--- title: "QJo vs J9s: preflop equity" url: "https://georgelipoker.com/equity/qjo-vs-j9s.md" canonical_url: "https://georgelipoker.com/equity/qjo-vs-j9s" last_updated: "2026-10-23" type: "reference" summary: "QJo is a big favorite over J9s before the flop: 69.40% to 30.60% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/qjo-vs-jto.md", "https://georgelipoker.com/equity/qjo-vs-t9s.md", "https://georgelipoker.com/equity/k9o-vs-j9s.md"] --- # QJo vs J9s: preflop equity QJo is a big favorite over J9s before the flop: 69.40% to 30.60% equity, counted exactly over every board, with the split by flop type and suit. If QJo and J9s get all the chips in before the flop, QJo owns 69.40% of the pot in the long run and J9s owns 30.60%. ## QJo against J9s: the numbers **Exact preflop results for QJo against J9s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | QJo | 67.525 | 3.751 | 28.724 | 69.400 | | J9s | 28.724 | 3.751 | 67.525 | 30.600 | Here an offsuit hand (QJo) meets a suited hand (J9s). Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up. A lead of 38.80 points is large but not decisive: J9s still takes about 287 of every 1,000 deals. Ties are part of the picture: 3.75% of boards end in a split pot, and each side counts that as half a win. Among the 169 starting hands, QJo is number 39 and J9s is number 55 by strength against a random hand. **Boards behind the percentages: 61,642,944 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | QJo | 41,624,000 | 2,312,000 | 17,706,000 | | J9s | 17,706,000 | 2,312,000 | 41,624,000 | The total is exact: 36 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. **QJo 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) | | --- | --- | --- | --- | --- | | QJo | 2.268 | 1.481 | 3.481 | 0.441 | | J9s | 0.441 | 3.481 | 1.481 | 2.268 | 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 Across the five flop textures QJo's equity moves by 14.21 points, from 60.28% on low rainbow flops (nine high or lower) to 74.49% on rainbow flops topped by a ten or better. QJo stays ahead on all five textures. **QJo against J9s by flop texture, in percent** | Flop | Share of flops | QJo wins | Ties | J9s wins | QJo equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.905 | 72.631 | 3.719 | 23.650 | 74.491 | | Rainbow, nine or lower | 7.042 | 59.748 | 1.065 | 39.187 | 60.280 | | Two-tone | 46.527 | 66.297 | 2.958 | 30.745 | 67.776 | | Monotone | 5.192 | 62.801 | 4.331 | 32.868 | 64.966 | | Paired | 17.334 | 68.354 | 6.840 | 24.806 | 71.774 | Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank. ## Compared with a random hand Relative to a random opponent, QJo changes by +11.26 points (baseline 58.14%) and J9s by -25.06 points (baseline 55.66%). **QJo 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 | | --- | --- | --- | --- | --- | | QJo, all flops | 69.400 | 58.135 | +11.265 | 1.19377 | | QJo, rainbow, ten or higher | 74.491 | 58.135 | +16.356 | 1.28135 | | QJo, rainbow, nine or lower | 60.280 | 58.135 | +2.145 | 1.03690 | | QJo, two-tone | 67.776 | 58.135 | +9.641 | 1.16584 | | QJo, monotone | 64.966 | 58.135 | +6.831 | 1.11750 | | QJo, paired | 71.774 | 58.135 | +13.639 | 1.23461 | | J9s, all flops | 30.600 | 55.662 | -25.062 | 0.54975 | | J9s, rainbow, ten or higher | 25.509 | 55.662 | -30.153 | 0.45828 | | J9s, rainbow, nine or lower | 39.720 | 55.662 | -15.942 | 0.71359 | | J9s, two-tone | 32.224 | 55.662 | -23.438 | 0.57892 | | J9s, monotone | 35.034 | 55.662 | -20.628 | 0.62941 | | J9s, paired | 28.226 | 55.662 | -27.436 | 0.50710 | ## Does a shared suit matter? Of the deals of this matchup, 12 share a suit (QJo at 70.41%) and 24 do not (68.89%). QJo does better with a shared suit, by 1.52 points. **QJo against J9s by suit overlap, in percent** | Deals | Specific deals | Share of deals | QJo wins | Ties | J9s wins | QJo equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 33.33 | 68.485 | 3.858 | 27.657 | 70.414 | | No shared suit | 24 | 66.67 | 67.045 | 3.697 | 29.258 | 68.894 | ## How often this matchup comes up Out of 1,624,350 ways to deal two seats two cards each, 36 are QJo in one seat and J9s in the other (0.0022%); with the seats swapped too, 72 (0.0044%). ## A worked example Take a $200 pot built from $100 each. QJo's equity of 69.40% is worth $138.80, a $38.80 edge, and J9s' 30.60% is worth $61.20, which is $38.80 under its stake. Run 1,000 deals and the tally comes out near 675 for QJo, 287 for J9s and 38 ties. ## The same matchup from the other side J9s versus QJo is this same page seen from the other hand: 30.60% for J9s, 69.40% for QJo. ## Keep exploring Open the calculator with QsJh against Jd9d already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking. - [Open QsJh against Jd9d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=QsJh&p2=Jd9d) - [QJo combos](https://georgelipoker.com/combos/qjo.md) - [J9s combos](https://georgelipoker.com/combos/j9s.md) - [QJo vs JTo](https://georgelipoker.com/equity/qjo-vs-jto.md) - [QJo vs T9s](https://georgelipoker.com/equity/qjo-vs-t9s.md) - [K9o vs J9s](https://georgelipoker.com/equity/k9o-vs-j9s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed The page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 36 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [QJo vs JTo: preflop equity](https://georgelipoker.com/equity/qjo-vs-jto.md) - [QJo vs T9s: preflop equity](https://georgelipoker.com/equity/qjo-vs-t9s.md) - [K9o vs J9s: preflop equity](https://georgelipoker.com/equity/k9o-vs-j9s.md)