--- title: "ATs vs JTo: preflop equity" url: "https://georgelipoker.com/equity/ats-vs-jto.md" canonical_url: "https://georgelipoker.com/equity/ats-vs-jto" last_updated: "2026-10-23" type: "reference" summary: "ATs is a big favorite over JTo before the flop: 72.26% to 27.74% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ats-vs-t9s.md", "https://georgelipoker.com/equity/ats-vs-33.md", "https://georgelipoker.com/equity/aqo-vs-jto.md"] --- # ATs vs JTo: preflop equity ATs is a big favorite over JTo before the flop: 72.26% to 27.74% equity, counted exactly over every board, with the split by flop type and suit. Counting every board, the equity split is 72.26% for ATs and 27.74% for JTo, so ATs leads by 44.52 points. ## ATs against JTo: the numbers **Exact preflop results for ATs against JTo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | ATs | 71.403 | 1.720 | 26.877 | 72.263 | | JTo | 26.877 | 1.720 | 71.403 | 27.737 | Here a suited hand (ATs) meets an offsuit hand (JTo). Because the hands share one rank, the one with the higher kicker is ahead when that rank pairs and the other hand is mostly drawing. ATs is well ahead, and JTo needs a specific kind of board to catch up. Ties are part of the picture: 1.72% of boards end in a split pot, and each side counts that as half a win. In the ranking of all 169 starting hands, ATs is number 13 and JTo is number 57. **Boards behind the percentages: 61,642,944 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | ATs | 44,015,000 | 1,060,000 | 16,568,000 | | JTo | 16,568,000 | 1,060,000 | 44,015,000 | The total is exact: 36 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. **ATs against JTo 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 | 2.605 | 1.401 | 3.721 | 0.384 | | JTo | 0.384 | 3.721 | 1.401 | 2.605 | The final column gives the least the pot must offer for each unit called for a call to break even at this equity. ## Who is ahead on which flops Across the five flop textures ATs' equity moves by 14.50 points, from 65.13% on monotone flops to 79.63% on low rainbow flops (nine high or lower). ATs stays ahead on all five textures. **ATs against JTo by flop texture, in percent** | Flop | Share of flops | ATs wins | Ties | JTo wins | ATs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.177 | 67.954 | 1.634 | 30.412 | 68.771 | | Rainbow, nine or lower | 7.771 | 78.850 | 1.551 | 19.599 | 79.626 | | Two-tone | 46.527 | 71.195 | 1.486 | 27.319 | 71.938 | | Monotone | 5.192 | 63.611 | 3.033 | 33.356 | 65.128 | | Paired | 17.333 | 75.569 | 2.147 | 22.284 | 76.642 | Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank. ## Compared with a random hand Against one random hand instead, ATs holds 64.60% and JTo holds 55.25%. Facing each other changes that by +7.66 points for ATs and -27.51 points for JTo. **ATs and JTo 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 | 72.263 | 64.602 | +7.661 | 1.11859 | | ATs, rainbow, ten or higher | 68.771 | 64.602 | +4.169 | 1.06453 | | ATs, rainbow, nine or lower | 79.626 | 64.602 | +15.024 | 1.23256 | | ATs, two-tone | 71.938 | 64.602 | +7.336 | 1.11356 | | ATs, monotone | 65.128 | 64.602 | +0.526 | 1.00814 | | ATs, paired | 76.642 | 64.602 | +12.040 | 1.18637 | | JTo, all flops | 27.737 | 55.248 | -27.511 | 0.50205 | | JTo, rainbow, ten or higher | 31.229 | 55.248 | -24.019 | 0.56525 | | JTo, rainbow, nine or lower | 20.374 | 55.248 | -34.874 | 0.36877 | | JTo, two-tone | 28.062 | 55.248 | -27.186 | 0.50793 | | JTo, monotone | 34.872 | 55.248 | -20.376 | 0.63119 | | JTo, paired | 23.358 | 55.248 | -31.890 | 0.42278 | ## Does a shared suit matter? Split by suits, the deals give ATs 72.00% when the hands overlap in a suit and 72.39% when they do not. ATs does better with no shared suit, by 0.39 points. **ATs against JTo by suit overlap, in percent** | Deals | Specific deals | Share of deals | ATs wins | Ties | JTo wins | ATs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 33.33 | 71.095 | 1.819 | 27.086 | 72.004 | | No shared suit | 24 | 66.67 | 71.557 | 1.671 | 26.772 | 72.393 | ## How often this matchup comes up This page stands for 36 specific-card matchups (0.0022% of 1,624,350 ordered deals), or 72 once you count the seats both ways (0.0044%). ## A worked example Say each player puts $100 in before the flop, making a $200 pot. On average ATs takes back $144.52 of it, which is $44.52 more than it put in, and JTo takes back $55.48, $44.52 less than it put in. Think in thousands: about 714 of 1,000 go to ATs, about 269 go to JTo, and about 17 are chopped. ## The same matchup from the other side One page covers both views. From JTo's side the equity is 27.74%, and from ATs' side it is 72.26%. ## Keep exploring The calculator link fills in AsTs against JhTd, 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 AsTs against JhTd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsTs&p2=JhTd) - [ATs combos](https://georgelipoker.com/combos/ats.md) - [JTo combos](https://georgelipoker.com/combos/jto.md) - [ATs vs T9s](https://georgelipoker.com/equity/ats-vs-t9s.md) - [ATs vs 33](https://georgelipoker.com/equity/ats-vs-33.md) - [AQo vs JTo](https://georgelipoker.com/equity/aqo-vs-jto.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed This is an exact count with no sampling. For the 36 ways to deal one ATs and one JTo 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 T9s: preflop equity](https://georgelipoker.com/equity/ats-vs-t9s.md) - [ATs vs 33: preflop equity](https://georgelipoker.com/equity/ats-vs-33.md) - [AQo vs JTo: preflop equity](https://georgelipoker.com/equity/aqo-vs-jto.md)