--- title: "AJs vs T9o: preflop equity" url: "https://georgelipoker.com/equity/ajs-vs-t9o.md" canonical_url: "https://georgelipoker.com/equity/ajs-vs-t9o" last_updated: "2026-10-23" type: "reference" summary: "AJs is a big favorite over T9o before the flop: 65.20% to 34.80% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ajs-vs-98s.md", "https://georgelipoker.com/equity/ajs-vs-22.md", "https://georgelipoker.com/equity/ako-vs-t9o.md"] --- # AJs vs T9o: preflop equity AJs is a big favorite over T9o before the flop: 65.20% to 34.80% equity, counted exactly over every board, with the split by flop type and suit. Counting every board, the equity split is 65.20% for AJs and 34.80% for T9o, so AJs leads by 30.40 points. ## AJs against T9o: the numbers **Exact preflop results for AJs against T9o, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AJs | 64.985 | 0.437 | 34.578 | 65.204 | | T9o | 34.578 | 0.437 | 64.985 | 34.796 | The matchup pits a suited hand against an offsuit hand. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances. A lead of 30.40 points is large but not decisive: T9o still takes about 346 of every 1,000 deals. A split pot comes up on 0.44% of boards, so the wins and the equity differ by half of that. For context, AJs sits at number 11 of 169 starting hands and T9o at number 78 when each is run against a random hand. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AJs | 53,412,000 | 359,000 | 28,420,000 | | T9o | 28,420,000 | 359,000 | 53,412,000 | The total is exact: 48 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. **AJs against T9o read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | AJs | 1.874 | 1.539 | 2.892 | 0.534 | | T9o | 0.534 | 2.892 | 1.539 | 1.874 | 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 Break the boards down by their first three cards and AJs is strongest on paired flops (68.01%) and weakest on low rainbow flops (nine high or lower) (55.70%). AJs stays ahead on all five textures. **AJs against T9o by flop texture, in percent** | Flop | Share of flops | AJs wins | Ties | T9o wins | AJs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.988 | 66.580 | 0.152 | 33.268 | 66.656 | | Rainbow, nine or lower | 7.042 | 55.339 | 0.716 | 43.945 | 55.697 | | Two-tone | 46.667 | 65.203 | 0.258 | 34.539 | 65.332 | | Monotone | 5.212 | 59.853 | 2.360 | 37.787 | 61.033 | | Paired | 17.091 | 67.693 | 0.624 | 31.683 | 68.005 | 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 Start from the random-hand figures, 65.39% for AJs and 51.53% for T9o. This opponent changes them by -0.19 and -16.73 points. **AJs and T9o 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 | | --- | --- | --- | --- | --- | | AJs, all flops | 65.204 | 65.393 | -0.189 | 0.99711 | | AJs, rainbow, ten or higher | 66.656 | 65.393 | +1.263 | 1.01931 | | AJs, rainbow, nine or lower | 55.697 | 65.393 | -9.696 | 0.85173 | | AJs, two-tone | 65.332 | 65.393 | -0.061 | 0.99907 | | AJs, monotone | 61.033 | 65.393 | -4.360 | 0.93333 | | AJs, paired | 68.005 | 65.393 | +2.612 | 1.03994 | | T9o, all flops | 34.796 | 51.532 | -16.736 | 0.67523 | | T9o, rainbow, ten or higher | 33.344 | 51.532 | -18.188 | 0.64705 | | T9o, rainbow, nine or lower | 44.303 | 51.532 | -7.229 | 0.85972 | | T9o, two-tone | 34.668 | 51.532 | -16.864 | 0.67275 | | T9o, monotone | 38.967 | 51.532 | -12.565 | 0.75617 | | T9o, paired | 31.995 | 51.532 | -19.537 | 0.62088 | ## Does a shared suit matter? Of the deals of this matchup, 24 share a suit (AJs at 65.00%) and 24 do not (65.41%). AJs does better with no shared suit, by 0.41 points. **AJs against T9o by suit overlap, in percent** | Deals | Specific deals | Share of deals | AJs wins | Ties | T9o wins | AJs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 64.760 | 0.477 | 34.763 | 64.998 | | No shared suit | 24 | 50.00 | 65.211 | 0.396 | 34.393 | 65.409 | ## How often this matchup comes up How often does it happen? 48 of the 1,624,350 ordered deals (0.0030%) are AJs against T9o, and 96 (0.0059%) if either hand may sit in either seat. ## A worked example Worked example: both players commit $100, so $200 sits in the middle. Over every board, AJs' average share is $130.40 (a gain of $30.40) and T9o's is $69.60 (a loss of $30.40). Scaled to 1,000 deals, that is roughly 650 wins for AJs, 346 for T9o and 4 chopped pots. ## The same matchup from the other side One page covers both views. From T9o's side the equity is 34.80%, and from AJs' side it is 65.20%. ## Keep exploring The calculator link fills in AsJs against Th9d, a deal where the two hands share no suit. Change any card to test your own hand. The neighboring matchups below swap one of the two hands for one of similar strength. - [Open AsJs against Th9d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsJs&p2=Th9d) - [AJs combos](https://georgelipoker.com/combos/ajs.md) - [T9o combos](https://georgelipoker.com/combos/t9o.md) - [AJs vs 98s](https://georgelipoker.com/equity/ajs-vs-98s.md) - [AJs vs 22](https://georgelipoker.com/equity/ajs-vs-22.md) - [AKo vs T9o](https://georgelipoker.com/equity/ako-vs-t9o.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Nothing here is simulated. The 48 deals of AJs against T9o fall into a few suit patterns, each dealt against all 1,712,304 boards, with both best five-card hands compared on every board. Ties give each hand half a win, and the flop rows count a board under each of its ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [AJs vs 98s: preflop equity](https://georgelipoker.com/equity/ajs-vs-98s.md) - [AJs vs 22: preflop equity](https://georgelipoker.com/equity/ajs-vs-22.md) - [AKo vs T9o: preflop equity](https://georgelipoker.com/equity/ako-vs-t9o.md)