--- title: "A5s vs T9s: preflop equity" url: "https://georgelipoker.com/equity/a5s-vs-t9s.md" canonical_url: "https://georgelipoker.com/equity/a5s-vs-t9s" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, A5s or T9s? A5s leads 54.65% to 45.35% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a5s-vs-33.md", "https://georgelipoker.com/equity/a5s-vs-t8s.md", "https://georgelipoker.com/equity/a6s-vs-t9s.md"] --- # A5s vs T9s: preflop equity Who is ahead, A5s or T9s? A5s leads 54.65% to 45.35% before the flop, counted exactly over every board, with the split by flop type and suit. Before any board card is dealt, A5s holds 54.65% equity against T9s, which leaves T9s with 45.35%. ## A5s against T9s: the numbers **Exact preflop results for A5s against T9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A5s | 54.393 | 0.505 | 45.102 | 54.646 | | T9s | 45.102 | 0.505 | 54.393 | 45.354 | Two suited hands meet here: A5s against T9s. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances. With only 9.30 points between them, the board decides this matchup far more than the cards in hand. Ties are 0.51% of the outcomes here; each tied board gives both hands half the pot. The hand ranking puts A5s at 30 and T9s at 64 out of 169 starting hands. **Boards behind the percentages: 27,396,864 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A5s | 14,902,000 | 138,000 | 12,357,000 | | T9s | 12,357,000 | 138,000 | 14,902,000 | The total is exact: 16 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand. **A5s against T9s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | A5s | 1.205 | 1.838 | 2.217 | 0.830 | | T9s | 0.830 | 2.217 | 1.838 | 1.205 | 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 By flop texture, A5s' equity runs from 51.59% on low rainbow flops (nine high or lower) up to 60.44% on paired flops. A5s stays ahead on all five textures. **A5s against T9s by flop texture, in percent** | Flop | Share of flops | A5s wins | Ties | T9s wins | A5s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.543 | 53.971 | 0.193 | 45.836 | 54.068 | | Rainbow, nine or lower | 6.366 | 51.258 | 0.663 | 48.079 | 51.590 | | Two-tone | 46.727 | 53.319 | 0.265 | 46.416 | 53.452 | | Monotone | 5.273 | 51.105 | 3.427 | 45.468 | 52.818 | | Paired | 17.091 | 60.120 | 0.649 | 39.231 | 60.444 | Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank. ## Compared with a random hand A random hand would give A5s 59.92% and T9s 54.03%. Against each other the change is -5.27 points for A5s and -8.68 for T9s. **A5s and T9s 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 | | --- | --- | --- | --- | --- | | A5s, all flops | 54.646 | 59.923 | -5.277 | 0.91194 | | A5s, rainbow, ten or higher | 54.068 | 59.923 | -5.855 | 0.90229 | | A5s, rainbow, nine or lower | 51.590 | 59.923 | -8.333 | 0.86094 | | A5s, two-tone | 53.452 | 59.923 | -6.471 | 0.89201 | | A5s, monotone | 52.818 | 59.923 | -7.105 | 0.88143 | | A5s, paired | 60.444 | 59.923 | +0.521 | 1.00869 | | T9s, all flops | 45.354 | 54.028 | -8.674 | 0.83945 | | T9s, rainbow, ten or higher | 45.932 | 54.028 | -8.096 | 0.85015 | | T9s, rainbow, nine or lower | 48.410 | 54.028 | -5.618 | 0.89602 | | T9s, two-tone | 46.548 | 54.028 | -7.480 | 0.86155 | | T9s, monotone | 47.182 | 54.028 | -6.846 | 0.87329 | | T9s, paired | 39.556 | 54.028 | -14.472 | 0.73214 | ## Does a shared suit matter? Two kinds of deal exist here. In 4 of them the hands share a suit and A5s holds 56.21%. In 12 they do not, and it holds 54.12%. A5s does better with a shared suit, by 2.09 points. **A5s against T9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | A5s wins | Ties | T9s wins | A5s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 4 | 25.00 | 55.921 | 0.586 | 43.493 | 56.214 | | No shared suit | 12 | 75.00 | 53.884 | 0.478 | 45.638 | 54.123 | ## How often this matchup comes up Counting specific cards, A5s against T9s 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 Try it with money: two players each put in $100 and the whole board runs out every possible way. A5s averages $109.30 from the $200, up $9.30; T9s averages $90.70, down $9.30. Scaled to 1,000 deals, that is roughly 544 wins for A5s, 451 for T9s and 5 chopped pots. ## The same matchup from the other side If you came looking for T9s against A5s, the numbers are the same with the hands swapped: 45.35% and 54.65%. ## Keep exploring Open the calculator with As5s against Th9h 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 As5s against Th9h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As5s&p2=Th9h) - [A5s combos](https://georgelipoker.com/combos/a5s.md) - [T9s combos](https://georgelipoker.com/combos/t9s.md) - [A5s vs 33](https://georgelipoker.com/equity/a5s-vs-33.md) - [A5s vs T8s](https://georgelipoker.com/equity/a5s-vs-t8s.md) - [A6s vs T9s](https://georgelipoker.com/equity/a6s-vs-t9s.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 16 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 - [A5s vs 33: preflop equity](https://georgelipoker.com/equity/a5s-vs-33.md) - [A5s vs T8s: preflop equity](https://georgelipoker.com/equity/a5s-vs-t8s.md) - [A6s vs T9s: preflop equity](https://georgelipoker.com/equity/a6s-vs-t9s.md)