--- title: "AJo vs T9o: preflop equity" url: "https://georgelipoker.com/equity/ajo-vs-t9o.md" canonical_url: "https://georgelipoker.com/equity/ajo-vs-t9o" last_updated: "2026-10-23" type: "reference" summary: "AJo is a big favorite over T9o before the flop: 63.59% to 36.41% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ajo-vs-98s.md", "https://georgelipoker.com/equity/ajo-vs-22.md", "https://georgelipoker.com/equity/kqs-vs-t9o.md"] --- # AJo vs T9o: preflop equity AJo is a big favorite over T9o before the flop: 63.59% to 36.41% equity, counted exactly over every board, with the split by flop type and suit. Averaged over every possible board, AJo is ahead of T9o by 27.18 points of equity, 63.59% to 36.41%. ## AJo against T9o: the numbers **Exact preflop results for AJo against T9o, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AJo | 63.379 | 0.413 | 36.208 | 63.586 | | T9o | 36.208 | 0.413 | 63.379 | 36.414 | Here offsuit hands face each other, AJo on one side and T9o on the other. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other. That is a modest edge, the kind that shows up over many hands and is easy to miss in one. Ties are 0.41% of the outcomes here; each tied board gives both hands half the pot. Among the 169 starting hands, AJo is number 15 and T9o is number 78 by strength against a random hand. **Boards behind the percentages: 246,571,776 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AJo | 156,275,000 | 1,018,000 | 89,279,000 | | T9o | 89,279,000 | 1,018,000 | 156,275,000 | Exact total: 144 deals times 1,712,304 boards. The other three counts come from the five-decimal percentages and are rounded to the nearest thousand, so read them as approximate. **AJo 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) | | --- | --- | --- | --- | --- | | AJo | 1.746 | 1.578 | 2.762 | 0.573 | | T9o | 0.573 | 2.762 | 1.578 | 1.746 | 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 If you know the kind of flop that came, the numbers shift: AJo holds 66.61% on paired flops and 53.94% on low rainbow flops (nine high or lower). AJo stays ahead on all five textures. **AJo against T9o by flop texture, in percent** | Flop | Share of flops | AJo wins | Ties | T9o wins | AJo equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.110 | 65.511 | 0.157 | 34.332 | 65.589 | | Rainbow, nine or lower | 7.042 | 53.562 | 0.746 | 45.692 | 53.935 | | Two-tone | 46.606 | 62.850 | 0.278 | 36.872 | 62.989 | | Monotone | 5.151 | 61.930 | 1.673 | 36.397 | 62.766 | | Paired | 17.091 | 66.301 | 0.624 | 33.075 | 66.613 | A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank. ## Compared with a random hand Each hand has a baseline against a random hand: 63.56% for AJo, 51.53% for T9o. Here the change is +0.03 and -15.12 points. **AJo 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 | | --- | --- | --- | --- | --- | | AJo, all flops | 63.586 | 63.563 | +0.023 | 1.00036 | | AJo, rainbow, ten or higher | 65.589 | 63.563 | +2.026 | 1.03187 | | AJo, rainbow, nine or lower | 53.935 | 63.563 | -9.628 | 0.84853 | | AJo, two-tone | 62.989 | 63.563 | -0.574 | 0.99097 | | AJo, monotone | 62.766 | 63.563 | -0.797 | 0.98746 | | AJo, paired | 66.613 | 63.563 | +3.050 | 1.04798 | | T9o, all flops | 36.414 | 51.532 | -15.118 | 0.70663 | | T9o, rainbow, ten or higher | 34.411 | 51.532 | -17.121 | 0.66776 | | T9o, rainbow, nine or lower | 46.065 | 51.532 | -5.467 | 0.89391 | | T9o, two-tone | 37.011 | 51.532 | -14.521 | 0.71821 | | T9o, monotone | 37.234 | 51.532 | -14.298 | 0.72254 | | T9o, paired | 33.387 | 51.532 | -18.145 | 0.64789 | ## Does a shared suit matter? Does suit overlap move the numbers? AJo has 63.69% when the hands share a suit and 63.07% when they do not. AJo does better with a shared suit, by 0.62 points. **AJo against T9o by suit overlap, in percent** | Deals | Specific deals | Share of deals | AJo wins | Ties | T9o wins | AJo equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 120 | 83.33 | 63.475 | 0.428 | 36.097 | 63.689 | | No shared suit | 24 | 16.67 | 62.905 | 0.334 | 36.761 | 63.072 | ## How often this matchup comes up This page stands for 144 specific-card matchups (0.0089% of 1,624,350 ordered deals), or 288 once you count the seats both ways (0.0177%). ## A worked example A $100 all-in from each player makes a $200 pot, and the exact equity says AJo gets $127.18 of it on average and T9o gets $72.82. In 1,000 deals of exactly this matchup, expect about 634 won outright by AJo, about 362 won outright by T9o and about 4 split. ## The same matchup from the other side The mirror image, T9o against AJo, is 36.41% to 63.59%, and its address redirects to this page. ## Keep exploring The calculator link fills in AsJh against Td9c, 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 AsJh against Td9c in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsJh&p2=Td9c) - [AJo combos](https://georgelipoker.com/combos/ajo.md) - [T9o combos](https://georgelipoker.com/combos/t9o.md) - [AJo vs 98s](https://georgelipoker.com/equity/ajo-vs-98s.md) - [AJo vs 22](https://georgelipoker.com/equity/ajo-vs-22.md) - [KQs vs T9o](https://georgelipoker.com/equity/kqs-vs-t9o.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 144 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 - [AJo vs 98s: preflop equity](https://georgelipoker.com/equity/ajo-vs-98s.md) - [AJo vs 22: preflop equity](https://georgelipoker.com/equity/ajo-vs-22.md) - [KQs vs T9o: preflop equity](https://georgelipoker.com/equity/kqs-vs-t9o.md)