--- title: "A5s vs 87s: preflop equity" url: "https://georgelipoker.com/equity/a5s-vs-87s.md" canonical_url: "https://georgelipoker.com/equity/a5s-vs-87s" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, A5s or 87s? A5s leads 55.81% to 44.19% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a5s-vs-86s.md", "https://georgelipoker.com/equity/a5s-vs-76s.md", "https://georgelipoker.com/equity/a6s-vs-87s.md"] --- # A5s vs 87s: preflop equity Who is ahead, A5s or 87s? A5s leads 55.81% to 44.19% before the flop, counted exactly over every board, with the split by flop type and suit. Dealt all in against each other, A5s takes 55.81% of the pot on average and 87s takes the other 44.19%. ## A5s against 87s: the numbers **Exact preflop results for A5s against 87s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A5s | 55.560 | 0.495 | 43.945 | 55.808 | | 87s | 43.945 | 0.495 | 55.560 | 44.192 | Two suited hands meet here: A5s against 87s. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits. That is a modest edge, the kind that shows up over many hands and is easy to miss in one. 0.50% of boards are ties, so the equity of each hand is its win rate plus half of that. Place 30 of 169 belongs to A5s and place 100 belongs to 87s in the ranking against a random hand. **Boards behind the percentages: 27,396,864 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A5s | 15,222,000 | 136,000 | 12,040,000 | | 87s | 12,040,000 | 136,000 | 15,222,000 | The board total is exact, 16 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **A5s against 87s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | A5s | 1.263 | 1.800 | 2.276 | 0.792 | | 87s | 0.792 | 2.276 | 1.800 | 1.263 | 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 Across the five flop textures A5s' equity moves by 22.19 points, from 39.28% on low rainbow flops (nine high or lower) to 61.47% on paired flops. On low rainbow flops (nine high or lower) the numbers flip and 87s is the one ahead. **A5s against 87s by flop texture, in percent** | Flop | Share of flops | A5s wins | Ties | 87s wins | A5s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.220 | 58.311 | 0.221 | 41.468 | 58.422 | | Rainbow, nine or lower | 5.689 | 39.037 | 0.491 | 60.472 | 39.282 | | Two-tone | 46.727 | 54.467 | 0.250 | 45.283 | 54.592 | | Monotone | 5.273 | 51.860 | 3.422 | 44.718 | 53.571 | | Paired | 17.091 | 61.135 | 0.665 | 38.200 | 61.467 | Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank. ## Compared with a random hand How much does the opponent matter? Compared with its random-hand 59.92%, A5s changes by -4.11 points, and 87s, from 47.94%, by -3.75. **A5s and 87s 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 | | --- | --- | --- | --- | --- | | A5s, all flops | 55.808 | 59.923 | -4.115 | 0.93133 | | A5s, rainbow, ten or higher | 58.422 | 59.923 | -1.501 | 0.97495 | | A5s, rainbow, nine or lower | 39.282 | 59.923 | -20.641 | 0.65554 | | A5s, two-tone | 54.592 | 59.923 | -5.331 | 0.91104 | | A5s, monotone | 53.571 | 59.923 | -6.352 | 0.89400 | | A5s, paired | 61.467 | 59.923 | +1.544 | 1.02577 | | 87s, all flops | 44.192 | 47.936 | -3.744 | 0.92190 | | 87s, rainbow, ten or higher | 41.578 | 47.936 | -6.358 | 0.86736 | | 87s, rainbow, nine or lower | 60.718 | 47.936 | +12.782 | 1.26665 | | 87s, two-tone | 45.408 | 47.936 | -2.528 | 0.94726 | | 87s, monotone | 46.429 | 47.936 | -1.507 | 0.96856 | | 87s, paired | 38.533 | 47.936 | -9.403 | 0.80384 | ## Does a shared suit matter? Does suit overlap move the numbers? A5s has 57.55% when the hands share a suit and 55.23% when they do not. A5s does better with a shared suit, by 2.32 points. **A5s against 87s by suit overlap, in percent** | Deals | Specific deals | Share of deals | A5s wins | Ties | 87s wins | A5s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 4 | 25.00 | 57.263 | 0.573 | 42.164 | 57.549 | | No shared suit | 12 | 75.00 | 54.993 | 0.469 | 44.538 | 55.228 | ## How often this matchup comes up You will meet this exact matchup 0.0020% of the time in a random heads-up deal: 32 of 1,624,350, counting either seat order. ## A worked example Take a $200 pot built from $100 each. A5s' equity of 55.81% is worth $111.62, a $11.62 edge, and 87s' 44.19% is worth $88.38, which is $11.62 under its stake. Out of 1,000 deals you should see around 556 outright wins for A5s, 439 for 87s, and 5 split pots. ## The same matchup from the other side Read it from the other side: 87s against A5s is the same matchup with the numbers swapped, so 87s holds 44.19% and A5s holds 55.81%. That address sends you back to this page. ## Keep exploring As5s against 8h7h is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength. - [Open As5s against 8h7h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As5s&p2=8h7h) - [A5s combos](https://georgelipoker.com/combos/a5s.md) - [87s combos](https://georgelipoker.com/combos/87s.md) - [A5s vs 86s](https://georgelipoker.com/equity/a5s-vs-86s.md) - [A5s vs 76s](https://georgelipoker.com/equity/a5s-vs-76s.md) - [A6s vs 87s](https://georgelipoker.com/equity/a6s-vs-87s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Nothing here is simulated. The 16 deals of A5s against 87s fall into a few suit patterns, each dealt against all 1,712,304 boards, with both best five-card hands compared on every board. Ties give each hand half a win, and the flop rows count a board under each of its ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [A5s vs 86s: preflop equity](https://georgelipoker.com/equity/a5s-vs-86s.md) - [A5s vs 76s: preflop equity](https://georgelipoker.com/equity/a5s-vs-76s.md) - [A6s vs 87s: preflop equity](https://georgelipoker.com/equity/a6s-vs-87s.md)