--- title: "KK vs 87s: preflop equity" url: "https://georgelipoker.com/equity/kk-vs-87s.md" canonical_url: "https://georgelipoker.com/equity/kk-vs-87s" last_updated: "2026-10-23" type: "reference" summary: "KK is a big favorite over 87s before the flop: 77.93% to 22.07% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/kk-vs-86s.md", "https://georgelipoker.com/equity/kk-vs-76s.md", "https://georgelipoker.com/equity/qq-vs-87s.md"] --- # KK vs 87s: preflop equity KK is a big favorite over 87s before the flop: 77.93% to 22.07% equity, counted exactly over every board, with the split by flop type and suit. The exact count puts KK at 77.93% and 87s at 22.07% when the two hands see all five board cards. ## KK against 87s: the numbers **Exact preflop results for KK against 87s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | KK | 77.753 | 0.362 | 21.885 | 77.934 | | 87s | 21.885 | 0.362 | 77.753 | 22.066 | KK is a pocket pair and 87s is a suited hand. A pair against two lower cards is a lopsided matchup: the pair is ahead and the other hand has no overcard to catch. That is a clear edge, 77.93% to 22.07%, but 87s still wins often enough that one hand proves nothing. A split pot comes up on 0.36% of boards, so the wins and the equity differ by half of that. Among the 169 starting hands, KK is number 2 and 87s is number 100 by strength against a random hand. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | KK | 31,953,000 | 149,000 | 8,994,000 | | 87s | 8,994,000 | 149,000 | 31,953,000 | 24 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. **KK against 87s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | KK | 3.532 | 1.286 | 4.569 | 0.283 | | 87s | 0.283 | 4.569 | 1.286 | 3.532 | 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: KK holds 82.33% on rainbow flops topped by a ten or better and 67.64% on low rainbow flops (nine high or lower). KK stays ahead on all five textures. **KK against 87s by flop texture, in percent** | Flop | Share of flops | KK wins | Ties | 87s wins | KK equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.595 | 82.218 | 0.214 | 17.568 | 82.325 | | Rainbow, nine or lower | 6.314 | 67.337 | 0.610 | 32.053 | 67.642 | | Two-tone | 46.545 | 75.827 | 0.280 | 23.893 | 75.967 | | Monotone | 5.212 | 71.681 | 2.391 | 25.928 | 72.876 | | Paired | 17.334 | 82.212 | 0.092 | 17.696 | 82.258 | 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 Start from the random-hand figures, 82.40% for KK and 47.94% for 87s. This opponent changes them by -4.47 and -25.87 points. **KK and 87s 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 | | --- | --- | --- | --- | --- | | KK, all flops | 77.934 | 82.396 | -4.462 | 0.94585 | | KK, rainbow, ten or higher | 82.325 | 82.396 | -0.071 | 0.99914 | | KK, rainbow, nine or lower | 67.642 | 82.396 | -14.754 | 0.82094 | | KK, two-tone | 75.967 | 82.396 | -6.429 | 0.92197 | | KK, monotone | 72.876 | 82.396 | -9.520 | 0.88446 | | KK, paired | 82.258 | 82.396 | -0.138 | 0.99833 | | 87s, all flops | 22.066 | 47.936 | -25.870 | 0.46032 | | 87s, rainbow, ten or higher | 17.675 | 47.936 | -30.261 | 0.36872 | | 87s, rainbow, nine or lower | 32.358 | 47.936 | -15.578 | 0.67503 | | 87s, two-tone | 24.033 | 47.936 | -23.903 | 0.50136 | | 87s, monotone | 27.124 | 47.936 | -20.812 | 0.56584 | | 87s, paired | 17.742 | 47.936 | -30.194 | 0.37012 | ## Does a shared suit matter? Looking only at deals where the hands share a suit, KK has 78.50%; looking only at deals where they do not, 77.37%. KK does better with a shared suit, by 1.13 points. **KK against 87s by suit overlap, in percent** | Deals | Specific deals | Share of deals | KK wins | Ties | 87s wins | KK equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 78.296 | 0.404 | 21.300 | 78.498 | | No shared suit | 12 | 50.00 | 77.211 | 0.320 | 22.469 | 77.371 | ## How often this matchup comes up How often does it happen? 24 of the 1,624,350 ordered deals (0.0015%) are KK against 87s, and 48 (0.0030%) if either hand may sit in either seat. ## A worked example Put $100 each into a $200 pot and deal every board once: KK averages $155.86 back, ahead of its $100 by $55.86, while 87s averages $44.14, short of its $100 by $55.86. Out of 1,000 deals you should see around 777 outright wins for KK, 219 for 87s, and 4 split pots. ## The same matchup from the other side The reversed view, 87s against KK, shows 22.07% for 87s and 77.93% for KK. It is the same count, so it redirects here. ## Keep exploring Open the calculator with KsKh against 8d7d already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking. - [Open KsKh against 8d7d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=KsKh&p2=8d7d) - [KK combos](https://georgelipoker.com/combos/kk.md) - [87s combos](https://georgelipoker.com/combos/87s.md) - [KK vs 86s](https://georgelipoker.com/equity/kk-vs-86s.md) - [KK vs 76s](https://georgelipoker.com/equity/kk-vs-76s.md) - [QQ vs 87s](https://georgelipoker.com/equity/qq-vs-87s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 24 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 - [KK vs 86s: preflop equity](https://georgelipoker.com/equity/kk-vs-86s.md) - [KK vs 76s: preflop equity](https://georgelipoker.com/equity/kk-vs-76s.md) - [QQ vs 87s: preflop equity](https://georgelipoker.com/equity/qq-vs-87s.md)