--- title: "AJo vs KJs: preflop equity" url: "https://georgelipoker.com/equity/ajo-vs-kjs.md" canonical_url: "https://georgelipoker.com/equity/ajo-vs-kjs" last_updated: "2026-10-23" type: "reference" summary: "AJo is a big favorite over KJs before the flop: 70.25% to 29.75% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ajo-vs-a8s.md", "https://georgelipoker.com/equity/ajo-vs-kts.md", "https://georgelipoker.com/equity/kqs-vs-kjs.md"] --- # AJo vs KJs: preflop equity AJo is a big favorite over KJs before the flop: 70.25% to 29.75% equity, counted exactly over every board, with the split by flop type and suit. Over all 1,712,304 boards that can follow this deal, AJo finishes with 70.25% of the pot and KJs with 29.75%. ## AJo against KJs: the numbers **Exact preflop results for AJo against KJs, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AJo | 69.491 | 1.527 | 28.982 | 70.254 | | KJs | 28.982 | 1.527 | 69.491 | 29.746 | One side is an offsuit hand, the other is a suited hand. Because the hands share one rank, the one with the higher kicker is ahead when that rank pairs and the other hand is mostly drawing. A lead of 40.50 points is large but not decisive: KJs still takes about 290 of every 1,000 deals. Ties are part of the picture: 1.53% of boards end in a split pot, and each side counts that as half a win. In the ranking of all 169 starting hands, AJo is number 15 and KJs is number 20. **Boards behind the percentages: 61,642,944 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AJo | 42,836,000 | 941,000 | 17,865,000 | | KJs | 17,865,000 | 941,000 | 42,836,000 | The board total is exact, 36 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **AJo against KJs read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | AJo | 2.362 | 1.439 | 3.450 | 0.423 | | KJs | 0.423 | 3.450 | 1.439 | 2.362 | 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 AJo is strongest on low rainbow flops (nine high or lower) (83.30%) and weakest on monotone flops (65.41%). AJo stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **AJo against KJs by flop texture, in percent** | Flop | Share of flops | AJo wins | Ties | KJs wins | AJo equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.177 | 67.555 | 1.220 | 31.225 | 68.165 | | Rainbow, nine or lower | 7.771 | 82.364 | 1.863 | 15.773 | 83.296 | | Two-tone | 46.527 | 67.755 | 1.269 | 30.976 | 68.390 | | Monotone | 5.192 | 63.974 | 2.863 | 33.163 | 65.406 | | Paired | 17.333 | 72.620 | 2.077 | 25.303 | 73.659 | 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 Each hand has a baseline against a random hand: 63.56% for AJo, 62.57% for KJs. Here the change is +6.69 and -32.82 points. **AJo and KJs 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 | | --- | --- | --- | --- | --- | | AJo, all flops | 70.254 | 63.563 | +6.691 | 1.10527 | | AJo, rainbow, ten or higher | 68.165 | 63.563 | +4.602 | 1.07240 | | AJo, rainbow, nine or lower | 83.296 | 63.563 | +19.733 | 1.31045 | | AJo, two-tone | 68.390 | 63.563 | +4.827 | 1.07594 | | AJo, monotone | 65.406 | 63.563 | +1.843 | 1.02899 | | AJo, paired | 73.659 | 63.563 | +10.096 | 1.15883 | | KJs, all flops | 29.746 | 62.567 | -32.821 | 0.47543 | | KJs, rainbow, ten or higher | 31.835 | 62.567 | -30.732 | 0.50881 | | KJs, rainbow, nine or lower | 16.704 | 62.567 | -45.863 | 0.26698 | | KJs, two-tone | 31.610 | 62.567 | -30.957 | 0.50522 | | KJs, monotone | 34.594 | 62.567 | -27.973 | 0.55291 | | KJs, paired | 26.341 | 62.567 | -36.226 | 0.42100 | ## Does a shared suit matter? Of the deals of this matchup, 12 share a suit (AJo at 71.33%) and 24 do not (69.72%). AJo does better with a shared suit, by 1.61 points. **AJo against KJs by suit overlap, in percent** | Deals | Specific deals | Share of deals | AJo wins | Ties | KJs wins | AJo equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 33.33 | 70.526 | 1.598 | 27.876 | 71.325 | | No shared suit | 24 | 66.67 | 68.973 | 1.491 | 29.536 | 69.719 | ## How often this matchup comes up You will meet this exact matchup 0.0044% of the time in a random heads-up deal: 72 of 1,624,350, counting either seat order. ## A worked example Put $100 each into a $200 pot and deal every board once: AJo averages $140.50 back, ahead of its $100 by $40.50, while KJs averages $59.50, short of its $100 by $40.50. Per 1,000 deals: AJo wins about 695, KJs wins about 290, and about 15 end in a split pot. ## The same matchup from the other side The mirror image, KJs against AJo, is 29.75% to 70.25%, and its address redirects to this page. ## Keep exploring Open the calculator with AsJh against KdJd 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 AsJh against KdJd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsJh&p2=KdJd) - [AJo combos](https://georgelipoker.com/combos/ajo.md) - [KJs combos](https://georgelipoker.com/combos/kjs.md) - [AJo vs A8s](https://georgelipoker.com/equity/ajo-vs-a8s.md) - [AJo vs KTs](https://georgelipoker.com/equity/ajo-vs-kts.md) - [KQs vs KJs](https://georgelipoker.com/equity/kqs-vs-kjs.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed This is an exact count with no sampling. For the 36 ways to deal one AJo and one KJs without reusing a card, grouped by suit pattern, every one of the 1,712,304 possible boards is dealt and both seven-card hands are compared. A tie counts as half a win in the equity column, and each board is counted once under each of its ten three-card flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [AJo vs A8s: preflop equity](https://georgelipoker.com/equity/ajo-vs-a8s.md) - [AJo vs KTs: preflop equity](https://georgelipoker.com/equity/ajo-vs-kts.md) - [KQs vs KJs: preflop equity](https://georgelipoker.com/equity/kqs-vs-kjs.md)