--- title: "AKs vs 55: preflop equity" url: "https://georgelipoker.com/equity/aks-vs-55.md" canonical_url: "https://georgelipoker.com/equity/aks-vs-55" last_updated: "2026-10-23" type: "reference" summary: "AKs vs 55 is close to a coin flip before the flop: 48.03% to 51.97% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/aks-vs-qjs.md", "https://georgelipoker.com/equity/aks-vs-k9s.md", "https://georgelipoker.com/equity/77-vs-55.md"] --- # AKs vs 55: preflop equity AKs vs 55 is close to a coin flip before the flop: 48.03% to 51.97% equity, counted exactly over every board, with the split by flop type and suit. In equity, 55 against AKs stands at 51.97% to 48.03%, a gap of 3.94 points. ## AKs against 55: the numbers **Exact preflop results for AKs against 55, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AKs | 47.796 | 0.477 | 51.727 | 48.034 | | 55 | 51.727 | 0.477 | 47.796 | 51.966 | AKs and 55 are a suited hand and a pocket pair, in that order. This is a pair against two overcards, a matchup that stays close because the other hand only needs one of its ranks to appear. That is a slim edge: neither hand is far ahead. Split pots make up 0.48% of the boards, and both equity figures count them as half a win each. Ranked by equity against a random hand, AKs is number 8 of the 169 starting hands and 55 is number 27. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AKs | 19,642,000 | 196,000 | 21,257,000 | | 55 | 21,257,000 | 196,000 | 19,642,000 | 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. **AKs against 55 read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | AKs | 0.924 | 2.092 | 1.933 | 1.082 | | 55 | 1.082 | 1.933 | 2.092 | 0.924 | 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 55's equity moves by 32.02 points, from 46.32% on rainbow flops topped by a ten or better to 78.34% on low rainbow flops (nine high or lower). 55 is the favorite overall but falls behind on rainbow flops topped by a ten or better. **AKs against 55 by flop texture, in percent** | Flop | Share of flops | AKs wins | Ties | 55 wins | AKs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.595 | 53.581 | 0.199 | 46.220 | 53.681 | | Rainbow, nine or lower | 6.314 | 21.214 | 0.900 | 77.886 | 21.664 | | Two-tone | 46.545 | 49.281 | 0.313 | 50.406 | 49.438 | | Monotone | 5.212 | 47.249 | 2.601 | 50.150 | 48.550 | | Paired | 17.334 | 45.445 | 0.519 | 54.036 | 45.705 | 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 67.05%, AKs changes by -19.02 points, and 55, from 60.33%, by -8.36. **AKs and 55 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 | | --- | --- | --- | --- | --- | | AKs, all flops | 48.034 | 67.045 | -19.011 | 0.71644 | | AKs, rainbow, ten or higher | 53.681 | 67.045 | -13.364 | 0.80067 | | AKs, rainbow, nine or lower | 21.664 | 67.045 | -45.381 | 0.32313 | | AKs, two-tone | 49.438 | 67.045 | -17.607 | 0.73739 | | AKs, monotone | 48.550 | 67.045 | -18.495 | 0.72414 | | AKs, paired | 45.705 | 67.045 | -21.340 | 0.68171 | | 55, all flops | 51.966 | 60.325 | -8.359 | 0.86143 | | 55, rainbow, ten or higher | 46.319 | 60.325 | -14.006 | 0.76782 | | 55, rainbow, nine or lower | 78.336 | 60.325 | +18.011 | 1.29857 | | 55, two-tone | 50.562 | 60.325 | -9.763 | 0.83816 | | 55, monotone | 51.450 | 60.325 | -8.875 | 0.85288 | | 55, paired | 54.295 | 60.325 | -6.030 | 0.90004 | ## Does a shared suit matter? Two kinds of deal exist here. In 12 of them the hands share a suit and 55 holds 52.15%. In 12 they do not, and it holds 51.78%. 55 does better with a shared suit, by 0.37 points. **AKs against 55 by suit overlap, in percent** | Deals | Specific deals | Share of deals | AKs wins | Ties | 55 wins | AKs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 47.589 | 0.519 | 51.892 | 47.849 | | No shared suit | 12 | 50.00 | 48.003 | 0.434 | 51.563 | 48.220 | ## How often this matchup comes up Exactly 24 specific deals fit this matchup in one seat order, which is 0.0015% of 1,624,350; both orders together give 48, or 0.0030%. ## A worked example With $100 from each side, the $200 pot is split on average as $103.94 for 55 and $96.06 for AKs; the first side gains $3.94 per all-in and the second gives up $3.94. Think in thousands: about 517 of 1,000 go to 55, about 478 go to AKs, and about 5 are chopped. ## The same matchup from the other side The mirror image, 55 against AKs, is 51.97% to 48.03%, and its address redirects to this page. ## Keep exploring AsKs against 5h5d 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 AsKs against 5h5d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsKs&p2=5h5d) - [AKs combos](https://georgelipoker.com/combos/aks.md) - [55 combos](https://georgelipoker.com/combos/55.md) - [AKs vs QJs](https://georgelipoker.com/equity/aks-vs-qjs.md) - [AKs vs K9s](https://georgelipoker.com/equity/aks-vs-k9s.md) - [77 vs 55](https://georgelipoker.com/equity/77-vs-55.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 24 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [AKs vs QJs: preflop equity](https://georgelipoker.com/equity/aks-vs-qjs.md) - [AKs vs K9s: preflop equity](https://georgelipoker.com/equity/aks-vs-k9s.md) - [77 vs 55: preflop equity](https://georgelipoker.com/equity/77-vs-55.md)