--- title: "A3s vs JTo: preflop equity" url: "https://georgelipoker.com/equity/a3s-vs-jto.md" canonical_url: "https://georgelipoker.com/equity/a3s-vs-jto" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, A3s or JTo? A3s leads 57.03% to 42.97% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a3s-vs-t9s.md", "https://georgelipoker.com/equity/a3s-vs-33.md", "https://georgelipoker.com/equity/qjo-vs-jto.md"] --- # A3s vs JTo: preflop equity Who is ahead, A3s or JTo? A3s leads 57.03% to 42.97% before the flop, counted exactly over every board, with the split by flop type and suit. Over all 1,712,304 boards that can follow this deal, A3s finishes with 57.03% of the pot and JTo with 42.97%. ## A3s against JTo: the numbers **Exact preflop results for A3s against JTo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A3s | 56.796 | 0.474 | 42.730 | 57.033 | | JTo | 42.730 | 0.474 | 56.796 | 42.967 | A3s and JTo are a suited hand and an offsuit hand, in that order. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other. A 14.06 point lead is real, and JTo still takes about 427 of every 1,000 deals outright. About 0.47% of boards chop the pot, which is why equity sits slightly above the win figure for both hands. A3s ranks number 38 of 169 starting hands, and JTo ranks number 57, by equity against a random hand. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A3s | 46,681,000 | 390,000 | 35,120,000 | | JTo | 35,120,000 | 390,000 | 46,681,000 | 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. **A3s 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) | | --- | --- | --- | --- | --- | | A3s | 1.327 | 1.761 | 2.340 | 0.753 | | JTo | 0.753 | 2.340 | 1.761 | 1.327 | 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 If you know the kind of flop that came, the numbers shift: A3s holds 70.38% on low rainbow flops (nine high or lower) and 50.10% on rainbow flops topped by a ten or better. A3s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **A3s against JTo by flop texture, in percent** | Flop | Share of flops | A3s wins | Ties | JTo wins | A3s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.988 | 50.021 | 0.165 | 49.814 | 50.103 | | Rainbow, nine or lower | 7.042 | 69.952 | 0.858 | 29.190 | 70.381 | | Two-tone | 46.667 | 56.422 | 0.297 | 43.281 | 56.570 | | Monotone | 5.212 | 53.187 | 2.391 | 44.422 | 54.383 | | Paired | 17.091 | 63.007 | 0.649 | 36.344 | 63.331 | 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 A random hand would give A3s 58.22% and JTo 55.25%. Against each other the change is -1.19 points for A3s and -12.28 for JTo. **A3s 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 | | --- | --- | --- | --- | --- | | A3s, all flops | 57.033 | 58.220 | -1.187 | 0.97961 | | A3s, rainbow, ten or higher | 50.103 | 58.220 | -8.117 | 0.86058 | | A3s, rainbow, nine or lower | 70.381 | 58.220 | +12.161 | 1.20888 | | A3s, two-tone | 56.570 | 58.220 | -1.650 | 0.97166 | | A3s, monotone | 54.383 | 58.220 | -3.837 | 0.93409 | | A3s, paired | 63.331 | 58.220 | +5.111 | 1.08779 | | JTo, all flops | 42.967 | 55.248 | -12.281 | 0.77771 | | JTo, rainbow, ten or higher | 49.897 | 55.248 | -5.351 | 0.90315 | | JTo, rainbow, nine or lower | 29.619 | 55.248 | -25.629 | 0.53611 | | JTo, two-tone | 43.430 | 55.248 | -11.818 | 0.78609 | | JTo, monotone | 45.617 | 55.248 | -9.631 | 0.82568 | | JTo, paired | 36.669 | 55.248 | -18.579 | 0.66372 | ## Does a shared suit matter? Two kinds of deal exist here. In 24 of them the hands share a suit and A3s holds 56.67%. In 24 they do not, and it holds 57.39%. A3s does better with no shared suit, by 0.72 points. **A3s against JTo by suit overlap, in percent** | Deals | Specific deals | Share of deals | A3s wins | Ties | JTo wins | A3s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 56.413 | 0.516 | 43.071 | 56.671 | | No shared suit | 24 | 50.00 | 57.179 | 0.431 | 42.390 | 57.394 | ## How often this matchup comes up You will meet this exact matchup 0.0059% of the time in a random heads-up deal: 96 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 A3s gets $114.06 of it on average and JTo gets $85.94. Scaled to 1,000 deals, that is roughly 568 wins for A3s, 427 for JTo and 5 chopped pots. ## The same matchup from the other side Read it from the other side: JTo against A3s is the same matchup with the numbers swapped, so JTo holds 42.97% and A3s holds 57.03%. That address sends you back to this page. ## Keep exploring Open the calculator with As3s against JhTd 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 As3s against JhTd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As3s&p2=JhTd) - [A3s combos](https://georgelipoker.com/combos/a3s.md) - [JTo combos](https://georgelipoker.com/combos/jto.md) - [A3s vs T9s](https://georgelipoker.com/equity/a3s-vs-t9s.md) - [A3s vs 33](https://georgelipoker.com/equity/a3s-vs-33.md) - [QJo vs JTo](https://georgelipoker.com/equity/qjo-vs-jto.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 48 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [A3s vs T9s: preflop equity](https://georgelipoker.com/equity/a3s-vs-t9s.md) - [A3s vs 33: preflop equity](https://georgelipoker.com/equity/a3s-vs-33.md) - [QJo vs JTo: preflop equity](https://georgelipoker.com/equity/qjo-vs-jto.md)