--- title: "ATo vs 97s: preflop equity" url: "https://georgelipoker.com/equity/ato-vs-97s.md" canonical_url: "https://georgelipoker.com/equity/ato-vs-97s" last_updated: "2026-10-23" type: "reference" summary: "ATo is a big favorite over 97s before the flop: 60.42% to 39.58% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ato-vs-87s.md", "https://georgelipoker.com/equity/ato-vs-86s.md", "https://georgelipoker.com/equity/kjs-vs-97s.md"] --- # ATo vs 97s: preflop equity ATo is a big favorite over 97s before the flop: 60.42% to 39.58% equity, counted exactly over every board, with the split by flop type and suit. Before any board card is dealt, ATo holds 60.42% equity against 97s, which leaves 97s with 39.58%. ## ATo against 97s: the numbers **Exact preflop results for ATo against 97s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | ATo | 60.218 | 0.412 | 39.370 | 60.424 | | 97s | 39.370 | 0.412 | 60.218 | 39.576 | ATo is an offsuit hand and 97s is a suited hand. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits. That is a modest edge, the kind that shows up over many hands and is easy to miss in one. Split pots make up 0.41% of the boards, and both equity figures count them as half a win each. In the ranking of all 169 starting hands, ATo is number 19 and 97s is number 94. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | ATo | 49,494,000 | 339,000 | 32,358,000 | | 97s | 32,358,000 | 339,000 | 49,494,000 | Exact total: 48 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. **ATo against 97s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | ATo | 1.527 | 1.661 | 2.540 | 0.655 | | 97s | 0.655 | 2.540 | 1.661 | 1.527 | 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 If you know the kind of flop that came, the numbers shift: ATo holds 67.64% on rainbow flops topped by a ten or better and 38.11% on low rainbow flops (nine high or lower). 97s takes over on low rainbow flops (nine high or lower), so the favorite before the flop is the underdog on those boards. **ATo against 97s by flop texture, in percent** | Flop | Share of flops | ATo wins | Ties | 97s wins | ATo equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.717 | 67.545 | 0.194 | 32.261 | 67.642 | | Rainbow, nine or lower | 6.313 | 37.892 | 0.430 | 61.678 | 38.107 | | Two-tone | 46.667 | 58.692 | 0.226 | 41.082 | 58.805 | | Monotone | 5.212 | 57.385 | 2.345 | 40.270 | 58.557 | | Paired | 17.091 | 62.899 | 0.641 | 36.460 | 63.219 | 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 Each hand has a baseline against a random hand: 62.72% for ATo, 49.12% for 97s. Here the change is -2.30 and -9.54 points. **ATo and 97s 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 | | --- | --- | --- | --- | --- | | ATo, all flops | 60.424 | 62.722 | -2.298 | 0.96336 | | ATo, rainbow, ten or higher | 67.642 | 62.722 | +4.920 | 1.07844 | | ATo, rainbow, nine or lower | 38.107 | 62.722 | -24.615 | 0.60755 | | ATo, two-tone | 58.805 | 62.722 | -3.917 | 0.93755 | | ATo, monotone | 58.557 | 62.722 | -4.165 | 0.93360 | | ATo, paired | 63.219 | 62.722 | +0.497 | 1.00792 | | 97s, all flops | 39.576 | 49.118 | -9.542 | 0.80573 | | 97s, rainbow, ten or higher | 32.358 | 49.118 | -16.760 | 0.65878 | | 97s, rainbow, nine or lower | 61.893 | 49.118 | +12.775 | 1.26009 | | 97s, two-tone | 41.195 | 49.118 | -7.923 | 0.83869 | | 97s, monotone | 41.443 | 49.118 | -7.675 | 0.84374 | | 97s, paired | 36.781 | 49.118 | -12.337 | 0.74883 | ## Does a shared suit matter? Two kinds of deal exist here. In 24 of them the hands share a suit and ATo holds 61.11%. In 24 they do not, and it holds 59.74%. ATo does better with a shared suit, by 1.37 points. **ATo against 97s by suit overlap, in percent** | Deals | Specific deals | Share of deals | ATo wins | Ties | 97s wins | ATo equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 60.883 | 0.454 | 38.663 | 61.110 | | No shared suit | 24 | 50.00 | 59.553 | 0.371 | 40.076 | 59.738 | ## How often this matchup comes up Exactly 48 specific deals fit this matchup in one seat order, which is 0.0030% of 1,624,350; both orders together give 96, or 0.0059%. ## A worked example To see what the equity is worth, imagine $100 each in a $200 pot. ATo is worth $120.84 on average (+$20.84); 97s is worth $79.16 (-$20.84). Over a long run, 1,000 deals split into about 602 for ATo, 394 for 97s and 4 tied. ## The same matchup from the other side Read it from the other side: 97s against ATo is the same matchup with the numbers swapped, so 97s holds 39.58% and ATo holds 60.42%. That address sends you back to this page. ## Keep exploring Open the calculator with AsTh against 9d7d already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking. - [Open AsTh against 9d7d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsTh&p2=9d7d) - [ATo combos](https://georgelipoker.com/combos/ato.md) - [97s combos](https://georgelipoker.com/combos/97s.md) - [ATo vs 87s](https://georgelipoker.com/equity/ato-vs-87s.md) - [ATo vs 86s](https://georgelipoker.com/equity/ato-vs-86s.md) - [KJs vs 97s](https://georgelipoker.com/equity/kjs-vs-97s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed All 1,712,304 five-card boards are dealt for every suit pattern among the 48 specific deals of ATo against 97s, and both hands are scored on each. That is a full count, so the percentages are exact. Ties are half a win each, and each board appears once per flop it contains. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [ATo vs 87s: preflop equity](https://georgelipoker.com/equity/ato-vs-87s.md) - [ATo vs 86s: preflop equity](https://georgelipoker.com/equity/ato-vs-86s.md) - [KJs vs 97s: preflop equity](https://georgelipoker.com/equity/kjs-vs-97s.md)