--- title: "77 vs KJs: preflop equity" url: "https://georgelipoker.com/equity/77-vs-kjs.md" canonical_url: "https://georgelipoker.com/equity/77-vs-kjs" last_updated: "2026-10-23" type: "reference" summary: "77 vs KJs is close to a coin flip before the flop: 51.25% to 48.75% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/77-vs-a8s.md", "https://georgelipoker.com/equity/77-vs-kts.md", "https://georgelipoker.com/equity/aqs-vs-kjs.md"] --- # 77 vs KJs: preflop equity 77 vs KJs is close to a coin flip before the flop: 51.25% to 48.75% equity, counted exactly over every board, with the split by flop type and suit. In equity, 77 against KJs stands at 51.25% to 48.75%, a gap of 2.50 points. ## 77 against KJs: the numbers **Exact preflop results for 77 against KJs, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 77 | 51.028 | 0.439 | 48.533 | 51.248 | | KJs | 48.533 | 0.439 | 51.028 | 48.752 | The matchup pits a pocket pair against a suited hand. A pair against two higher cards is the classic race: the pair is usually a small favorite or close to even, and each overcard that pairs is a way to take the lead. With only 2.50 points between them, the board decides this matchup far more than the cards in hand. About 0.44% of boards chop the pot, which is why equity sits slightly above the win figure for both hands. 77 ranks number 9 of 169 starting hands, and KJs ranks number 20, by equity against a random hand. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | 77 | 20,970,000 | 180,000 | 19,945,000 | | KJs | 19,945,000 | 180,000 | 20,970,000 | Exact total: 24 deals times 1,712,304 boards. The other three counts come from the five-decimal percentages and are rounded to the nearest thousand, so read them as approximate. **77 against KJs 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 | 1.051 | 1.960 | 2.060 | 0.951 | | KJs | 0.951 | 2.060 | 1.960 | 1.051 | 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 77 prefers low rainbow flops (nine high or lower), where it holds 78.19%, and likes rainbow flops topped by a ten or better least, where it holds 44.65%. Watch for rainbow flops topped by a ten or better and two-tone flops: on those flops KJs holds the better equity. **77 against KJs by flop texture, in percent** | Flop | Share of flops | 77 wins | Ties | KJs wins | 77 equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.595 | 44.546 | 0.205 | 55.249 | 44.649 | | Rainbow, nine or lower | 6.314 | 77.861 | 0.657 | 21.482 | 78.189 | | Two-tone | 46.545 | 49.218 | 0.278 | 50.504 | 49.357 | | Monotone | 5.212 | 49.532 | 2.411 | 48.057 | 50.737 | | Paired | 17.334 | 55.761 | 0.535 | 43.704 | 56.028 | A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank. ## Compared with a random hand Relative to a random opponent, 77 changes by -14.99 points (baseline 66.24%) and KJs by -13.82 points (baseline 62.57%). **77 and KJs 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 | 51.248 | 66.236 | -14.988 | 0.77372 | | 77, rainbow, ten or higher | 44.649 | 66.236 | -21.587 | 0.67409 | | 77, rainbow, nine or lower | 78.189 | 66.236 | +11.953 | 1.18046 | | 77, two-tone | 49.357 | 66.236 | -16.879 | 0.74517 | | 77, monotone | 50.737 | 66.236 | -15.499 | 0.76600 | | 77, paired | 56.028 | 66.236 | -10.208 | 0.84588 | | KJs, all flops | 48.752 | 62.567 | -13.815 | 0.77920 | | KJs, rainbow, ten or higher | 55.351 | 62.567 | -7.216 | 0.88467 | | KJs, rainbow, nine or lower | 21.811 | 62.567 | -40.756 | 0.34860 | | KJs, two-tone | 50.643 | 62.567 | -11.924 | 0.80942 | | KJs, monotone | 49.263 | 62.567 | -13.304 | 0.78736 | | KJs, paired | 43.972 | 62.567 | -18.595 | 0.70280 | ## Does a shared suit matter? Of the deals of this matchup, 12 share a suit (77 at 51.41%) and 12 do not (51.08%). 77 does better with a shared suit, by 0.33 points. **77 against KJs by suit overlap, in percent** | Deals | Specific deals | Share of deals | 77 wins | Ties | KJs wins | 77 equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 51.171 | 0.483 | 48.346 | 51.413 | | No shared suit | 12 | 50.00 | 50.884 | 0.396 | 48.720 | 51.082 | ## How often this matchup comes up Exactly 24 specific deals fit this matchup in one seat order, which is 0.0015% of 1,624,350; both orders together give 48, or 0.0030%. ## A worked example Say each player puts $100 in before the flop, making a $200 pot. On average 77 takes back $102.50 of it, which is $2.50 more than it put in, and KJs takes back $97.50, $2.50 less than it put in. Run 1,000 deals and the tally comes out near 510 for 77, 485 for KJs and 5 ties. ## The same matchup from the other side KJs against 77 adds nothing new: it is 48.75% for KJs and 51.25% for 77, the same figures reversed. ## Keep exploring The calculator link fills in 7s7h against KdJd, 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 7s7h against KdJd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=7s7h&p2=KdJd) - [77 combos](https://georgelipoker.com/combos/77.md) - [KJs combos](https://georgelipoker.com/combos/kjs.md) - [77 vs A8s](https://georgelipoker.com/equity/77-vs-a8s.md) - [77 vs KTs](https://georgelipoker.com/equity/77-vs-kts.md) - [AQs vs KJs](https://georgelipoker.com/equity/aqs-vs-kjs.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed The page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 24 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [77 vs A8s: preflop equity](https://georgelipoker.com/equity/77-vs-a8s.md) - [77 vs KTs: preflop equity](https://georgelipoker.com/equity/77-vs-kts.md) - [AQs vs KJs: preflop equity](https://georgelipoker.com/equity/aqs-vs-kjs.md)