--- title: "A4s vs QJo: preflop equity" url: "https://georgelipoker.com/equity/a4s-vs-qjo.md" canonical_url: "https://georgelipoker.com/equity/a4s-vs-qjo" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, A4s or QJo? A4s leads 58.65% to 41.35% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a4s-vs-k9o.md", "https://georgelipoker.com/equity/a4s-vs-q9s.md", "https://georgelipoker.com/equity/a3s-vs-qjo.md"] --- # A4s vs QJo: preflop equity Who is ahead, A4s or QJo? A4s leads 58.65% to 41.35% before the flop, counted exactly over every board, with the split by flop type and suit. Over all 1,712,304 boards that can follow this deal, A4s finishes with 58.65% of the pot and QJo with 41.35%. ## A4s against QJo: the numbers **Exact preflop results for A4s against QJo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A4s | 58.408 | 0.483 | 41.109 | 58.649 | | QJo | 41.109 | 0.483 | 58.408 | 41.351 | We compare a suited hand with an offsuit hand. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits. A 17.30 point lead is real, and QJo still takes about 411 of every 1,000 deals outright. Ties are 0.48% of the outcomes here; each tied board gives both hands half the pot. A4s ranks number 35 of 169 starting hands, and QJo ranks number 39, by equity against a random hand. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A4s | 48,006,000 | 397,000 | 33,788,000 | | QJo | 33,788,000 | 397,000 | 48,006,000 | Exact total: 48 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. **A4s against QJo read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | A4s | 1.418 | 1.712 | 2.433 | 0.705 | | QJo | 0.705 | 2.433 | 1.712 | 1.418 | 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 A4s' equity moves by 25.14 points, from 50.87% on rainbow flops topped by a ten or better to 76.01% on low rainbow flops (nine high or lower). A4s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **A4s against QJo by flop texture, in percent** | Flop | Share of flops | A4s wins | Ties | QJo wins | A4s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.988 | 50.812 | 0.119 | 49.069 | 50.872 | | Rainbow, nine or lower | 7.042 | 75.472 | 1.074 | 23.454 | 76.009 | | Two-tone | 46.667 | 58.130 | 0.311 | 41.559 | 58.285 | | Monotone | 5.212 | 54.407 | 2.402 | 43.191 | 55.608 | | Paired | 17.091 | 64.014 | 0.637 | 35.349 | 64.332 | 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 The table below sets each hand against its own random-hand baseline: a change of -0.38 points for A4s, from 59.03%, and -16.79 for QJo, from 58.14%. **A4s and QJo 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 | | --- | --- | --- | --- | --- | | A4s, all flops | 58.649 | 59.034 | -0.385 | 0.99348 | | A4s, rainbow, ten or higher | 50.872 | 59.034 | -8.162 | 0.86174 | | A4s, rainbow, nine or lower | 76.009 | 59.034 | +16.975 | 1.28755 | | A4s, two-tone | 58.285 | 59.034 | -0.749 | 0.98731 | | A4s, monotone | 55.608 | 59.034 | -3.426 | 0.94197 | | A4s, paired | 64.332 | 59.034 | +5.298 | 1.08974 | | QJo, all flops | 41.351 | 58.135 | -16.784 | 0.71129 | | QJo, rainbow, ten or higher | 49.128 | 58.135 | -9.007 | 0.84507 | | QJo, rainbow, nine or lower | 23.991 | 58.135 | -34.144 | 0.41268 | | QJo, two-tone | 41.715 | 58.135 | -16.420 | 0.71755 | | QJo, monotone | 44.392 | 58.135 | -13.743 | 0.76360 | | QJo, paired | 35.668 | 58.135 | -22.467 | 0.61354 | ## Does a shared suit matter? The suit split reads 58.30% for A4s with a shared suit and 59.00% without one. A4s does better with no shared suit, by 0.70 points. **A4s against QJo by suit overlap, in percent** | Deals | Specific deals | Share of deals | A4s wins | Ties | QJo wins | A4s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 58.040 | 0.525 | 41.435 | 58.302 | | No shared suit | 24 | 50.00 | 58.775 | 0.442 | 40.783 | 58.996 | ## 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 A4s gets $117.30 of it on average and QJo gets $82.70. Out of 1,000 deals you should see around 584 outright wins for A4s, 411 for QJo, and 5 split pots. ## The same matchup from the other side The reversed view, QJo against A4s, shows 41.35% for QJo and 58.65% for A4s. It is the same count, so it redirects here. ## Keep exploring Try As4s against QhJd 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 As4s against QhJd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As4s&p2=QhJd) - [A4s combos](https://georgelipoker.com/combos/a4s.md) - [QJo combos](https://georgelipoker.com/combos/qjo.md) - [A4s vs K9o](https://georgelipoker.com/equity/a4s-vs-k9o.md) - [A4s vs Q9s](https://georgelipoker.com/equity/a4s-vs-q9s.md) - [A3s vs QJo](https://georgelipoker.com/equity/a3s-vs-qjo.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 48 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 - [A4s vs K9o: preflop equity](https://georgelipoker.com/equity/a4s-vs-k9o.md) - [A4s vs Q9s: preflop equity](https://georgelipoker.com/equity/a4s-vs-q9s.md) - [A3s vs QJo: preflop equity](https://georgelipoker.com/equity/a3s-vs-qjo.md)