--- title: "77 vs K9s: preflop equity" url: "https://georgelipoker.com/equity/77-vs-k9s.md" canonical_url: "https://georgelipoker.com/equity/77-vs-k9s" last_updated: "2026-10-23" type: "reference" summary: "77 vs K9s is close to a coin flip before the flop: 52.88% to 47.12% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/77-vs-a5s.md", "https://georgelipoker.com/equity/77-vs-a6s.md", "https://georgelipoker.com/equity/aqs-vs-k9s.md"] --- # 77 vs K9s: preflop equity 77 vs K9s is close to a coin flip before the flop: 52.88% to 47.12% equity, counted exactly over every board, with the split by flop type and suit. If 77 and K9s get all the chips in before the flop, 77 owns 52.88% of the pot in the long run and K9s owns 47.12%. ## 77 against K9s: the numbers **Exact preflop results for 77 against K9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 77 | 52.657 | 0.447 | 46.896 | 52.880 | | K9s | 46.896 | 0.447 | 52.657 | 47.120 | We compare a pocket pair with a suited hand. One hand holds a pair and the other holds two cards that both outrank it, which keeps the equity closer than most people expect. 77 leads by less than 6 points of equity, so the result of any one deal is close to a toss-up. Ties are 0.45% of the outcomes here; each tied board gives both hands half the pot. In the ranking of all 169 starting hands, 77 is number 9 and K9s is number 29. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | 77 | 21,640,000 | 184,000 | 19,272,000 | | K9s | 19,272,000 | 184,000 | 21,640,000 | The board total is exact, 24 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **77 against K9s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | 77 | 1.122 | 1.899 | 2.132 | 0.891 | | K9s | 0.891 | 2.132 | 1.899 | 1.122 | The final column gives the least the pot must offer for each unit called for a call to break even at this equity. ## Who is ahead on which flops If you know the kind of flop that came, the numbers shift: 77 holds 62.43% on low rainbow flops (nine high or lower) and 51.08% on two-tone flops. 77 stays ahead on all five textures. **77 against K9s by flop texture, in percent** | Flop | Share of flops | 77 wins | Ties | K9s wins | 77 equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.220 | 51.235 | 0.242 | 48.523 | 51.356 | | Rainbow, nine or lower | 5.689 | 62.150 | 0.554 | 37.296 | 62.427 | | Two-tone | 46.545 | 50.940 | 0.279 | 48.781 | 51.080 | | Monotone | 5.212 | 50.697 | 2.412 | 46.891 | 51.903 | | Paired | 17.334 | 56.807 | 0.570 | 42.623 | 57.092 | 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 Each hand has a baseline against a random hand: 66.24% for 77, 59.99% for K9s. Here the change is -13.36 and -12.87 points. **77 and K9s 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 | | --- | --- | --- | --- | --- | | 77, all flops | 52.880 | 66.236 | -13.356 | 0.79836 | | 77, rainbow, ten or higher | 51.356 | 66.236 | -14.880 | 0.77535 | | 77, rainbow, nine or lower | 62.427 | 66.236 | -3.809 | 0.94249 | | 77, two-tone | 51.080 | 66.236 | -15.156 | 0.77118 | | 77, monotone | 51.903 | 66.236 | -14.333 | 0.78361 | | 77, paired | 57.092 | 66.236 | -9.144 | 0.86195 | | K9s, all flops | 47.120 | 59.988 | -12.868 | 0.78549 | | K9s, rainbow, ten or higher | 48.644 | 59.988 | -11.344 | 0.81090 | | K9s, rainbow, nine or lower | 37.573 | 59.988 | -22.415 | 0.62634 | | K9s, two-tone | 48.920 | 59.988 | -11.068 | 0.81550 | | K9s, monotone | 48.097 | 59.988 | -11.891 | 0.80178 | | K9s, paired | 42.908 | 59.988 | -17.080 | 0.71528 | ## Does a shared suit matter? The suit split reads 53.05% for 77 with a shared suit and 52.71% without one. 77 does better with a shared suit, by 0.34 points. **77 against K9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | 77 wins | Ties | K9s wins | 77 equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 52.803 | 0.489 | 46.708 | 53.048 | | No shared suit | 12 | 50.00 | 52.510 | 0.405 | 47.085 | 52.712 | ## How often this matchup comes up How often does it happen? 24 of the 1,624,350 ordered deals (0.0015%) are 77 against K9s, and 48 (0.0030%) if either hand may sit in either seat. ## A worked example A $100 all-in from each player makes a $200 pot, and the exact equity says 77 gets $105.76 of it on average and K9s gets $94.24. Out of 1,000 deals you should see around 527 outright wins for 77, 469 for K9s, and 4 split pots. ## The same matchup from the other side The reversed view, K9s against 77, shows 47.12% for K9s and 52.88% for 77. It is the same count, so it redirects here. ## Keep exploring Try 7s7h against Kd9d 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 7s7h against Kd9d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=7s7h&p2=Kd9d) - [77 combos](https://georgelipoker.com/combos/77.md) - [K9s combos](https://georgelipoker.com/combos/k9s.md) - [77 vs A5s](https://georgelipoker.com/equity/77-vs-a5s.md) - [77 vs A6s](https://georgelipoker.com/equity/77-vs-a6s.md) - [AQs vs K9s](https://georgelipoker.com/equity/aqs-vs-k9s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Nothing here is simulated. The 24 deals of 77 against K9s 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 - [77 vs A5s: preflop equity](https://georgelipoker.com/equity/77-vs-a5s.md) - [77 vs A6s: preflop equity](https://georgelipoker.com/equity/77-vs-a6s.md) - [AQs vs K9s: preflop equity](https://georgelipoker.com/equity/aqs-vs-k9s.md)