--- title: "A9o vs JTs: preflop equity" url: "https://georgelipoker.com/equity/a9o-vs-jts.md" canonical_url: "https://georgelipoker.com/equity/a9o-vs-jts" last_updated: "2026-10-23" type: "reference" summary: "A9o vs JTs is close to a coin flip before the flop: 52.72% to 47.28% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a9o-vs-a2s.md", "https://georgelipoker.com/equity/a9o-vs-qto.md", "https://georgelipoker.com/equity/kjo-vs-jts.md"] --- # A9o vs JTs: preflop equity A9o vs JTs is close to a coin flip before the flop: 52.72% to 47.28% equity, counted exactly over every board, with the split by flop type and suit. In equity, A9o against JTs stands at 52.72% to 47.28%, a gap of 5.44 points. ## A9o against JTs: the numbers **Exact preflop results for A9o against JTs, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A9o | 52.500 | 0.436 | 47.064 | 52.718 | | JTs | 47.064 | 0.436 | 52.500 | 47.282 | The first hand is an offsuit hand; the second is a suited hand. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other. That is a slim edge: neither hand is far ahead. Split pots make up 0.44% of the boards, and both equity figures count them as half a win each. In the ranking of all 169 starting hands, A9o is number 25 and JTs is number 45. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A9o | 43,150,000 | 358,000 | 38,682,000 | | JTs | 38,682,000 | 358,000 | 43,150,000 | 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. **A9o 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) | | --- | --- | --- | --- | --- | | A9o | 1.115 | 1.905 | 2.125 | 0.897 | | JTs | 0.897 | 2.125 | 1.905 | 1.115 | 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 By flop texture, A9o's equity runs from 48.43% on rainbow flops topped by a ten or better up to 67.90% on low rainbow flops (nine high or lower). The overall edge for A9o hides rainbow flops topped by a ten or better, where JTs comes out in front. **A9o against JTs by flop texture, in percent** | Flop | Share of flops | A9o wins | Ties | JTs wins | A9o equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.988 | 48.357 | 0.150 | 51.493 | 48.432 | | Rainbow, nine or lower | 7.042 | 67.543 | 0.711 | 31.746 | 67.899 | | Two-tone | 46.667 | 50.302 | 0.257 | 49.441 | 50.431 | | Monotone | 5.212 | 49.962 | 2.364 | 47.674 | 51.144 | | Paired | 17.091 | 58.896 | 0.624 | 40.480 | 59.208 | 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 Relative to a random opponent, A9o changes by -8.05 points (baseline 60.77%) and JTs by -10.25 points (baseline 57.53%). **A9o 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 | | --- | --- | --- | --- | --- | | A9o, all flops | 52.718 | 60.773 | -8.055 | 0.86746 | | A9o, rainbow, ten or higher | 48.432 | 60.773 | -12.341 | 0.79693 | | A9o, rainbow, nine or lower | 67.899 | 60.773 | +7.126 | 1.11726 | | A9o, two-tone | 50.431 | 60.773 | -10.342 | 0.82983 | | A9o, monotone | 51.144 | 60.773 | -9.629 | 0.84156 | | A9o, paired | 59.208 | 60.773 | -1.565 | 0.97425 | | JTs, all flops | 47.282 | 57.528 | -10.246 | 0.82190 | | JTs, rainbow, ten or higher | 51.568 | 57.528 | -5.960 | 0.89640 | | JTs, rainbow, nine or lower | 32.101 | 57.528 | -25.427 | 0.55801 | | JTs, two-tone | 49.569 | 57.528 | -7.959 | 0.86165 | | JTs, monotone | 48.856 | 57.528 | -8.672 | 0.84926 | | JTs, paired | 40.792 | 57.528 | -16.736 | 0.70908 | ## Does a shared suit matter? Of the deals of this matchup, 24 share a suit (A9o at 53.12%) and 24 do not (52.31%). A9o does better with a shared suit, by 0.81 points. **A9o against JTs by suit overlap, in percent** | Deals | Specific deals | Share of deals | A9o wins | Ties | JTs wins | A9o equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 52.885 | 0.476 | 46.639 | 53.123 | | No shared suit | 24 | 50.00 | 52.117 | 0.395 | 47.488 | 52.314 | ## How often this matchup comes up Exactly 48 specific deals fit this matchup in one seat order, which is 0.0030% of 1,624,350; both orders together give 96, or 0.0059%. ## A worked example Worked example: both players commit $100, so $200 sits in the middle. Over every board, A9o's average share is $105.44 (a gain of $5.44) and JTs' is $94.56 (a loss of $5.44). Run 1,000 deals and the tally comes out near 525 for A9o, 471 for JTs and 4 ties. ## The same matchup from the other side The reversed view, JTs against A9o, shows 47.28% for JTs and 52.72% for A9o. It is the same count, so it redirects here. ## Keep exploring As9h against JdTd 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 As9h against JdTd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As9h&p2=JdTd) - [A9o combos](https://georgelipoker.com/combos/a9o.md) - [JTs combos](https://georgelipoker.com/combos/jts.md) - [A9o vs A2s](https://georgelipoker.com/equity/a9o-vs-a2s.md) - [A9o vs QTo](https://georgelipoker.com/equity/a9o-vs-qto.md) - [KJo vs JTs](https://georgelipoker.com/equity/kjo-vs-jts.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 - [A9o vs A2s: preflop equity](https://georgelipoker.com/equity/a9o-vs-a2s.md) - [A9o vs QTo: preflop equity](https://georgelipoker.com/equity/a9o-vs-qto.md) - [KJo vs JTs: preflop equity](https://georgelipoker.com/equity/kjo-vs-jts.md)