--- title: "77 vs 64s: preflop equity" url: "https://georgelipoker.com/equity/77-vs-64s.md" canonical_url: "https://georgelipoker.com/equity/77-vs-64s" last_updated: "2026-10-23" type: "reference" summary: "77 is a big favorite over 64s before the flop: 81.79% to 18.21% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/77-vs-53s.md", "https://georgelipoker.com/equity/77-vs-43s.md", "https://georgelipoker.com/equity/aqs-vs-64s.md"] --- # 77 vs 64s: preflop equity 77 is a big favorite over 64s before the flop: 81.79% to 18.21% equity, counted exactly over every board, with the split by flop type and suit. Dealt all in against each other, 77 takes 81.79% of the pot on average and 64s takes the other 18.21%. ## 77 against 64s: the numbers **Exact preflop results for 77 against 64s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 77 | 81.133 | 1.306 | 17.561 | 81.786 | | 64s | 17.561 | 1.306 | 81.133 | 18.214 | 77 is a pocket pair and 64s is a suited hand. Here a pair faces two cards that are both smaller, so the other hand needs to pair up and still be behind. This is one of the lopsided matchups: 64s wins only 17.56% of the boards outright. Of every 100 boards, about 1.31 are split pots, and the equity figures already include them. 77 ranks number 9 of 169 starting hands, and 64s ranks number 138, 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 | 33,342,000 | 537,000 | 7,217,000 | | 64s | 7,217,000 | 537,000 | 33,342,000 | 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 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) | | --- | --- | --- | --- | --- | | 77 | 4.490 | 1.233 | 5.694 | 0.223 | | 64s | 0.223 | 5.694 | 1.233 | 4.490 | The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call. ## Who is ahead on which flops Across the five flop textures 77's equity moves by 13.31 points, from 72.87% on low rainbow flops (nine high or lower) to 86.18% on rainbow flops topped by a ten or better. 77 stays ahead on all five textures. **77 against 64s by flop texture, in percent** | Flop | Share of flops | 77 wins | Ties | 64s wins | 77 equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.844 | 85.780 | 0.803 | 13.417 | 86.181 | | Rainbow, nine or lower | 5.065 | 72.622 | 0.486 | 26.892 | 72.865 | | Two-tone | 46.545 | 79.896 | 0.706 | 19.398 | 80.249 | | Monotone | 5.212 | 74.486 | 2.779 | 22.735 | 75.876 | | Paired | 17.334 | 82.009 | 3.467 | 14.524 | 83.742 | 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 How much does the opponent matter? Compared with its random-hand 66.24%, 77 changes by +15.55 points, and 64s, from 41.33%, by -23.12. **77 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 | | --- | --- | --- | --- | --- | | 77, all flops | 81.786 | 66.236 | +15.550 | 1.23477 | | 77, rainbow, ten or higher | 86.181 | 66.236 | +19.945 | 1.30112 | | 77, rainbow, nine or lower | 72.865 | 66.236 | +6.629 | 1.10008 | | 77, two-tone | 80.249 | 66.236 | +14.013 | 1.21156 | | 77, monotone | 75.876 | 66.236 | +9.640 | 1.14554 | | 77, paired | 83.742 | 66.236 | +17.506 | 1.26430 | | 64s, all flops | 18.214 | 41.333 | -23.119 | 0.44066 | | 64s, rainbow, ten or higher | 13.819 | 41.333 | -27.514 | 0.33433 | | 64s, rainbow, nine or lower | 27.135 | 41.333 | -14.198 | 0.65650 | | 64s, two-tone | 19.751 | 41.333 | -21.582 | 0.47785 | | 64s, monotone | 24.124 | 41.333 | -17.209 | 0.58365 | | 64s, paired | 16.258 | 41.333 | -25.075 | 0.39334 | ## Does a shared suit matter? The suit split reads 82.37% for 77 with a shared suit and 81.21% without one. 77 does better with a shared suit, by 1.16 points. **77 against 64s by suit overlap, in percent** | Deals | Specific deals | Share of deals | 77 wins | Ties | 64s wins | 77 equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 81.691 | 1.347 | 16.962 | 82.365 | | No shared suit | 12 | 50.00 | 80.574 | 1.265 | 18.161 | 81.207 | ## How often this matchup comes up How often does it happen? 24 of the 1,624,350 ordered deals (0.0015%) are 77 against 64s, 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 $163.58 of it on average and 64s gets $36.42. Over a long run, 1,000 deals split into about 811 for 77, 176 for 64s and 13 tied. ## The same matchup from the other side One page covers both views. From 64s' side the equity is 18.21%, and from 77's side it is 81.79%. ## Keep exploring Try 7s7h against 6d4d 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 6d4d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=7s7h&p2=6d4d) - [77 combos](https://georgelipoker.com/combos/77.md) - [64s combos](https://georgelipoker.com/combos/64s.md) - [77 vs 53s](https://georgelipoker.com/equity/77-vs-53s.md) - [77 vs 43s](https://georgelipoker.com/equity/77-vs-43s.md) - [AQs vs 64s](https://georgelipoker.com/equity/aqs-vs-64s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed All 1,712,304 five-card boards are dealt for every suit pattern among the 24 specific deals of 77 against 64s, and both hands are scored on each. That is a full count, so the percentages are exact. Ties are half a win each, and each board appears once per flop it contains. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [77 vs 53s: preflop equity](https://georgelipoker.com/equity/77-vs-53s.md) - [77 vs 43s: preflop equity](https://georgelipoker.com/equity/77-vs-43s.md) - [AQs vs 64s: preflop equity](https://georgelipoker.com/equity/aqs-vs-64s.md)