsuit hand. This is a pair against two overcards, a matchup that stays close because the other hand only needs one of its ranks to appear. With only 6.06 points between them, the board decides this matchup far more than the cards in hand. The tie share is 0.46%: on those boards the pot is chopped and neither hand wins outright. Among the 169 starting hands, 66 is number 17 and KJo is number 26 by strength against a random hand. **Boards behind the percentages: 123,285,888 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | 66 | 65,090,000 | 566,000 | 57,630,000 | | KJo | 57,630,000 | 566,000 | 65,090,000 | The board total is exact, 72 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **66 against KJo read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | 66 | 1.129 | 1.894 | 2.139 | 0.886 | | KJo | 0.886 | 2.139 | 1.894 | 1.129 | 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 Split by what the flop looks like, 66 peaks at 80.39% on low rainbow flops (nine high or lower) and bottoms out at 45.33% on rainbow flops topped by a ten or better. KJo is ahead on rainbow flops topped by a ten or better, even though it trails 66 when every flop is counted. **66 against KJo by flop texture, in percent** | Flop | Share of flops | 66 wins | Ties | KJo wins | 66 equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.717 | 45.220 | 0.211 | 54.569 | 45.325 | | Rainbow, nine or lower | 6.314 | 80.020 | 0.737 | 19.243 | 80.389 | | Two-tone | 46.485 | 52.040 | 0.306 | 47.654 | 52.193 | | Monotone | 5.151 | 49.209 | 1.762 | 49.029 | 50.090 | | Paired | 17.333 | 56.775 | 0.733 | 42.492 | 57.142 | Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank. ## Compared with a random hand Against one random hand instead, 66 holds 63.29% and KJo holds 60.57%. Facing each other changes that by -10.26 points for 66 and -13.60 points for KJo. **66 and KJo 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 | | --- | --- | --- | --- | --- | | 66, all flops | 53.025 | 63.285 | -10.260 | 0.83788 | | 66, rainbow, ten or higher | 45.325 | 63.285 | -17.960 | 0.71620 | | 66, rainbow, nine or lower | 80.389 | 63.285 | +17.104 | 1.27027 | | 66, two-tone | 52.193 | 63.285 | -11.092 | 0.82473 | | 66, monotone | 50.090 | 63.285 | -13.195 | 0.79150 | | 66, paired | 57.142 | 63.285 | -6.143 | 0.90293 | | KJo, all flops | 46.975 | 60.569 | -13.594 | 0.77556 | | KJo, rainbow, ten or higher | 54.675 | 60.569 | -5.894 | 0.90269 | | KJo, rainbow, nine or lower | 19.611 | 60.569 | -40.958 | 0.32378 | | KJo, two-tone | 47.807 | 60.569 | -12.762 | 0.78930 | | KJo, monotone | 49.910 | 60.569 | -10.659 | 0.82402 | | KJo, paired | 42.858 | 60.569 | -17.711 | 0.70759 | ## Does a shared suit matter? Two kinds of deal exist here. In 60 of them the hands share a suit and 66 holds 52.94%. In 12 they do not, and it holds 53.45%. 66 does better with no shared suit, by 0.51 points. **66 against KJo by suit overlap, in percent** | Deals | Specific deals | Share of deals | 66 wins | Ties | KJo wins | 66 equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 60 | 83.33 | 52.702 | 0.474 | 46.824 | 52.939 | | No shared suit | 12 | 16.67 | 53.262 | 0.382 | 46.356 | 53.453 | ## How often this matchup comes up How often does it happen? 72 of the 1,624,350 ordered deals (0.0044%) are 66 against KJo, and 144 (0.0089%) if either hand may sit in either seat. ## A worked example With $100 from each side, the $200 pot is split on average as $106.06 for 66 and $93.94 for KJo; the first side gains $6.06 per all-in and the second gives up $6.06. Scaled to 1,000 deals, that is roughly 528 wins for 66, 467 for KJo and 5 chopped pots. ## The same matchup from the other side KJo versus 66 is this same page seen from the other hand: 46.97% for KJo, 53.03% for 66. ## Keep exploring 6s6h against KdJc 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 6s6h against KdJc in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=6s6h&p2=KdJc) - [66 combos](https://georgelipoker.com/combos/66.md) - [KJo combos](https://georgelipoker.com/combos/kjo.md) - [66 vs 55](https://georgelipoker.com/equity/66-vs-55.md) - [66 vs QJs](https://georgelipoker.com/equity/66-vs-qjs.md) - [A9s vs KJo](https://georgelipoker.com/equity/a9s-vs-kjo.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed We counted every case. Each suit pattern of the 72 specific 66 against KJo deals meets all 1,712,304 boards, and the better five-card hand wins; a split pot is half a win each. The flop table reads each board under all ten of its three-card flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [66 vs 55: preflop equity](https://georgelipoker.com/equity/66-vs-55.md) - [66 vs QJs: preflop equity](https://georgelipoker.com/equity/66-vs-qjs.md) - [A9s vs KJo: preflop equity](https://georgelipoker.com/equity/a9s-vs-kjo.md)