--- title: "AA vs T9s: preflop equity" url: "https://georgelipoker.com/equity/aa-vs-t9s.md" canonical_url: "https://georgelipoker.com/equity/aa-vs-t9s" last_updated: "2026-10-23" type: "reference" summary: "AA is a big favorite over T9s before the flop: 77.80% to 22.20% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/aa-vs-33.md", "https://georgelipoker.com/equity/aa-vs-t8s.md", "https://georgelipoker.com/equity/kk-vs-t9s.md"] --- # AA vs T9s: preflop equity AA is a big favorite over T9s before the flop: 77.80% to 22.20% equity, counted exactly over every board, with the split by flop type and suit. Dealt all in against each other, AA takes 77.80% of the pot on average and T9s takes the other 22.20%. ## AA against T9s: the numbers **Exact preflop results for AA against T9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AA | 77.615 | 0.362 | 22.023 | 77.796 | | T9s | 22.023 | 0.362 | 77.615 | 22.204 | AA, a pocket pair, plays T9s, 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. AA is well ahead, and T9s needs a specific kind of board to catch up. Ties are 0.36% of the outcomes here; each tied board gives both hands half the pot. By strength against a random hand, AA holds place 1 of 169 and T9s holds place 64. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AA | 31,896,000 | 149,000 | 9,050,000 | | T9s | 9,050,000 | 149,000 | 31,896,000 | The total is exact: 24 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. **AA 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) | | --- | --- | --- | --- | --- | | AA | 3.504 | 1.288 | 4.541 | 0.285 | | T9s | 0.285 | 4.541 | 1.288 | 3.504 | 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 If you know the kind of flop that came, the numbers shift: AA holds 82.25% on paired flops and 72.79% on monotone flops. AA stays ahead on all five textures. **AA against T9s by flop texture, in percent** | Flop | Share of flops | AA wins | Ties | T9s wins | AA equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 78.633 | 0.187 | 21.180 | 78.727 | | Rainbow, nine or lower | 7.042 | 80.142 | 0.757 | 19.101 | 80.520 | | Two-tone | 46.545 | 75.662 | 0.296 | 24.042 | 75.810 | | Monotone | 5.212 | 71.588 | 2.397 | 26.015 | 72.786 | | Paired | 17.334 | 82.242 | 0.007 | 17.751 | 82.245 | Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank. ## Compared with a random hand Start from the random-hand figures, 85.20% for AA and 54.03% for T9s. This opponent changes them by -7.40 and -31.83 points. **AA 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 | | --- | --- | --- | --- | --- | | AA, all flops | 77.796 | 85.204 | -7.408 | 0.91306 | | AA, rainbow, ten or higher | 78.727 | 85.204 | -6.477 | 0.92398 | | AA, rainbow, nine or lower | 80.520 | 85.204 | -4.684 | 0.94503 | | AA, two-tone | 75.810 | 85.204 | -9.394 | 0.88975 | | AA, monotone | 72.786 | 85.204 | -12.418 | 0.85426 | | AA, paired | 82.245 | 85.204 | -2.959 | 0.96527 | | T9s, all flops | 22.204 | 54.028 | -31.824 | 0.41097 | | T9s, rainbow, ten or higher | 21.273 | 54.028 | -32.755 | 0.39374 | | T9s, rainbow, nine or lower | 19.480 | 54.028 | -34.548 | 0.36055 | | T9s, two-tone | 24.190 | 54.028 | -29.838 | 0.44773 | | T9s, monotone | 27.214 | 54.028 | -26.814 | 0.50370 | | T9s, paired | 17.755 | 54.028 | -36.273 | 0.32863 | ## Does a shared suit matter? Split by suits, the deals give AA 78.36% when the hands overlap in a suit and 77.24% when they do not. AA does better with a shared suit, by 1.12 points. **AA against T9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | AA wins | Ties | T9s wins | AA equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 78.155 | 0.404 | 21.441 | 78.357 | | No shared suit | 12 | 50.00 | 77.075 | 0.320 | 22.605 | 77.235 | ## How often this matchup comes up AA against T9s is made up of 24 specific-card matchups in one seat order, 0.0015% of the 1,624,350 ordered deals, and 48 counting both seat orders, 0.0030%. ## A worked example Worked example: both players commit $100, so $200 sits in the middle. Over every board, AA's average share is $155.60 (a gain of $55.60) and T9s' is $44.40 (a loss of $55.60). Per 1,000 deals: AA wins about 776, T9s wins about 220, and about 4 end in a split pot. ## The same matchup from the other side If you came looking for T9s against AA, the numbers are the same with the hands swapped: 22.20% and 77.80%. ## Keep exploring Try AsAh against Td9d 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 AsAh against Td9d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsAh&p2=Td9d) - [AA combos](https://georgelipoker.com/combos/aa.md) - [T9s combos](https://georgelipoker.com/combos/t9s.md) - [AA vs 33](https://georgelipoker.com/equity/aa-vs-33.md) - [AA vs T8s](https://georgelipoker.com/equity/aa-vs-t8s.md) - [KK vs T9s](https://georgelipoker.com/equity/kk-vs-t9s.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 - [AA vs 33: preflop equity](https://georgelipoker.com/equity/aa-vs-33.md) - [AA vs T8s: preflop equity](https://georgelipoker.com/equity/aa-vs-t8s.md) - [KK vs T9s: preflop equity](https://georgelipoker.com/equity/kk-vs-t9s.md)