--- title: "ATo vs JTs: preflop equity" url: "https://georgelipoker.com/equity/ato-vs-jts.md" canonical_url: "https://georgelipoker.com/equity/ato-vs-jts" last_updated: "2026-10-23" type: "reference" summary: "ATo is a big favorite over JTs before the flop: 67.12% to 32.88% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ato-vs-a2s.md", "https://georgelipoker.com/equity/ato-vs-qto.md", "https://georgelipoker.com/equity/kjs-vs-jts.md"] --- # ATo vs JTs: preflop equity ATo is a big favorite over JTs before the flop: 67.12% to 32.88% equity, counted exactly over every board, with the split by flop type and suit. Before any board card is dealt, ATo holds 67.12% equity against JTs, which leaves JTs with 32.88%. ## ATo against JTs: the numbers **Exact preflop results for ATo against JTs, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | ATo | 66.251 | 1.745 | 32.004 | 67.124 | | JTs | 32.004 | 1.745 | 66.251 | 32.876 | ATo, an offsuit hand, plays JTs, a suited hand. The two hands share a rank, and the one with the better other card dominates: it wins most kicker battles when that shared rank hits. ATo is well ahead, and JTs needs a specific kind of board to catch up. About 1.75% of boards chop the pot, which is why equity sits slightly above the win figure for both hands. Ranked by equity against a random hand, ATo is number 19 of the 169 starting hands and JTs is number 45. **Boards behind the percentages: 61,642,944 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | ATo | 40,839,000 | 1,076,000 | 19,728,000 | | JTs | 19,728,000 | 1,076,000 | 40,839,000 | Exact total: 36 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 JTs 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 | 2.042 | 1.509 | 3.125 | 0.490 | | JTs | 0.490 | 3.125 | 1.509 | 2.042 | 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 ATo prefers low rainbow flops (nine high or lower), where it holds 76.03%, and likes monotone flops least, where it holds 63.11%. ATo stays ahead on all five textures. **ATo against JTs by flop texture, in percent** | Flop | Share of flops | ATo wins | Ties | JTs wins | ATo equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.177 | 64.930 | 1.642 | 33.428 | 65.751 | | Rainbow, nine or lower | 7.771 | 75.247 | 1.574 | 23.179 | 76.034 | | Two-tone | 46.527 | 64.344 | 1.521 | 34.135 | 65.105 | | Monotone | 5.192 | 61.564 | 3.085 | 35.351 | 63.107 | | Paired | 17.333 | 70.508 | 2.156 | 27.336 | 71.586 | 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 Relative to a random opponent, ATo changes by +4.40 points (baseline 62.72%) and JTs by -24.65 points (baseline 57.53%). **ATo and JTs 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 | 67.124 | 62.722 | +4.402 | 1.07018 | | ATo, rainbow, ten or higher | 65.751 | 62.722 | +3.029 | 1.04829 | | ATo, rainbow, nine or lower | 76.034 | 62.722 | +13.312 | 1.21224 | | ATo, two-tone | 65.105 | 62.722 | +2.383 | 1.03799 | | ATo, monotone | 63.107 | 62.722 | +0.385 | 1.00614 | | ATo, paired | 71.586 | 62.722 | +8.864 | 1.14132 | | JTs, all flops | 32.876 | 57.528 | -24.652 | 0.57148 | | JTs, rainbow, ten or higher | 34.249 | 57.528 | -23.279 | 0.59534 | | JTs, rainbow, nine or lower | 23.966 | 57.528 | -33.562 | 0.41660 | | JTs, two-tone | 34.895 | 57.528 | -22.633 | 0.60657 | | JTs, monotone | 36.893 | 57.528 | -20.635 | 0.64131 | | JTs, paired | 28.414 | 57.528 | -29.114 | 0.49392 | ## Does a shared suit matter? Suit overlap shows up in the numbers. With a suit in common ATo has 68.12% equity, and with none in common it has 66.63%. ATo does better with a shared suit, by 1.49 points. **ATo against JTs by suit overlap, in percent** | Deals | Specific deals | Share of deals | ATo wins | Ties | JTs wins | ATo equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 33.33 | 67.210 | 1.819 | 30.971 | 68.119 | | No shared suit | 24 | 66.67 | 65.772 | 1.707 | 32.521 | 66.626 | ## How often this matchup comes up You will meet this exact matchup 0.0044% of the time in a random heads-up deal: 72 of 1,624,350, counting either seat order. ## A worked example A $100 all-in from each player makes a $200 pot, and the exact equity says ATo gets $134.24 of it on average and JTs gets $65.76. Think in thousands: about 663 of 1,000 go to ATo, about 320 go to JTs, and about 17 are chopped. ## The same matchup from the other side If you came looking for JTs against ATo, the numbers are the same with the hands swapped: 32.88% and 67.12%. ## Keep exploring Open the calculator with AsTh against JdTd 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 JdTd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsTh&p2=JdTd) - [ATo combos](https://georgelipoker.com/combos/ato.md) - [JTs combos](https://georgelipoker.com/combos/jts.md) - [ATo vs A2s](https://georgelipoker.com/equity/ato-vs-a2s.md) - [ATo vs QTo](https://georgelipoker.com/equity/ato-vs-qto.md) - [KJs vs JTs](https://georgelipoker.com/equity/kjs-vs-jts.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Method: exact enumeration. The 36 specific deals are grouped by suit pattern, each is run against all 1,712,304 boards, and both seven-card hands are scored. Equity adds half of every tie, and flop textures are tallied over the ten flops inside each board. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [ATo vs A2s: preflop equity](https://georgelipoker.com/equity/ato-vs-a2s.md) - [ATo vs QTo: preflop equity](https://georgelipoker.com/equity/ato-vs-qto.md) - [KJs vs JTs: preflop equity](https://georgelipoker.com/equity/kjs-vs-jts.md)