--- title: "A9o vs 33: preflop equity" url: "https://georgelipoker.com/equity/a9o-vs-33.md" canonical_url: "https://georgelipoker.com/equity/a9o-vs-33" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, A9o or 33? 33 leads 53.57% to 46.43% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a9o-vs-t8s.md", "https://georgelipoker.com/equity/a9o-vs-t9o.md", "https://georgelipoker.com/equity/kjo-vs-33.md"] --- # A9o vs 33: preflop equity Who is ahead, A9o or 33? 33 leads 53.57% to 46.43% before the flop, counted exactly over every board, with the split by flop type and suit. If 33 and A9o get all the chips in before the flop, 33 owns 53.57% of the pot in the long run and A9o owns 46.43%. ## A9o against 33: the numbers **Exact preflop results for A9o against 33, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A9o | 46.170 | 0.514 | 53.316 | 46.427 | | 33 | 53.316 | 0.514 | 46.170 | 53.573 | A9o is an offsuit hand and 33 is a pocket pair. This is a pair against two overcards, a matchup that stays close because the other hand only needs one of its ranks to appear. This is close to even money, with 33 a little ahead. A split pot comes up on 0.51% of boards, so the wins and the equity differ by half of that. Among the 169 starting hands, A9o is number 25 and 33 is number 66 by strength against a random hand. **Boards behind the percentages: 123,285,888 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A9o | 56,921,000 | 634,000 | 65,731,000 | | 33 | 65,731,000 | 634,000 | 56,921,000 | Exact total: 72 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. **A9o against 33 read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | A9o | 0.867 | 2.166 | 1.876 | 1.154 | | 33 | 1.154 | 1.876 | 2.166 | 0.867 | The final column gives the least the pot must offer for each unit called for a call to break even at this equity. ## Who is ahead on which flops Across the five flop textures 33's equity moves by 9.29 points, from 50.71% on monotone flops to 60.00% on low rainbow flops (nine high or lower). 33 stays ahead on all five textures. **A9o against 33 by flop texture, in percent** | Flop | Share of flops | A9o wins | Ties | 33 wins | A9o equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.341 | 47.218 | 0.252 | 52.530 | 47.344 | | Rainbow, nine or lower | 5.689 | 39.547 | 0.897 | 59.556 | 39.996 | | Two-tone | 46.485 | 46.169 | 0.356 | 53.475 | 46.347 | | Monotone | 5.151 | 48.172 | 2.244 | 49.584 | 49.294 | | Paired | 17.334 | 46.220 | 0.681 | 53.099 | 46.561 | 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 Against one random hand instead, A9o holds 60.77% and 33 holds 53.69%. Facing each other changes that by -14.34 points for A9o and -0.12 points for 33. **A9o and 33 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 | | --- | --- | --- | --- | --- | | A9o, all flops | 46.427 | 60.773 | -14.346 | 0.76394 | | A9o, rainbow, ten or higher | 47.344 | 60.773 | -13.429 | 0.77903 | | A9o, rainbow, nine or lower | 39.996 | 60.773 | -20.777 | 0.65812 | | A9o, two-tone | 46.347 | 60.773 | -14.426 | 0.76262 | | A9o, monotone | 49.294 | 60.773 | -11.479 | 0.81112 | | A9o, paired | 46.561 | 60.773 | -14.212 | 0.76615 | | 33, all flops | 53.573 | 53.693 | -0.120 | 0.99777 | | 33, rainbow, ten or higher | 52.656 | 53.693 | -1.037 | 0.98069 | | 33, rainbow, nine or lower | 60.004 | 53.693 | +6.311 | 1.11754 | | 33, two-tone | 53.653 | 53.693 | -0.040 | 0.99926 | | 33, monotone | 50.706 | 53.693 | -2.987 | 0.94437 | | 33, paired | 53.439 | 53.693 | -0.254 | 0.99527 | ## Does a shared suit matter? Of the deals of this matchup, 60 share a suit (33 at 53.49%) and 12 do not (53.97%). 33 does better with no shared suit, by 0.48 points. **A9o against 33 by suit overlap, in percent** | Deals | Specific deals | Share of deals | A9o wins | Ties | 33 wins | A9o equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 60 | 83.33 | 46.243 | 0.525 | 53.232 | 46.506 | | No shared suit | 12 | 16.67 | 45.803 | 0.460 | 53.737 | 46.033 | ## How often this matchup comes up Exactly 72 specific deals fit this matchup in one seat order, which is 0.0044% of 1,624,350; both orders together give 144, or 0.0089%. ## A worked example A $100 all-in from each player makes a $200 pot, and the exact equity says 33 gets $107.14 of it on average and A9o gets $92.86. Scaled to 1,000 deals, that is roughly 533 wins for 33, 462 for A9o and 5 chopped pots. ## The same matchup from the other side 33 versus A9o is this same page seen from the other hand: 53.57% for 33, 46.43% for A9o. ## Keep exploring Try As9h against 3d3c 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 As9h against 3d3c in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As9h&p2=3d3c) - [A9o combos](https://georgelipoker.com/combos/a9o.md) - [33 combos](https://georgelipoker.com/combos/33.md) - [A9o vs T8s](https://georgelipoker.com/equity/a9o-vs-t8s.md) - [A9o vs T9o](https://georgelipoker.com/equity/a9o-vs-t9o.md) - [KJo vs 33](https://georgelipoker.com/equity/kjo-vs-33.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 72 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 - [A9o vs T8s: preflop equity](https://georgelipoker.com/equity/a9o-vs-t8s.md) - [A9o vs T9o: preflop equity](https://georgelipoker.com/equity/a9o-vs-t9o.md) - [KJo vs 33: preflop equity](https://georgelipoker.com/equity/kjo-vs-33.md)