--- title: "T9s vs T8s: preflop equity" url: "https://georgelipoker.com/equity/t9s-vs-t8s.md" canonical_url: "https://georgelipoker.com/equity/t9s-vs-t8s" last_updated: "2026-10-23" type: "reference" summary: "T9s is a big favorite over T8s before the flop: 67.01% to 32.99% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/t9s-vs-t9o.md", "https://georgelipoker.com/equity/t9s-vs-98s.md", "https://georgelipoker.com/equity/33-vs-t8s.md"] --- # T9s vs T8s: preflop equity T9s is a big favorite over T8s before the flop: 67.01% to 32.99% equity, counted exactly over every board, with the split by flop type and suit. If T9s and T8s get all the chips in before the flop, T9s owns 67.01% of the pot in the long run and T8s owns 32.99%. ## T9s against T8s: the numbers **Exact preflop results for T9s against T8s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | T9s | 60.011 | 13.994 | 25.995 | 67.008 | | T8s | 25.995 | 13.994 | 60.011 | 32.992 | The matchup is suited hands on both sides, T9s against T8s. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up. A lead of 34.02 points is large but not decisive: T8s still takes about 260 of every 1,000 deals. Ties are 13.99% of the outcomes here; each tied board gives both hands half the pot. Place 64 of 169 belongs to T9s and place 73 belongs to T8s in the ranking against a random hand. **Boards behind the percentages: 20,547,648 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | T9s | 12,331,000 | 2,875,000 | 5,341,000 | | T8s | 5,341,000 | 2,875,000 | 12,331,000 | The board total is exact, 12 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **T9s against T8s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | T9s | 2.031 | 1.666 | 3.847 | 0.492 | | T8s | 0.492 | 3.847 | 1.666 | 2.031 | 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 By flop texture, T9s' equity runs from 62.12% on monotone flops up to 70.35% on rainbow flops topped by a ten or better. T9s stays ahead on all five textures. **T9s against T8s by flop texture, in percent** | Flop | Share of flops | T9s wins | Ties | T8s wins | T9s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.526 | 63.412 | 13.874 | 22.714 | 70.349 | | Rainbow, nine or lower | 6.383 | 66.198 | 3.326 | 30.476 | 67.861 | | Two-tone | 46.543 | 61.943 | 10.478 | 27.579 | 67.182 | | Monotone | 5.215 | 56.856 | 10.522 | 32.622 | 62.117 | | Paired | 17.333 | 48.685 | 28.576 | 22.739 | 62.973 | 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 T9s 54.03% and T8s 52.33%. Against each other the change is +12.98 points for T9s and -19.34 for T8s. **T9s and T8s 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 | | --- | --- | --- | --- | --- | | T9s, all flops | 67.008 | 54.028 | +12.980 | 1.24025 | | T9s, rainbow, ten or higher | 70.349 | 54.028 | +16.321 | 1.30208 | | T9s, rainbow, nine or lower | 67.861 | 54.028 | +13.833 | 1.25603 | | T9s, two-tone | 67.182 | 54.028 | +13.154 | 1.24347 | | T9s, monotone | 62.117 | 54.028 | +8.089 | 1.14972 | | T9s, paired | 62.973 | 54.028 | +8.945 | 1.16556 | | T8s, all flops | 32.992 | 52.334 | -19.342 | 0.63041 | | T8s, rainbow, ten or higher | 29.651 | 52.334 | -22.683 | 0.56657 | | T8s, rainbow, nine or lower | 32.139 | 52.334 | -20.195 | 0.61411 | | T8s, two-tone | 32.818 | 52.334 | -19.516 | 0.62709 | | T8s, monotone | 37.883 | 52.334 | -14.451 | 0.72387 | | T8s, paired | 37.027 | 52.334 | -15.307 | 0.70751 | ## Does a shared suit matter? Every legal deal of T9s against T8s leaves the hands with no suit in common, so the suit split does not apply here. **T9s against T8s by suit overlap, in percent** | Deals | Specific deals | Share of deals | T9s wins | Ties | T8s wins | T9s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 60.011 | 13.994 | 25.995 | 67.008 | ## How often this matchup comes up This page stands for 12 specific-card matchups (0.0007% of 1,624,350 ordered deals), or 24 once you count the seats both ways (0.0015%). ## A worked example Put $100 each into a $200 pot and deal every board once: T9s averages $134.02 back, ahead of its $100 by $34.02, while T8s averages $65.98, short of its $100 by $34.02. A thousand deals look like this: T9s takes 600, T8s takes 260, 140 are ties. ## The same matchup from the other side Swap the hands and you get T8s with 32.99% against T9s with 67.01%. We keep one page per matchup, with the better-ranked hand first. ## Keep exploring Ts9s against Th8h is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength. - [Open Ts9s against Th8h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=Ts9s&p2=Th8h) - [T9s combos](https://georgelipoker.com/combos/t9s.md) - [T8s combos](https://georgelipoker.com/combos/t8s.md) - [T9s vs T9o](https://georgelipoker.com/equity/t9s-vs-t9o.md) - [T9s vs 98s](https://georgelipoker.com/equity/t9s-vs-98s.md) - [33 vs T8s](https://georgelipoker.com/equity/33-vs-t8s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 12 specific deals, with both seven-card hands compared each time. Equity gives half a win for a tie. For the flop rows, a board is counted once under each of the ten flops inside it. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [T9s vs T9o: preflop equity](https://georgelipoker.com/equity/t9s-vs-t9o.md) - [T9s vs 98s: preflop equity](https://georgelipoker.com/equity/t9s-vs-98s.md) - [33 vs T8s: preflop equity](https://georgelipoker.com/equity/33-vs-t8s.md)