--- title: "JJ vs A8s: preflop equity" url: "https://georgelipoker.com/equity/jj-vs-a8s.md" canonical_url: "https://georgelipoker.com/equity/jj-vs-a8s" last_updated: "2026-10-23" type: "reference" summary: "JJ is a big favorite over A8s before the flop: 68.07% to 31.93% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/jj-vs-kts.md", "https://georgelipoker.com/equity/jj-vs-kqo.md", "https://georgelipoker.com/equity/tt-vs-a8s.md"] --- # JJ vs A8s: preflop equity JJ is a big favorite over A8s before the flop: 68.07% to 31.93% equity, counted exactly over every board, with the split by flop type and suit. Before any board card is dealt, JJ holds 68.07% equity against A8s, which leaves A8s with 31.93%. ## JJ against A8s: the numbers **Exact preflop results for JJ against A8s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | JJ | 67.883 | 0.379 | 31.738 | 68.072 | | A8s | 31.738 | 0.379 | 67.883 | 31.928 | The first hand is a pocket pair; the second is a suited hand. The pair is ahead of one card and behind the other, so the board decides how that plays out. A lead of 36.14 points is large but not decisive: A8s still takes about 317 of every 1,000 deals. A split pot comes up on 0.38% of boards, so the wins and the equity differ by half of that. Ranked by equity against a random hand, JJ is number 4 of the 169 starting hands and A8s is number 21. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | JJ | 27,897,000 | 156,000 | 13,043,000 | | A8s | 13,043,000 | 156,000 | 27,897,000 | Exact total: 24 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. **JJ against A8s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | JJ | 2.132 | 1.473 | 3.151 | 0.469 | | A8s | 0.469 | 3.151 | 1.473 | 2.132 | 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 Break the boards down by their first three cards and JJ is strongest on low rainbow flops (nine high or lower) (76.56%) and weakest on monotone flops (63.49%). JJ stays ahead on all five textures. **JJ against A8s by flop texture, in percent** | Flop | Share of flops | JJ wins | Ties | A8s wins | JJ equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 67.459 | 0.140 | 32.401 | 67.529 | | Rainbow, nine or lower | 7.042 | 76.121 | 0.876 | 23.003 | 76.559 | | Two-tone | 46.545 | 66.161 | 0.285 | 33.554 | 66.303 | | Monotone | 5.212 | 62.301 | 2.383 | 35.316 | 63.492 | | Paired | 17.334 | 71.423 | 0.156 | 28.421 | 71.501 | 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 A random hand would give JJ 77.47% and A8s 61.94%. Against each other the change is -9.40 points for JJ and -30.01 for A8s. **JJ and A8s 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 | | --- | --- | --- | --- | --- | | JJ, all flops | 68.072 | 77.469 | -9.397 | 0.87870 | | JJ, rainbow, ten or higher | 67.529 | 77.469 | -9.940 | 0.87169 | | JJ, rainbow, nine or lower | 76.559 | 77.469 | -0.910 | 0.98825 | | JJ, two-tone | 66.303 | 77.469 | -11.166 | 0.85586 | | JJ, monotone | 63.492 | 77.469 | -13.977 | 0.81958 | | JJ, paired | 71.501 | 77.469 | -5.968 | 0.92296 | | A8s, all flops | 31.928 | 61.944 | -30.016 | 0.51543 | | A8s, rainbow, ten or higher | 32.471 | 61.944 | -29.473 | 0.52420 | | A8s, rainbow, nine or lower | 23.441 | 61.944 | -38.503 | 0.37842 | | A8s, two-tone | 33.697 | 61.944 | -28.247 | 0.54399 | | A8s, monotone | 36.508 | 61.944 | -25.436 | 0.58937 | | A8s, paired | 28.499 | 61.944 | -33.445 | 0.46008 | ## Does a shared suit matter? When the hands share a suit, JJ holds 68.36%; when they do not, it holds 67.79%. JJ does better with a shared suit, by 0.57 points. **JJ against A8s by suit overlap, in percent** | Deals | Specific deals | Share of deals | JJ wins | Ties | A8s wins | JJ equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 68.147 | 0.420 | 31.433 | 68.357 | | No shared suit | 12 | 50.00 | 67.619 | 0.337 | 32.044 | 67.788 | ## How often this matchup comes up Out of 1,624,350 ways to deal two seats two cards each, 24 are JJ in one seat and A8s in the other (0.0015%); with the seats swapped too, 48 (0.0030%). ## A worked example With $100 from each side, the $200 pot is split on average as $136.14 for JJ and $63.86 for A8s; the first side gains $36.14 per all-in and the second gives up $36.14. Run 1,000 deals and the tally comes out near 679 for JJ, 317 for A8s and 4 ties. ## The same matchup from the other side If you came looking for A8s against JJ, the numbers are the same with the hands swapped: 31.93% and 68.07%. ## Keep exploring The calculator link fills in JsJh against Ad8d, a deal where the two hands share no suit. Change any card to test your own hand. The neighboring matchups below swap one of the two hands for one of similar strength. - [Open JsJh against Ad8d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=JsJh&p2=Ad8d) - [JJ combos](https://georgelipoker.com/combos/jj.md) - [A8s combos](https://georgelipoker.com/combos/a8s.md) - [JJ vs KTs](https://georgelipoker.com/equity/jj-vs-kts.md) - [JJ vs KQo](https://georgelipoker.com/equity/jj-vs-kqo.md) - [TT vs A8s](https://georgelipoker.com/equity/tt-vs-a8s.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 24 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 - [JJ vs KTs: preflop equity](https://georgelipoker.com/equity/jj-vs-kts.md) - [JJ vs KQo: preflop equity](https://georgelipoker.com/equity/jj-vs-kqo.md) - [TT vs A8s: preflop equity](https://georgelipoker.com/equity/tt-vs-a8s.md)