--- title: "AJs vs A5s: preflop equity" url: "https://georgelipoker.com/equity/ajs-vs-a5s.md" canonical_url: "https://georgelipoker.com/equity/ajs-vs-a5s" last_updated: "2026-10-23" type: "reference" summary: "AJs is a big favorite over A5s before the flop: 68.44% to 31.56% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ajs-vs-a6s.md", "https://georgelipoker.com/equity/ajs-vs-kto.md", "https://georgelipoker.com/equity/ako-vs-a5s.md"] --- # AJs vs A5s: preflop equity AJs is a big favorite over A5s before the flop: 68.44% to 31.56% equity, counted exactly over every board, with the split by flop type and suit. Counting every board, the equity split is 68.44% for AJs and 31.56% for A5s, so AJs leads by 36.88 points. ## AJs against A5s: the numbers **Exact preflop results for AJs against A5s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AJs | 64.834 | 7.212 | 27.954 | 68.440 | | A5s | 27.954 | 7.212 | 64.834 | 31.560 | Both hands are suited hands: AJs and A5s. 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, 68.44% to 31.56%, but A5s still wins often enough that one hand proves nothing. Ties are part of the picture: 7.21% of boards end in a split pot, and each side counts that as half a win. Ranked by equity against a random hand, AJs is number 11 of the 169 starting hands and A5s is number 30. **Boards behind the percentages: 20,547,648 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AJs | 13,322,000 | 1,482,000 | 5,744,000 | | A5s | 5,744,000 | 1,482,000 | 13,322,000 | The total is exact: 12 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand. **AJs against A5s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | AJs | 2.169 | 1.542 | 3.577 | 0.461 | | A5s | 0.461 | 3.577 | 1.542 | 2.169 | 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 The flop changes the picture. AJs does best on rainbow flops topped by a ten or better, at 75.33%, and worst on low rainbow flops (nine high or lower), at 54.34%. AJs stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **AJs against A5s by flop texture, in percent** | Flop | Share of flops | AJs wins | Ties | A5s wins | AJs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 72.585 | 5.480 | 21.935 | 75.325 | | Rainbow, nine or lower | 7.042 | 52.356 | 3.961 | 43.683 | 54.337 | | Two-tone | 46.543 | 65.611 | 4.684 | 29.705 | 67.953 | | Monotone | 5.215 | 59.745 | 6.347 | 33.908 | 62.919 | | Paired | 17.333 | 58.678 | 17.968 | 23.354 | 67.662 | 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 Start from the random-hand figures, 65.39% for AJs and 59.92% for A5s. This opponent changes them by +3.05 and -28.36 points. **AJs and A5s 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 | | --- | --- | --- | --- | --- | | AJs, all flops | 68.440 | 65.393 | +3.047 | 1.04660 | | AJs, rainbow, ten or higher | 75.325 | 65.393 | +9.932 | 1.15188 | | AJs, rainbow, nine or lower | 54.337 | 65.393 | -11.056 | 0.83093 | | AJs, two-tone | 67.953 | 65.393 | +2.560 | 1.03915 | | AJs, monotone | 62.919 | 65.393 | -2.474 | 0.96217 | | AJs, paired | 67.662 | 65.393 | +2.269 | 1.03470 | | A5s, all flops | 31.560 | 59.923 | -28.363 | 0.52668 | | A5s, rainbow, ten or higher | 24.675 | 59.923 | -35.248 | 0.41178 | | A5s, rainbow, nine or lower | 45.663 | 59.923 | -14.260 | 0.76203 | | A5s, two-tone | 32.047 | 59.923 | -27.876 | 0.53480 | | A5s, monotone | 37.081 | 59.923 | -22.842 | 0.61881 | | A5s, paired | 32.338 | 59.923 | -27.585 | 0.53966 | ## 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. **AJs against A5s by suit overlap, in percent** | Deals | Specific deals | Share of deals | AJs wins | Ties | A5s wins | AJs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 64.834 | 7.212 | 27.954 | 68.440 | ## How often this matchup comes up Exactly 12 specific deals fit this matchup in one seat order, which is 0.0007% of 1,624,350; both orders together give 24, or 0.0015%. ## A worked example Take a $200 pot built from $100 each. AJs' equity of 68.44% is worth $136.88, a $36.88 edge, and A5s' 31.56% is worth $63.12, which is $36.88 under its stake. Out of 1,000 deals you should see around 648 outright wins for AJs, 280 for A5s, and 72 split pots. ## The same matchup from the other side The reversed view, A5s against AJs, shows 31.56% for A5s and 68.44% for AJs. It is the same count, so it redirects here. ## Keep exploring The calculator link fills in AsJs against Ah5h, 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 AsJs against Ah5h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsJs&p2=Ah5h) - [AJs combos](https://georgelipoker.com/combos/ajs.md) - [A5s combos](https://georgelipoker.com/combos/a5s.md) - [AJs vs A6s](https://georgelipoker.com/equity/ajs-vs-a6s.md) - [AJs vs KTo](https://georgelipoker.com/equity/ajs-vs-kto.md) - [AKo vs A5s](https://georgelipoker.com/equity/ako-vs-a5s.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 - [AJs vs A6s: preflop equity](https://georgelipoker.com/equity/ajs-vs-a6s.md) - [AJs vs KTo: preflop equity](https://georgelipoker.com/equity/ajs-vs-kto.md) - [AKo vs A5s: preflop equity](https://georgelipoker.com/equity/ako-vs-a5s.md)