--- title: "ATs vs A7s: preflop equity" url: "https://georgelipoker.com/equity/ats-vs-a7s.md" canonical_url: "https://georgelipoker.com/equity/ats-vs-a7s" last_updated: "2026-10-23" type: "reference" summary: "ATs is a big favorite over A7s before the flop: 68.68% to 31.32% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ats-vs-a9o.md", "https://georgelipoker.com/equity/ats-vs-kjo.md", "https://georgelipoker.com/equity/aqo-vs-a7s.md"] --- # ATs vs A7s: preflop equity ATs is a big favorite over A7s before the flop: 68.68% to 31.32% equity, counted exactly over every board, with the split by flop type and suit. Averaged over every possible board, ATs is ahead of A7s by 37.36 points of equity, 68.68% to 31.32%. ## ATs against A7s: the numbers **Exact preflop results for ATs against A7s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | ATs | 63.855 | 9.653 | 26.492 | 68.681 | | A7s | 26.492 | 9.653 | 63.855 | 31.319 | This is a contest between two suited hands, ATs and A7s. 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 37.36 points is large but not decisive: A7s still takes about 265 of every 1,000 deals. A split pot comes up on 9.65% of boards, so the wins and the equity differ by half of that. Ranked by equity against a random hand, ATs is number 13 of the 169 starting hands and A7s is number 24. **Boards behind the percentages: 20,547,648 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | ATs | 13,121,000 | 1,983,000 | 5,443,000 | | A7s | 5,443,000 | 1,983,000 | 13,121,000 | The board total is exact, 12 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **ATs against A7s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | ATs | 2.193 | 1.566 | 3.775 | 0.456 | | A7s | 0.456 | 3.775 | 1.566 | 2.193 | 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 Split by what the flop looks like, ATs peaks at 74.90% on rainbow flops topped by a ten or better and bottoms out at 59.22% on low rainbow flops (nine high or lower). ATs stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **ATs against A7s by flop texture, in percent** | Flop | Share of flops | ATs wins | Ties | A7s wins | ATs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 70.739 | 8.325 | 20.936 | 74.902 | | Rainbow, nine or lower | 7.042 | 57.256 | 3.922 | 38.822 | 59.217 | | Two-tone | 46.543 | 65.247 | 6.611 | 28.142 | 68.552 | | Monotone | 5.215 | 59.353 | 7.702 | 32.945 | 63.204 | | Paired | 17.333 | 54.671 | 22.567 | 22.762 | 65.955 | 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 Against one random hand instead, ATs holds 64.60% and A7s holds 60.98%. Facing each other changes that by +4.08 points for ATs and -29.66 points for A7s. **ATs and A7s 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 | | --- | --- | --- | --- | --- | | ATs, all flops | 68.681 | 64.602 | +4.079 | 1.06314 | | ATs, rainbow, ten or higher | 74.902 | 64.602 | +10.300 | 1.15944 | | ATs, rainbow, nine or lower | 59.217 | 64.602 | -5.385 | 0.91664 | | ATs, two-tone | 68.552 | 64.602 | +3.950 | 1.06114 | | ATs, monotone | 63.204 | 64.602 | -1.398 | 0.97836 | | ATs, paired | 65.955 | 64.602 | +1.353 | 1.02094 | | A7s, all flops | 31.319 | 60.984 | -29.665 | 0.51356 | | A7s, rainbow, ten or higher | 25.098 | 60.984 | -35.886 | 0.41155 | | A7s, rainbow, nine or lower | 40.783 | 60.984 | -20.201 | 0.66875 | | A7s, two-tone | 31.448 | 60.984 | -29.536 | 0.51568 | | A7s, monotone | 36.796 | 60.984 | -24.188 | 0.60337 | | A7s, paired | 34.045 | 60.984 | -26.939 | 0.55826 | ## Does a shared suit matter? Every legal deal of ATs against A7s leaves the hands with no suit in common, so the suit split does not apply here. **ATs against A7s by suit overlap, in percent** | Deals | Specific deals | Share of deals | ATs wins | Ties | A7s wins | ATs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 63.855 | 9.653 | 26.492 | 68.681 | ## 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 ATs takes back $137.36 of it, which is $37.36 more than it put in, and A7s takes back $62.64, $37.36 less than it put in. Run 1,000 deals and the tally comes out near 639 for ATs, 265 for A7s and 96 ties. ## The same matchup from the other side One page covers both views. From A7s' side the equity is 31.32%, and from ATs' side it is 68.68%. ## Keep exploring Try AsTs against Ah7h 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 AsTs against Ah7h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsTs&p2=Ah7h) - [ATs combos](https://georgelipoker.com/combos/ats.md) - [A7s combos](https://georgelipoker.com/combos/a7s.md) - [ATs vs A9o](https://georgelipoker.com/equity/ats-vs-a9o.md) - [ATs vs KJo](https://georgelipoker.com/equity/ats-vs-kjo.md) - [AQo vs A7s](https://georgelipoker.com/equity/aqo-vs-a7s.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 ATs and one A7s 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 - [ATs vs A9o: preflop equity](https://georgelipoker.com/equity/ats-vs-a9o.md) - [ATs vs KJo: preflop equity](https://georgelipoker.com/equity/ats-vs-kjo.md) - [AQo vs A7s: preflop equity](https://georgelipoker.com/equity/aqo-vs-a7s.md)