--- title: "AJo vs JTo: preflop equity" url: "https://georgelipoker.com/equity/ajo-vs-jto.md" canonical_url: "https://georgelipoker.com/equity/ajo-vs-jto" last_updated: "2026-10-23" type: "reference" summary: "AJo is a big favorite over JTo before the flop: 71.35% to 28.65% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ajo-vs-t9s.md", "https://georgelipoker.com/equity/ajo-vs-33.md", "https://georgelipoker.com/equity/kqs-vs-jto.md"] --- # AJo vs JTo: preflop equity AJo is a big favorite over JTo before the flop: 71.35% to 28.65% equity, counted exactly over every board, with the split by flop type and suit. Before any board card is dealt, AJo holds 71.35% equity against JTo, which leaves JTo with 28.65%. ## AJo against JTo: the numbers **Exact preflop results for AJo against JTo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | AJo | 70.452 | 1.787 | 27.761 | 71.346 | | JTo | 27.761 | 1.787 | 70.452 | 28.654 | The matchup is offsuit hands on both sides, AJo against JTo. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up. AJo is the clear favorite, though JTo gets there on roughly one board in 3. 1.79% of boards are ties, so the equity of each hand is its win rate plus half of that. By strength against a random hand, AJo holds place 15 of 169 and JTo holds place 57. **Boards behind the percentages: 184,928,832 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | AJo | 130,286,000 | 3,305,000 | 51,338,000 | | JTo | 51,338,000 | 3,305,000 | 130,286,000 | The board total is exact, 108 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages. **AJo 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) | | --- | --- | --- | --- | --- | | AJo | 2.490 | 1.419 | 3.602 | 0.402 | | JTo | 0.402 | 3.602 | 1.419 | 2.490 | 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 The flop changes the picture. AJo does best on low rainbow flops (nine high or lower), at 78.82%, and worst on rainbow flops topped by a ten or better, at 67.95%. AJo stays ahead on all five textures. **AJo against JTo by flop texture, in percent** | Flop | Share of flops | AJo wins | Ties | JTo wins | AJo equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.275 | 67.098 | 1.694 | 31.208 | 67.945 | | Rainbow, nine or lower | 7.771 | 78.012 | 1.618 | 20.370 | 78.821 | | Two-tone | 46.477 | 69.602 | 1.612 | 28.786 | 70.408 | | Monotone | 5.144 | 66.816 | 2.510 | 30.674 | 68.071 | | Paired | 17.333 | 74.925 | 2.244 | 22.831 | 76.047 | A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank. ## Compared with a random hand The table below sets each hand against its own random-hand baseline: a change of +7.79 points for AJo, from 63.56%, and -26.60 for JTo, from 55.25%. **AJo 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 | | --- | --- | --- | --- | --- | | AJo, all flops | 71.346 | 63.563 | +7.783 | 1.12245 | | AJo, rainbow, ten or higher | 67.945 | 63.563 | +4.382 | 1.06894 | | AJo, rainbow, nine or lower | 78.821 | 63.563 | +15.258 | 1.24005 | | AJo, two-tone | 70.408 | 63.563 | +6.845 | 1.10769 | | AJo, monotone | 68.071 | 63.563 | +4.508 | 1.07092 | | AJo, paired | 76.047 | 63.563 | +12.484 | 1.19640 | | JTo, all flops | 28.654 | 55.248 | -26.594 | 0.51864 | | JTo, rainbow, ten or higher | 32.055 | 55.248 | -23.193 | 0.58020 | | JTo, rainbow, nine or lower | 21.179 | 55.248 | -34.069 | 0.38334 | | JTo, two-tone | 29.592 | 55.248 | -25.656 | 0.53562 | | JTo, monotone | 31.929 | 55.248 | -23.319 | 0.57792 | | JTo, paired | 23.953 | 55.248 | -31.295 | 0.43355 | ## Does a shared suit matter? Does suit overlap move the numbers? AJo has 71.51% when the hands share a suit and 70.79% when they do not. AJo does better with a shared suit, by 0.72 points. **AJo against JTo by suit overlap, in percent** | Deals | Specific deals | Share of deals | AJo wins | Ties | JTo wins | AJo equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 84 | 77.78 | 70.600 | 1.812 | 27.588 | 71.506 | | No shared suit | 24 | 22.22 | 69.936 | 1.701 | 28.363 | 70.786 | ## How often this matchup comes up This page stands for 108 specific-card matchups (0.0066% of 1,624,350 ordered deals), or 216 once you count the seats both ways (0.0133%). ## A worked example Say each player puts $100 in before the flop, making a $200 pot. On average AJo takes back $142.70 of it, which is $42.70 more than it put in, and JTo takes back $57.30, $42.70 less than it put in. Over a long run, 1,000 deals split into about 704 for AJo, 278 for JTo and 18 tied. ## The same matchup from the other side Swap the hands and you get JTo with 28.65% against AJo with 71.35%. We keep one page per matchup, with the better-ranked hand first. ## Keep exploring AsJh against JdTc 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 AsJh against JdTc in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsJh&p2=JdTc) - [AJo combos](https://georgelipoker.com/combos/ajo.md) - [JTo combos](https://georgelipoker.com/combos/jto.md) - [AJo vs T9s](https://georgelipoker.com/equity/ajo-vs-t9s.md) - [AJo vs 33](https://georgelipoker.com/equity/ajo-vs-33.md) - [KQs vs JTo](https://georgelipoker.com/equity/kqs-vs-jto.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 108 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 - [AJo vs T9s: preflop equity](https://georgelipoker.com/equity/ajo-vs-t9s.md) - [AJo vs 33: preflop equity](https://georgelipoker.com/equity/ajo-vs-33.md) - [KQs vs JTo: preflop equity](https://georgelipoker.com/equity/kqs-vs-jto.md)