--- title: "T8s vs 64s: preflop equity" url: "https://georgelipoker.com/equity/t8s-vs-64s.md" canonical_url: "https://georgelipoker.com/equity/t8s-vs-64s" last_updated: "2026-10-23" type: "reference" summary: "T8s is a big favorite over 64s before the flop: 63.77% to 36.23% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/t8s-vs-53s.md", "https://georgelipoker.com/equity/t8s-vs-43s.md", "https://georgelipoker.com/equity/t9o-vs-64s.md"] --- # T8s vs 64s: preflop equity T8s is a big favorite over 64s before the flop: 63.77% to 36.23% equity, counted exactly over every board, with the split by flop type and suit. Over all 1,712,304 boards that can follow this deal, T8s finishes with 63.77% of the pot and 64s with 36.23%. ## T8s against 64s: the numbers **Exact preflop results for T8s against 64s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | T8s | 62.844 | 1.844 | 35.312 | 63.766 | | 64s | 35.312 | 1.844 | 62.844 | 36.234 | Each side holds one of the suited hands: T8s and 64s. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits. That is a modest edge, the kind that shows up over many hands and is easy to miss in one. Split pots make up 1.84% of the boards, and both equity figures count them as half a win each. Place 73 of 169 belongs to T8s and place 138 belongs to 64s in the ranking against a random hand. **Boards behind the percentages: 27,396,864 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | T8s | 17,217,000 | 505,000 | 9,674,000 | | 64s | 9,674,000 | 505,000 | 17,217,000 | The board total is exact, 16 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **T8s 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) | | --- | --- | --- | --- | --- | | T8s | 1.760 | 1.591 | 2.832 | 0.568 | | 64s | 0.568 | 2.832 | 1.591 | 1.760 | 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 Across the five flop textures T8s' equity moves by 17.78 points, from 49.98% on low rainbow flops (nine high or lower) to 67.76% on rainbow flops topped by a ten or better. On low rainbow flops (nine high or lower) the numbers flip and 64s is the one ahead. **T8s against 64s by flop texture, in percent** | Flop | Share of flops | T8s wins | Ties | 64s wins | T8s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.220 | 67.142 | 1.234 | 31.624 | 67.759 | | Rainbow, nine or lower | 5.689 | 49.756 | 0.442 | 49.802 | 49.977 | | Two-tone | 46.727 | 62.884 | 0.989 | 36.127 | 63.379 | | Monotone | 5.273 | 58.985 | 3.938 | 37.077 | 60.954 | | Paired | 17.091 | 61.942 | 4.902 | 33.156 | 64.393 | Flop types: rainbow means three different suits, two-tone means one suit twice, monotone means one suit three times, paired means a repeated rank. ## Compared with a random hand A random hand would give T8s 52.33% and 64s 41.33%. Against each other the change is +11.44 points for T8s and -5.10 for 64s. **T8s 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 | | --- | --- | --- | --- | --- | | T8s, all flops | 63.766 | 52.334 | +11.432 | 1.21844 | | T8s, rainbow, ten or higher | 67.759 | 52.334 | +15.425 | 1.29474 | | T8s, rainbow, nine or lower | 49.977 | 52.334 | -2.357 | 0.95496 | | T8s, two-tone | 63.379 | 52.334 | +11.045 | 1.21105 | | T8s, monotone | 60.954 | 52.334 | +8.620 | 1.16471 | | T8s, paired | 64.393 | 52.334 | +12.059 | 1.23042 | | 64s, all flops | 36.234 | 41.333 | -5.099 | 0.87664 | | 64s, rainbow, ten or higher | 32.241 | 41.333 | -9.092 | 0.78003 | | 64s, rainbow, nine or lower | 50.023 | 41.333 | +8.690 | 1.21024 | | 64s, two-tone | 36.621 | 41.333 | -4.712 | 0.88600 | | 64s, monotone | 39.046 | 41.333 | -2.287 | 0.94467 | | 64s, paired | 35.607 | 41.333 | -5.726 | 0.86147 | ## Does a shared suit matter? When the hands share a suit, T8s holds 66.21%; when they do not, it holds 62.95%. T8s does better with a shared suit, by 3.26 points. **T8s against 64s by suit overlap, in percent** | Deals | Specific deals | Share of deals | T8s wins | Ties | 64s wins | T8s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 4 | 25.00 | 65.209 | 1.997 | 32.794 | 66.208 | | No shared suit | 12 | 75.00 | 62.056 | 1.793 | 36.151 | 62.953 | ## How often this matchup comes up Counting specific cards, T8s against 64s appears in 16 of the 1,624,350 ordered heads-up deals (0.0010%), and in 32 when the seats are swapped too (0.0020%). ## A worked example Say each player puts $100 in before the flop, making a $200 pot. On average T8s takes back $127.54 of it, which is $27.54 more than it put in, and 64s takes back $72.46, $27.54 less than it put in. Think in thousands: about 629 of 1,000 go to T8s, about 353 go to 64s, and about 18 are chopped. ## The same matchup from the other side The reversed view, 64s against T8s, shows 36.23% for 64s and 63.77% for T8s. It is the same count, so it redirects here. ## Keep exploring Try Ts8s against 6h4h 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 Ts8s against 6h4h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=Ts8s&p2=6h4h) - [T8s combos](https://georgelipoker.com/combos/t8s.md) - [64s combos](https://georgelipoker.com/combos/64s.md) - [T8s vs 53s](https://georgelipoker.com/equity/t8s-vs-53s.md) - [T8s vs 43s](https://georgelipoker.com/equity/t8s-vs-43s.md) - [T9o vs 64s](https://georgelipoker.com/equity/t9o-vs-64s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 16 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 - [T8s vs 53s: preflop equity](https://georgelipoker.com/equity/t8s-vs-53s.md) - [T8s vs 43s: preflop equity](https://georgelipoker.com/equity/t8s-vs-43s.md) - [T9o vs 64s: preflop equity](https://georgelipoker.com/equity/t9o-vs-64s.md)