--- title: "ATo vs 86s: preflop equity" url: "https://georgelipoker.com/equity/ato-vs-86s.md" canonical_url: "https://georgelipoker.com/equity/ato-vs-86s" last_updated: "2026-10-23" type: "reference" summary: "ATo is a big favorite over 86s before the flop: 60.13% to 39.87% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ato-vs-76s.md", "https://georgelipoker.com/equity/ato-vs-75s.md", "https://georgelipoker.com/equity/kjs-vs-86s.md"] --- # ATo vs 86s: preflop equity ATo is a big favorite over 86s before the flop: 60.13% to 39.87% equity, counted exactly over every board, with the split by flop type and suit. If ATo and 86s get all the chips in before the flop, ATo owns 60.13% of the pot in the long run and 86s owns 39.87%. ## ATo against 86s: the numbers **Exact preflop results for ATo against 86s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | ATo | 59.927 | 0.413 | 39.660 | 60.134 | | 86s | 39.660 | 0.413 | 59.927 | 39.866 | We compare an offsuit hand with a suited hand. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits. ATo is ahead, but 86s is far from dead: it takes 397 of every 1,000 deals outright. Split pots make up 0.41% of the boards, and both equity figures count them as half a win each. Ranked by equity against a random hand, ATo is number 19 of the 169 starting hands and 86s is number 110. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | ATo | 49,254,000 | 339,000 | 32,597,000 | | 86s | 32,597,000 | 339,000 | 49,254,000 | 48 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. **ATo against 86s 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 | 1.508 | 1.669 | 2.521 | 0.663 | | 86s | 0.663 | 2.521 | 1.669 | 1.508 | 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 68.03% on rainbow flops topped by a ten or better and 34.88% on low rainbow flops (nine high or lower). 86s takes over on low rainbow flops (nine high or lower), so the favorite before the flop is the underdog on those boards. **ATo against 86s by flop texture, in percent** | Flop | Share of flops | ATo wins | Ties | 86s wins | ATo equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.717 | 67.949 | 0.166 | 31.885 | 68.032 | | Rainbow, nine or lower | 6.313 | 34.612 | 0.526 | 64.862 | 34.875 | | Two-tone | 46.667 | 58.378 | 0.226 | 41.396 | 58.491 | | Monotone | 5.212 | 57.181 | 2.349 | 40.470 | 58.356 | | Paired | 17.091 | 62.747 | 0.649 | 36.604 | 63.071 | Flop types: rainbow means three different suits, two-tone means one suit twice, monotone means one suit three times, paired means a repeated rank. ## Compared with a random hand Each hand has a baseline against a random hand: 62.72% for ATo, 46.24% for 86s. Here the change is -2.59 and -6.37 points. **ATo and 86s 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 | 60.134 | 62.722 | -2.588 | 0.95874 | | ATo, rainbow, ten or higher | 68.032 | 62.722 | +5.310 | 1.08466 | | ATo, rainbow, nine or lower | 34.875 | 62.722 | -27.847 | 0.55602 | | ATo, two-tone | 58.491 | 62.722 | -4.231 | 0.93254 | | ATo, monotone | 58.356 | 62.722 | -4.366 | 0.93039 | | ATo, paired | 63.071 | 62.722 | +0.349 | 1.00556 | | 86s, all flops | 39.866 | 46.243 | -6.377 | 0.86210 | | 86s, rainbow, ten or higher | 31.968 | 46.243 | -14.275 | 0.69130 | | 86s, rainbow, nine or lower | 65.125 | 46.243 | +18.882 | 1.40832 | | 86s, two-tone | 41.509 | 46.243 | -4.734 | 0.89763 | | 86s, monotone | 41.644 | 46.243 | -4.599 | 0.90055 | | 86s, paired | 36.929 | 46.243 | -9.314 | 0.79859 | ## Does a shared suit matter? Two kinds of deal exist here. In 24 of them the hands share a suit and ATo holds 60.83%. In 24 they do not, and it holds 59.44%. ATo does better with a shared suit, by 1.39 points. **ATo against 86s by suit overlap, in percent** | Deals | Specific deals | Share of deals | ATo wins | Ties | 86s wins | ATo equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 60.599 | 0.454 | 38.947 | 60.826 | | No shared suit | 24 | 50.00 | 59.256 | 0.372 | 40.372 | 59.442 | ## How often this matchup comes up This page stands for 48 specific-card matchups (0.0030% of 1,624,350 ordered deals), or 96 once you count the seats both ways (0.0059%). ## A worked example Take a $200 pot built from $100 each. ATo's equity of 60.13% is worth $120.26, a $20.26 edge, and 86s' 39.87% is worth $79.74, which is $20.26 under its stake. Over a long run, 1,000 deals split into about 599 for ATo, 397 for 86s and 4 tied. ## The same matchup from the other side One page covers both views. From 86s' side the equity is 39.87%, and from ATo's side it is 60.13%. ## Keep exploring AsTh against 8d6d 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 AsTh against 8d6d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsTh&p2=8d6d) - [ATo combos](https://georgelipoker.com/combos/ato.md) - [86s combos](https://georgelipoker.com/combos/86s.md) - [ATo vs 76s](https://georgelipoker.com/equity/ato-vs-76s.md) - [ATo vs 75s](https://georgelipoker.com/equity/ato-vs-75s.md) - [KJs vs 86s](https://georgelipoker.com/equity/kjs-vs-86s.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 48 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 - [ATo vs 76s: preflop equity](https://georgelipoker.com/equity/ato-vs-76s.md) - [ATo vs 75s: preflop equity](https://georgelipoker.com/equity/ato-vs-75s.md) - [KJs vs 86s: preflop equity](https://georgelipoker.com/equity/kjs-vs-86s.md)