--- title: "A9o vs QJs: preflop equity" url: "https://georgelipoker.com/equity/a9o-vs-qjs.md" canonical_url: "https://georgelipoker.com/equity/a9o-vs-qjs" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, A9o or QJs? A9o leads 53.72% to 46.28% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a9o-vs-k9s.md", "https://georgelipoker.com/equity/a9o-vs-a5s.md", "https://georgelipoker.com/equity/kjo-vs-qjs.md"] --- # A9o vs QJs: preflop equity Who is ahead, A9o or QJs? A9o leads 53.72% to 46.28% before the flop, counted exactly over every board, with the split by flop type and suit. Before any board card is dealt, A9o holds 53.72% equity against QJs, which leaves QJs with 46.28%. ## A9o against QJs: the numbers **Exact preflop results for A9o against QJs, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A9o | 53.494 | 0.450 | 46.056 | 53.719 | | QJs | 46.056 | 0.450 | 53.494 | 46.281 | Here an offsuit hand (A9o) meets a suited hand (QJs). The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances. A9o leads by less than 8 points of equity, so the result of any one deal is close to a toss-up. Split pots make up 0.45% of the boards, and both equity figures count them as half a win each. Among the 169 starting hands, A9o is number 25 and QJs is number 28 by strength against a random hand. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A9o | 43,967,000 | 370,000 | 37,854,000 | | QJs | 37,854,000 | 370,000 | 43,967,000 | The board total is exact, 48 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **A9o against QJs 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 | 1.161 | 1.869 | 2.171 | 0.862 | | QJs | 0.862 | 2.171 | 1.869 | 1.161 | 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 A9o prefers low rainbow flops (nine high or lower), where it holds 71.78%, and likes rainbow flops topped by a ten or better least, where it holds 48.83%. Watch for rainbow flops topped by a ten or better: on those flops QJs holds the better equity. **A9o against QJs by flop texture, in percent** | Flop | Share of flops | A9o wins | Ties | QJs wins | A9o equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.988 | 48.770 | 0.116 | 51.114 | 48.828 | | Rainbow, nine or lower | 7.042 | 71.313 | 0.926 | 27.761 | 71.776 | | Two-tone | 46.667 | 51.346 | 0.274 | 48.380 | 51.483 | | Monotone | 5.212 | 50.719 | 2.372 | 46.909 | 51.905 | | Paired | 17.091 | 59.492 | 0.616 | 39.892 | 59.800 | 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 The table below sets each hand against its own random-hand baseline: a change of -7.05 points for A9o, from 60.77%, and -13.98 for QJs, from 60.26%. **A9o and QJs 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 | 53.719 | 60.773 | -7.054 | 0.88393 | | A9o, rainbow, ten or higher | 48.828 | 60.773 | -11.945 | 0.80345 | | A9o, rainbow, nine or lower | 71.776 | 60.773 | +11.003 | 1.18105 | | A9o, two-tone | 51.483 | 60.773 | -9.290 | 0.84714 | | A9o, monotone | 51.905 | 60.773 | -8.868 | 0.85408 | | A9o, paired | 59.800 | 60.773 | -0.973 | 0.98399 | | QJs, all flops | 46.281 | 60.259 | -13.978 | 0.76803 | | QJs, rainbow, ten or higher | 51.172 | 60.259 | -9.087 | 0.84920 | | QJs, rainbow, nine or lower | 28.224 | 60.259 | -32.035 | 0.46838 | | QJs, two-tone | 48.517 | 60.259 | -11.742 | 0.80514 | | QJs, monotone | 48.095 | 60.259 | -12.164 | 0.79814 | | QJs, paired | 40.200 | 60.259 | -20.059 | 0.66712 | ## Does a shared suit matter? Split by suits, the deals give A9o 54.16% when the hands overlap in a suit and 53.28% when they do not. A9o does better with a shared suit, by 0.88 points. **A9o against QJs by suit overlap, in percent** | Deals | Specific deals | Share of deals | A9o wins | Ties | QJs wins | A9o equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 53.913 | 0.491 | 45.596 | 54.158 | | No shared suit | 24 | 50.00 | 53.074 | 0.409 | 46.517 | 53.279 | ## How often this matchup comes up This page stands for 48 specific-card matchups (0.0030% of 1,624,350 ordered deals), or 96 once you count the seats both ways (0.0059%). ## A worked example A $100 all-in from each player makes a $200 pot, and the exact equity says A9o gets $107.44 of it on average and QJs gets $92.56. Out of 1,000 deals you should see around 535 outright wins for A9o, 461 for QJs, and 4 split pots. ## The same matchup from the other side QJs against A9o adds nothing new: it is 46.28% for QJs and 53.72% for A9o, the same figures reversed. ## Keep exploring Try As9h against QdJd 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 QdJd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As9h&p2=QdJd) - [A9o combos](https://georgelipoker.com/combos/a9o.md) - [QJs combos](https://georgelipoker.com/combos/qjs.md) - [A9o vs K9s](https://georgelipoker.com/equity/a9o-vs-k9s.md) - [A9o vs A5s](https://georgelipoker.com/equity/a9o-vs-a5s.md) - [KJo vs QJs](https://georgelipoker.com/equity/kjo-vs-qjs.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed All 1,712,304 five-card boards are dealt for every suit pattern among the 48 specific deals of A9o against QJs, and both hands are scored on each. That is a full count, so the percentages are exact. Ties are half a win each, and each board appears once per flop it contains. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [A9o vs K9s: preflop equity](https://georgelipoker.com/equity/a9o-vs-k9s.md) - [A9o vs A5s: preflop equity](https://georgelipoker.com/equity/a9o-vs-a5s.md) - [KJo vs QJs: preflop equity](https://georgelipoker.com/equity/kjo-vs-qjs.md)