--- title: "A9s vs JTs: preflop equity" url: "https://georgelipoker.com/equity/a9s-vs-jts.md" canonical_url: "https://georgelipoker.com/equity/a9s-vs-jts" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, A9s or JTs? A9s leads 55.47% to 44.53% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a9s-vs-a2s.md", "https://georgelipoker.com/equity/a9s-vs-qto.md", "https://georgelipoker.com/equity/ato-vs-jts.md"] --- # A9s vs JTs: preflop equity Who is ahead, A9s or JTs? A9s leads 55.47% to 44.53% before the flop, counted exactly over every board, with the split by flop type and suit. Counting every board, the equity split is 55.47% for A9s and 44.53% for JTs, so A9s leads by 10.94 points. ## A9s against JTs: the numbers **Exact preflop results for A9s against JTs, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A9s | 55.231 | 0.482 | 44.287 | 55.472 | | JTs | 44.287 | 0.482 | 55.231 | 44.528 | Each side holds one of the suited hands: A9s and JTs. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances. A9s is ahead, but JTs is far from dead: it takes 443 of every 1,000 deals outright. Ties are part of the picture: 0.48% of boards end in a split pot, and each side counts that as half a win. A9s ranks number 18 of 169 starting hands, and JTs ranks number 45, by equity against a random hand. **Boards behind the percentages: 27,396,864 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A9s | 15,132,000 | 132,000 | 12,133,000 | | JTs | 12,133,000 | 132,000 | 15,132,000 | Exact total: 16 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. **A9s 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) | | --- | --- | --- | --- | --- | | A9s | 1.246 | 1.811 | 2.258 | 0.803 | | JTs | 0.803 | 2.258 | 1.811 | 1.246 | 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 A9s prefers low rainbow flops (nine high or lower), where it holds 69.42%, and likes rainbow flops topped by a ten or better least, where it holds 50.12%. A9s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **A9s against JTs by flop texture, in percent** | Flop | Share of flops | A9s wins | Ties | JTs wins | A9s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 50.049 | 0.146 | 49.805 | 50.122 | | Rainbow, nine or lower | 7.042 | 69.070 | 0.689 | 30.241 | 69.415 | | Two-tone | 46.727 | 54.056 | 0.241 | 45.703 | 54.176 | | Monotone | 5.273 | 51.391 | 3.399 | 45.210 | 53.091 | | Paired | 17.091 | 61.166 | 0.624 | 38.210 | 61.478 | 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 A random hand would give A9s 62.78% and JTs 57.53%. Against each other the change is -7.31 points for A9s and -13.00 for JTs. **A9s 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 | | --- | --- | --- | --- | --- | | A9s, all flops | 55.472 | 62.781 | -7.309 | 0.88358 | | A9s, rainbow, ten or higher | 50.122 | 62.781 | -12.659 | 0.79836 | | A9s, rainbow, nine or lower | 69.415 | 62.781 | +6.634 | 1.10567 | | A9s, two-tone | 54.176 | 62.781 | -8.605 | 0.86294 | | A9s, monotone | 53.091 | 62.781 | -9.690 | 0.84565 | | A9s, paired | 61.478 | 62.781 | -1.303 | 0.97925 | | JTs, all flops | 44.528 | 57.528 | -13.000 | 0.77402 | | JTs, rainbow, ten or higher | 49.878 | 57.528 | -7.650 | 0.86702 | | JTs, rainbow, nine or lower | 30.585 | 57.528 | -26.943 | 0.53165 | | JTs, two-tone | 45.824 | 57.528 | -11.704 | 0.79655 | | JTs, monotone | 46.909 | 57.528 | -10.619 | 0.81541 | | JTs, paired | 38.522 | 57.528 | -19.006 | 0.66962 | ## Does a shared suit matter? Suit overlap shows up in the numbers. With a suit in common A9s has 57.25% equity, and with none in common it has 54.88%. A9s does better with a shared suit, by 2.37 points. **A9s against JTs by suit overlap, in percent** | Deals | Specific deals | Share of deals | A9s wins | Ties | JTs wins | A9s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 4 | 25.00 | 56.969 | 0.557 | 42.474 | 57.247 | | No shared suit | 12 | 75.00 | 54.652 | 0.457 | 44.891 | 54.881 | ## How often this matchup comes up The class pair covers 16 combinations of specific cards in a fixed seat order, 0.0010% of 1,624,350, and 32 (0.0020%) in either order. ## A worked example Put $100 each into a $200 pot and deal every board once: A9s averages $110.94 back, ahead of its $100 by $10.94, while JTs averages $89.06, short of its $100 by $10.94. Out of 1,000 deals you should see around 552 outright wins for A9s, 443 for JTs, and 5 split pots. ## The same matchup from the other side If you came looking for JTs against A9s, the numbers are the same with the hands swapped: 44.53% and 55.47%. ## Keep exploring As9s against JhTh 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 As9s against JhTh in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As9s&p2=JhTh) - [A9s combos](https://georgelipoker.com/combos/a9s.md) - [JTs combos](https://georgelipoker.com/combos/jts.md) - [A9s vs A2s](https://georgelipoker.com/equity/a9s-vs-a2s.md) - [A9s vs QTo](https://georgelipoker.com/equity/a9s-vs-qto.md) - [ATo vs JTs](https://georgelipoker.com/equity/ato-vs-jts.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 16 specific deals, with both seven-card hands compared each time. Equity gives half a win for a tie. For the flop rows, a board is counted once under each of the ten flops inside it. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [A9s vs A2s: preflop equity](https://georgelipoker.com/equity/a9s-vs-a2s.md) - [A9s vs QTo: preflop equity](https://georgelipoker.com/equity/a9s-vs-qto.md) - [ATo vs JTs: preflop equity](https://georgelipoker.com/equity/ato-vs-jts.md)