--- title: "AQs vs J9s: preflop equity" url: "https://georgelipoker.com/equity/aqs-vs-j9s.md" canonical_url: "https://georgelipoker.com/equity/aqs-vs-j9s" last_updated: "2026-10-23" type: "reference" summary: "AQs is a big favorite over J9s before the flop: 63.40% to 36.60% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/aqs-vs-jto.md", "https://georgelipoker.com/equity/aqs-vs-t9s.md", "https://georgelipoker.com/equity/ajs-vs-j9s.md"] --- # AQs vs J9s: preflop equity AQs is a big favorite over J9s before the flop: 63.40% to 36.60% equity, counted exactly over every board, with the split by flop type and suit. Averaged over every possible board, AQs is ahead of J9s by 26.80 points of equity, 63.40% to 36.60%. ## AQs against J9s: the numbers **Exact preflop results for AQs against J9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AQs | 63.151 | 0.496 | 36.353 | 63.399 | | J9s | 36.353 | 0.496 | 63.151 | 36.601 | Here suited hands face each other, AQs on one side and J9s on the other. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits. That is a modest edge, the kind that shows up over many hands and is easy to miss in one. Ties are 0.50% of the outcomes here; each tied board gives both hands half the pot. In the ranking of all 169 starting hands, AQs is number 10 and J9s is number 55. **Boards behind the percentages: 27,396,864 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AQs | 17,301,000 | 136,000 | 9,960,000 | | J9s | 9,960,000 | 136,000 | 17,301,000 | The board total is exact, 16 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **AQs against J9s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | AQs | 1.732 | 1.584 | 2.751 | 0.577 | | J9s | 0.577 | 2.751 | 1.584 | 1.732 | 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 Break the boards down by their first three cards and AQs is strongest on rainbow flops topped by a ten or better (65.71%) and weakest on low rainbow flops (nine high or lower) (56.99%). AQs stays ahead on all five textures. **AQs against J9s by flop texture, in percent** | Flop | Share of flops | AQs wins | Ties | J9s wins | AQs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 65.650 | 0.113 | 34.237 | 65.707 | | Rainbow, nine or lower | 7.042 | 56.540 | 0.899 | 42.561 | 56.990 | | Two-tone | 46.727 | 62.562 | 0.258 | 37.180 | 62.691 | | Monotone | 5.273 | 58.633 | 3.408 | 37.959 | 60.337 | | Paired | 17.091 | 65.392 | 0.616 | 33.992 | 65.700 | 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 Each hand has a baseline against a random hand: 66.21% for AQs, 55.66% for J9s. Here the change is -2.81 and -19.06 points. **AQs and J9s 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 | | --- | --- | --- | --- | --- | | AQs, all flops | 63.399 | 66.209 | -2.810 | 0.95756 | | AQs, rainbow, ten or higher | 65.707 | 66.209 | -0.502 | 0.99242 | | AQs, rainbow, nine or lower | 56.990 | 66.209 | -9.219 | 0.86076 | | AQs, two-tone | 62.691 | 66.209 | -3.518 | 0.94687 | | AQs, monotone | 60.337 | 66.209 | -5.872 | 0.91131 | | AQs, paired | 65.700 | 66.209 | -0.509 | 0.99231 | | J9s, all flops | 36.601 | 55.662 | -19.061 | 0.65756 | | J9s, rainbow, ten or higher | 34.293 | 55.662 | -21.369 | 0.61609 | | J9s, rainbow, nine or lower | 43.010 | 55.662 | -12.652 | 0.77270 | | J9s, two-tone | 37.309 | 55.662 | -18.353 | 0.67028 | | J9s, monotone | 39.663 | 55.662 | -15.999 | 0.71257 | | J9s, paired | 34.300 | 55.662 | -21.362 | 0.61622 | ## Does a shared suit matter? When the hands share a suit, AQs holds 65.81%; when they do not, it holds 62.59%. AQs does better with a shared suit, by 3.22 points. **AQs against J9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | AQs wins | Ties | J9s wins | AQs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 4 | 25.00 | 65.528 | 0.573 | 33.899 | 65.814 | | No shared suit | 12 | 75.00 | 62.359 | 0.470 | 37.171 | 62.594 | ## How often this matchup comes up Exactly 16 specific deals fit this matchup in one seat order, which is 0.0010% of 1,624,350; both orders together give 32, or 0.0020%. ## A worked example A $100 all-in from each player makes a $200 pot, and the exact equity says AQs gets $126.80 of it on average and J9s gets $73.20. Out of 1,000 deals you should see around 631 outright wins for AQs, 364 for J9s, and 5 split pots. ## The same matchup from the other side Swap the hands and you get J9s with 36.60% against AQs with 63.40%. We keep one page per matchup, with the better-ranked hand first. ## Keep exploring Try AsQs against Jh9h 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 AsQs against Jh9h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsQs&p2=Jh9h) - [AQs combos](https://georgelipoker.com/combos/aqs.md) - [J9s combos](https://georgelipoker.com/combos/j9s.md) - [AQs vs JTo](https://georgelipoker.com/equity/aqs-vs-jto.md) - [AQs vs T9s](https://georgelipoker.com/equity/aqs-vs-t9s.md) - [AJs vs J9s](https://georgelipoker.com/equity/ajs-vs-j9s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Method: exact enumeration. The 16 specific deals are grouped by suit pattern, each is run against all 1,712,304 boards, and both seven-card hands are scored. Equity adds half of every tie, and flop textures are tallied over the ten flops inside each board. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [AQs vs JTo: preflop equity](https://georgelipoker.com/equity/aqs-vs-jto.md) - [AQs vs T9s: preflop equity](https://georgelipoker.com/equity/aqs-vs-t9s.md) - [AJs vs J9s: preflop equity](https://georgelipoker.com/equity/ajs-vs-j9s.md)