--- title: "A8s vs KJo: preflop equity" url: "https://georgelipoker.com/equity/a8s-vs-kjo.md" canonical_url: "https://georgelipoker.com/equity/a8s-vs-kjo" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, A8s or KJo? A8s leads 59.68% to 40.32% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a8s-vs-55.md", "https://georgelipoker.com/equity/a8s-vs-qjs.md", "https://georgelipoker.com/equity/kts-vs-kjo.md"] --- # A8s vs KJo: preflop equity Who is ahead, A8s or KJo? A8s leads 59.68% to 40.32% before the flop, counted exactly over every board, with the split by flop type and suit. Counting every board, the equity split is 59.68% for A8s and 40.32% for KJo, so A8s leads by 19.36 points. ## A8s against KJo: the numbers **Exact preflop results for A8s against KJo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A8s | 59.456 | 0.449 | 40.095 | 59.680 | | KJo | 40.095 | 0.449 | 59.456 | 40.320 | A8s is a suited hand and KJo is an offsuit hand. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances. The lead is steady rather than large, and the flop still has plenty of say in who wins. About 0.45% of boards chop the pot, which is why equity sits slightly above the win figure for both hands. In the ranking of all 169 starting hands, A8s is number 21 and KJo is number 26. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A8s | 48,867,000 | 369,000 | 32,954,000 | | KJo | 32,954,000 | 369,000 | 48,867,000 | 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. **A8s against KJo read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | A8s | 1.480 | 1.682 | 2.494 | 0.676 | | KJo | 0.676 | 2.494 | 1.682 | 1.480 | In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity. ## Who is ahead on which flops Across the five flop textures A8s' equity moves by 25.05 points, from 52.04% on rainbow flops topped by a ten or better to 77.09% on low rainbow flops (nine high or lower). A8s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **A8s against KJo by flop texture, in percent** | Flop | Share of flops | A8s wins | Ties | KJo wins | A8s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.988 | 51.979 | 0.126 | 47.895 | 52.042 | | Rainbow, nine or lower | 7.042 | 76.646 | 0.882 | 22.472 | 77.087 | | Two-tone | 46.667 | 59.200 | 0.274 | 40.526 | 59.337 | | Monotone | 5.212 | 55.170 | 2.373 | 42.457 | 56.356 | | Paired | 17.091 | 64.874 | 0.616 | 34.510 | 65.182 | 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 How much does the opponent matter? Compared with its random-hand 61.94%, A8s changes by -2.26 points, and KJo, from 60.57%, by -20.25. **A8s and KJo 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 | | --- | --- | --- | --- | --- | | A8s, all flops | 59.680 | 61.944 | -2.264 | 0.96345 | | A8s, rainbow, ten or higher | 52.042 | 61.944 | -9.902 | 0.84015 | | A8s, rainbow, nine or lower | 77.087 | 61.944 | +15.143 | 1.24446 | | A8s, two-tone | 59.337 | 61.944 | -2.607 | 0.95791 | | A8s, monotone | 56.356 | 61.944 | -5.588 | 0.90979 | | A8s, paired | 65.182 | 61.944 | +3.238 | 1.05227 | | KJo, all flops | 40.320 | 60.569 | -20.249 | 0.66569 | | KJo, rainbow, ten or higher | 47.958 | 60.569 | -12.611 | 0.79179 | | KJo, rainbow, nine or lower | 22.913 | 60.569 | -37.656 | 0.37830 | | KJo, two-tone | 40.663 | 60.569 | -19.906 | 0.67135 | | KJo, monotone | 43.644 | 60.569 | -16.925 | 0.72057 | | KJo, paired | 34.818 | 60.569 | -25.751 | 0.57485 | ## Does a shared suit matter? Suit overlap shows up in the numbers. With a suit in common A8s has 59.34% equity, and with none in common it has 60.02%. A8s does better with no shared suit, by 0.68 points. **A8s against KJo by suit overlap, in percent** | Deals | Specific deals | Share of deals | A8s wins | Ties | KJo wins | A8s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 59.094 | 0.489 | 40.417 | 59.338 | | No shared suit | 24 | 50.00 | 59.818 | 0.409 | 39.773 | 60.023 | ## How often this matchup comes up A8s against KJo is made up of 48 specific-card matchups in one seat order, 0.0030% of the 1,624,350 ordered deals, and 96 counting both seat orders, 0.0059%. ## A worked example Say each player puts $100 in before the flop, making a $200 pot. On average A8s takes back $119.36 of it, which is $19.36 more than it put in, and KJo takes back $80.64, $19.36 less than it put in. Out of 1,000 deals you should see around 595 outright wins for A8s, 401 for KJo, and 4 split pots. ## The same matchup from the other side If you came looking for KJo against A8s, the numbers are the same with the hands swapped: 40.32% and 59.68%. ## Keep exploring Try As8s against KhJd 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 As8s against KhJd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As8s&p2=KhJd) - [A8s combos](https://georgelipoker.com/combos/a8s.md) - [KJo combos](https://georgelipoker.com/combos/kjo.md) - [A8s vs 55](https://georgelipoker.com/equity/a8s-vs-55.md) - [A8s vs QJs](https://georgelipoker.com/equity/a8s-vs-qjs.md) - [KTs vs KJo](https://georgelipoker.com/equity/kts-vs-kjo.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 A8s against KJo, 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 - [A8s vs 55: preflop equity](https://georgelipoker.com/equity/a8s-vs-55.md) - [A8s vs QJs: preflop equity](https://georgelipoker.com/equity/a8s-vs-qjs.md) - [KTs vs KJo: preflop equity](https://georgelipoker.com/equity/kts-vs-kjo.md)