--- title: "AJs vs ATs: preflop equity" url: "https://georgelipoker.com/equity/ajs-vs-ats.md" canonical_url: "https://georgelipoker.com/equity/ajs-vs-ats" last_updated: "2026-10-23" type: "reference" summary: "AJs is a big favorite over ATs before the flop: 69.87% to 30.13% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ajs-vs-aqo.md", "https://georgelipoker.com/equity/ajs-vs-ajo.md", "https://georgelipoker.com/equity/ako-vs-ats.md"] --- # AJs vs ATs: preflop equity AJs is a big favorite over ATs before the flop: 69.87% to 30.13% equity, counted exactly over every board, with the split by flop type and suit. If AJs and ATs get all the chips in before the flop, AJs owns 69.87% of the pot in the long run and ATs owns 30.13%. ## AJs against ATs: the numbers **Exact preflop results for AJs against ATs, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AJs | 66.219 | 7.305 | 26.476 | 69.872 | | ATs | 26.476 | 7.305 | 66.219 | 30.128 | Each side holds one of the suited hands: AJs and ATs. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up. A lead of 39.74 points is large but not decisive: ATs still takes about 265 of every 1,000 deals. The tie share is 7.31%: on those boards the pot is chopped and neither hand wins outright. Place 11 of 169 belongs to AJs and place 13 belongs to ATs in the ranking against a random hand. **Boards behind the percentages: 20,547,648 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AJs | 13,606,000 | 1,501,000 | 5,440,000 | | ATs | 5,440,000 | 1,501,000 | 13,606,000 | 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. **AJs against ATs 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 | 2.319 | 1.510 | 3.777 | 0.431 | | ATs | 0.431 | 3.777 | 1.510 | 2.319 | The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity. ## Who is ahead on which flops Low rainbow flops (nine high or lower) are the best for AJs (81.20%); monotone flops are the worst (63.82%). 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 ATs by flop texture, in percent** | Flop | Share of flops | AJs wins | Ties | ATs wins | AJs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.138 | 66.911 | 5.409 | 27.680 | 69.615 | | Rainbow, nine or lower | 7.771 | 78.766 | 4.872 | 16.362 | 81.202 | | Two-tone | 46.543 | 67.176 | 4.774 | 28.050 | 69.563 | | Monotone | 5.215 | 60.654 | 6.341 | 33.005 | 63.824 | | Paired | 17.333 | 58.779 | 18.010 | 23.211 | 67.784 | 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 A random hand would give AJs 65.39% and ATs 64.60%. Against each other the change is +4.48 points for AJs and -34.47 for ATs. **AJs and ATs 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 | 69.872 | 65.393 | +4.479 | 1.06849 | | AJs, rainbow, ten or higher | 69.615 | 65.393 | +4.222 | 1.06456 | | AJs, rainbow, nine or lower | 81.202 | 65.393 | +15.809 | 1.24175 | | AJs, two-tone | 69.563 | 65.393 | +4.170 | 1.06377 | | AJs, monotone | 63.824 | 65.393 | -1.569 | 0.97601 | | AJs, paired | 67.784 | 65.393 | +2.391 | 1.03656 | | ATs, all flops | 30.128 | 64.602 | -34.474 | 0.46636 | | ATs, rainbow, ten or higher | 30.385 | 64.602 | -34.217 | 0.47034 | | ATs, rainbow, nine or lower | 18.798 | 64.602 | -45.804 | 0.29098 | | ATs, two-tone | 30.437 | 64.602 | -34.165 | 0.47115 | | ATs, monotone | 36.176 | 64.602 | -28.426 | 0.55998 | | ATs, paired | 32.216 | 64.602 | -32.386 | 0.49868 | ## Does a shared suit matter? A shared suit is impossible for this matchup, so AJs' 69.87% is the answer for every suit pattern. **AJs against ATs by suit overlap, in percent** | Deals | Specific deals | Share of deals | AJs wins | Ties | ATs wins | AJs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 66.219 | 7.305 | 26.476 | 69.872 | ## 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 Put $100 each into a $200 pot and deal every board once: AJs averages $139.74 back, ahead of its $100 by $39.74, while ATs averages $60.26, short of its $100 by $39.74. Per 1,000 deals: AJs wins about 662, ATs wins about 265, and about 73 end in a split pot. ## The same matchup from the other side The mirror image, ATs against AJs, is 30.13% to 69.87%, and its address redirects to this page. ## Keep exploring AsJs against AhTh 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 AsJs against AhTh in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsJs&p2=AhTh) - [AJs combos](https://georgelipoker.com/combos/ajs.md) - [ATs combos](https://georgelipoker.com/combos/ats.md) - [AJs vs AQo](https://georgelipoker.com/equity/ajs-vs-aqo.md) - [AJs vs AJo](https://georgelipoker.com/equity/ajs-vs-ajo.md) - [AKo vs ATs](https://georgelipoker.com/equity/ako-vs-ats.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 AQo: preflop equity](https://georgelipoker.com/equity/ajs-vs-aqo.md) - [AJs vs AJo: preflop equity](https://georgelipoker.com/equity/ajs-vs-ajo.md) - [AKo vs ATs: preflop equity](https://georgelipoker.com/equity/ako-vs-ats.md)