--- title: "A5s vs 54s: preflop equity" url: "https://georgelipoker.com/equity/a5s-vs-54s.md" canonical_url: "https://georgelipoker.com/equity/a5s-vs-54s" last_updated: "2026-10-23" type: "reference" summary: "A5s is a big favorite over 54s before the flop: 69.20% to 30.80% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a5s-vs-64s.md", "https://georgelipoker.com/equity/a5s-vs-53s.md", "https://georgelipoker.com/equity/a6s-vs-54s.md"] --- # A5s vs 54s: preflop equity A5s is a big favorite over 54s before the flop: 69.20% to 30.80% equity, counted exactly over every board, with the split by flop type and suit. The exact count puts A5s at 69.20% and 54s at 30.80% when the two hands see all five board cards. ## A5s against 54s: the numbers **Exact preflop results for A5s against 54s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A5s | 67.982 | 2.444 | 29.574 | 69.204 | | 54s | 29.574 | 2.444 | 67.982 | 30.796 | Two suited hands meet here: A5s against 54s. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up. That is a clear edge, 69.20% to 30.80%, but 54s still wins often enough that one hand proves nothing. Split pots make up 2.44% of the boards, and both equity figures count them as half a win each. Among the 169 starting hands, A5s is number 30 and 54s is number 136 by strength 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 | 13,969,000 | 502,000 | 6,077,000 | | 54s | 6,077,000 | 502,000 | 13,969,000 | 12 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand. **A5s against 54s 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 | 2.247 | 1.471 | 3.381 | 0.445 | | 54s | 0.445 | 3.381 | 1.471 | 2.247 | The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call. ## Who is ahead on which flops If you know the kind of flop that came, the numbers shift: A5s holds 74.21% on paired flops and 54.51% on low rainbow flops (nine high or lower). A5s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **A5s against 54s by flop texture, in percent** | Flop | Share of flops | A5s wins | Ties | 54s wins | A5s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.254 | 72.705 | 1.379 | 25.916 | 73.395 | | Rainbow, nine or lower | 5.654 | 50.798 | 7.413 | 41.789 | 54.505 | | Two-tone | 46.543 | 66.485 | 2.162 | 31.353 | 67.566 | | Monotone | 5.215 | 60.524 | 4.593 | 34.883 | 62.820 | | Paired | 17.334 | 72.973 | 2.483 | 24.544 | 74.214 | A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank. ## Compared with a random hand How much does the opponent matter? Compared with its random-hand 59.92%, A5s changes by +9.28 points, and 54s, from 41.45%, by -10.65. **A5s and 54s 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 | 69.204 | 59.923 | +9.281 | 1.15488 | | A5s, rainbow, ten or higher | 73.395 | 59.923 | +13.472 | 1.22482 | | A5s, rainbow, nine or lower | 54.505 | 59.923 | -5.418 | 0.90958 | | A5s, two-tone | 67.566 | 59.923 | +7.643 | 1.12755 | | A5s, monotone | 62.820 | 59.923 | +2.897 | 1.04835 | | A5s, paired | 74.214 | 59.923 | +14.291 | 1.23849 | | 54s, all flops | 30.796 | 41.453 | -10.657 | 0.74291 | | 54s, rainbow, ten or higher | 26.605 | 41.453 | -14.848 | 0.64181 | | 54s, rainbow, nine or lower | 45.495 | 41.453 | +4.042 | 1.09751 | | 54s, two-tone | 32.434 | 41.453 | -9.019 | 0.78243 | | 54s, monotone | 37.180 | 41.453 | -4.273 | 0.89692 | | 54s, paired | 25.786 | 41.453 | -15.667 | 0.62205 | ## Does a shared suit matter? There is no shared-suit case for this pair, since the cards they would need are already in the other hand. Every deal is a no-shared-suit deal. **A5s against 54s by suit overlap, in percent** | Deals | Specific deals | Share of deals | A5s wins | Ties | 54s wins | A5s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 67.982 | 2.444 | 29.574 | 69.204 | ## How often this matchup comes up Counting specific cards, A5s against 54s appears in 12 of the 1,624,350 ordered heads-up deals (0.0007%), and in 24 when the seats are swapped too (0.0015%). ## A worked example Take a $200 pot built from $100 each. A5s' equity of 69.20% is worth $138.40, a $38.40 edge, and 54s' 30.80% is worth $61.60, which is $38.40 under its stake. Out of 1,000 deals you should see around 680 outright wins for A5s, 296 for 54s, and 24 split pots. ## The same matchup from the other side One page covers both views. From 54s' side the equity is 30.80%, and from A5s' side it is 69.20%. ## Keep exploring Try As5s against 5h4h 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 5h4h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As5s&p2=5h4h) - [A5s combos](https://georgelipoker.com/combos/a5s.md) - [54s combos](https://georgelipoker.com/combos/54s.md) - [A5s vs 64s](https://georgelipoker.com/equity/a5s-vs-64s.md) - [A5s vs 53s](https://georgelipoker.com/equity/a5s-vs-53s.md) - [A6s vs 54s](https://georgelipoker.com/equity/a6s-vs-54s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed This is an exact count with no sampling. For the 12 ways to deal one A5s and one 54s 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 - [A5s vs 64s: preflop equity](https://georgelipoker.com/equity/a5s-vs-64s.md) - [A5s vs 53s: preflop equity](https://georgelipoker.com/equity/a5s-vs-53s.md) - [A6s vs 54s: preflop equity](https://georgelipoker.com/equity/a6s-vs-54s.md)