--- title: "A5s vs 65s: preflop equity" url: "https://georgelipoker.com/equity/a5s-vs-65s.md" canonical_url: "https://georgelipoker.com/equity/a5s-vs-65s" last_updated: "2026-10-23" type: "reference" summary: "A5s is a big favorite over 65s before the flop: 66.98% to 33.02% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a5s-vs-54s.md", "https://georgelipoker.com/equity/a5s-vs-64s.md", "https://georgelipoker.com/equity/a6s-vs-65s.md"] --- # A5s vs 65s: preflop equity A5s is a big favorite over 65s before the flop: 66.98% to 33.02% equity, counted exactly over every board, with the split by flop type and suit. Dealt all in against each other, A5s takes 66.98% of the pot on average and 65s takes the other 33.02%. ## A5s against 65s: the numbers **Exact preflop results for A5s against 65s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A5s | 65.952 | 2.061 | 31.987 | 66.983 | | 65s | 31.987 | 2.061 | 65.952 | 33.017 | The matchup is suited hands on both sides, A5s against 65s. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up. A5s is well ahead, and 65s needs a specific kind of board to catch up. Split pots make up 2.06% of the boards, and both equity figures count them as half a win each. For context, A5s sits at number 30 of 169 starting hands and 65s at number 128 when each is run against a random hand. **Boards behind the percentages: 20,547,648 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A5s | 13,552,000 | 423,000 | 6,573,000 | | 65s | 6,573,000 | 423,000 | 13,552,000 | Exact total: 12 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. **A5s against 65s 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 | 2.029 | 1.516 | 3.126 | 0.493 | | 65s | 0.493 | 3.126 | 1.516 | 2.029 | 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 A5s is strongest on rainbow flops topped by a ten or better (72.30%) and weakest on low rainbow flops (nine high or lower) (46.12%). On low rainbow flops (nine high or lower) the numbers flip and 65s is the one ahead. **A5s against 65s by flop texture, in percent** | Flop | Share of flops | A5s wins | Ties | 65s wins | A5s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.254 | 71.791 | 1.020 | 27.189 | 72.301 | | Rainbow, nine or lower | 5.654 | 42.889 | 6.452 | 50.659 | 46.115 | | Two-tone | 46.543 | 64.539 | 1.762 | 33.699 | 65.420 | | Monotone | 5.215 | 59.054 | 4.240 | 36.706 | 61.174 | | Paired | 17.334 | 70.838 | 2.291 | 26.871 | 71.983 | 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 +7.06 points, and 65s, from 43.13%, by -10.11. **A5s and 65s 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 | 66.983 | 59.923 | +7.060 | 1.11782 | | A5s, rainbow, ten or higher | 72.301 | 59.923 | +12.378 | 1.20657 | | A5s, rainbow, nine or lower | 46.115 | 59.923 | -13.808 | 0.76957 | | A5s, two-tone | 65.420 | 59.923 | +5.497 | 1.09173 | | A5s, monotone | 61.174 | 59.923 | +1.251 | 1.02088 | | A5s, paired | 71.983 | 59.923 | +12.060 | 1.20126 | | 65s, all flops | 33.017 | 43.133 | -10.116 | 0.76547 | | 65s, rainbow, ten or higher | 27.699 | 43.133 | -15.434 | 0.64218 | | 65s, rainbow, nine or lower | 53.885 | 43.133 | +10.752 | 1.24928 | | 65s, two-tone | 34.580 | 43.133 | -8.553 | 0.80171 | | 65s, monotone | 38.826 | 43.133 | -4.307 | 0.90015 | | 65s, paired | 28.017 | 43.133 | -15.116 | 0.64955 | ## Does a shared suit matter? Every legal deal of A5s against 65s leaves the hands with no suit in common, so the suit split does not apply here. **A5s against 65s by suit overlap, in percent** | Deals | Specific deals | Share of deals | A5s wins | Ties | 65s wins | A5s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 65.952 | 2.061 | 31.987 | 66.983 | ## How often this matchup comes up This page stands for 12 specific-card matchups (0.0007% of 1,624,350 ordered deals), or 24 once you count the seats both ways (0.0015%). ## A worked example Say each player puts $100 in before the flop, making a $200 pot. On average A5s takes back $133.96 of it, which is $33.96 more than it put in, and 65s takes back $66.04, $33.96 less than it put in. Run 1,000 deals and the tally comes out near 659 for A5s, 320 for 65s and 21 ties. ## The same matchup from the other side 65s against A5s adds nothing new: it is 33.02% for 65s and 66.98% for A5s, the same figures reversed. ## Keep exploring Try As5s against 6h5h 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 As5s against 6h5h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As5s&p2=6h5h) - [A5s combos](https://georgelipoker.com/combos/a5s.md) - [65s combos](https://georgelipoker.com/combos/65s.md) - [A5s vs 54s](https://georgelipoker.com/equity/a5s-vs-54s.md) - [A5s vs 64s](https://georgelipoker.com/equity/a5s-vs-64s.md) - [A6s vs 65s](https://georgelipoker.com/equity/a6s-vs-65s.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 12 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 - [A5s vs 54s: preflop equity](https://georgelipoker.com/equity/a5s-vs-54s.md) - [A5s vs 64s: preflop equity](https://georgelipoker.com/equity/a5s-vs-64s.md) - [A6s vs 65s: preflop equity](https://georgelipoker.com/equity/a6s-vs-65s.md)