--- title: "JJ vs T9o: preflop equity" url: "https://georgelipoker.com/equity/jj-vs-t9o.md" canonical_url: "https://georgelipoker.com/equity/jj-vs-t9o" last_updated: "2026-10-23" type: "reference" summary: "JJ is a big favorite over T9o before the flop: 85.80% to 14.20% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/jj-vs-98s.md", "https://georgelipoker.com/equity/jj-vs-22.md", "https://georgelipoker.com/equity/tt-vs-t9o.md"] --- # JJ vs T9o: preflop equity JJ is a big favorite over T9o before the flop: 85.80% to 14.20% equity, counted exactly over every board, with the split by flop type and suit. In equity, JJ against T9o stands at 85.80% to 14.20%, a gap of 71.60 points. ## JJ against T9o: the numbers **Exact preflop results for JJ against T9o, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | JJ | 85.607 | 0.389 | 14.004 | 85.801 | | T9o | 14.004 | 0.389 | 85.607 | 14.199 | JJ, a pocket pair, plays T9o, an offsuit hand. Here a pair faces two cards that are both smaller, so the other hand needs to pair up and still be behind. A gap this wide means T9o is in trouble before the flop and has few good runouts. Ties are 0.39% of the outcomes here; each tied board gives both hands half the pot. Ranked by equity against a random hand, JJ is number 4 of the 169 starting hands and T9o is number 78. **Boards behind the percentages: 123,285,888 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | JJ | 105,541,000 | 480,000 | 17,265,000 | | T9o | 17,265,000 | 480,000 | 105,541,000 | The total is exact: 72 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand. **JJ against T9o read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | JJ | 6.043 | 1.168 | 7.141 | 0.165 | | T9o | 0.165 | 7.141 | 1.168 | 6.043 | 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, JJ's equity runs from 80.42% on monotone flops up to 88.82% on paired flops. JJ stays ahead on all five textures. **JJ against T9o by flop texture, in percent** | Flop | Share of flops | JJ wins | Ties | T9o wins | JJ equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.988 | 86.053 | 0.184 | 13.763 | 86.145 | | Rainbow, nine or lower | 7.042 | 84.435 | 0.773 | 14.792 | 84.821 | | Two-tone | 46.485 | 85.092 | 0.305 | 14.603 | 85.245 | | Monotone | 5.151 | 79.572 | 1.698 | 18.730 | 80.421 | | Paired | 17.334 | 88.641 | 0.349 | 11.010 | 88.816 | 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 Relative to a random opponent, JJ changes by +8.33 points (baseline 77.47%) and T9o by -37.33 points (baseline 51.53%). **JJ and T9o 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 | | --- | --- | --- | --- | --- | | JJ, all flops | 85.801 | 77.469 | +8.332 | 1.10755 | | JJ, rainbow, ten or higher | 86.145 | 77.469 | +8.676 | 1.11199 | | JJ, rainbow, nine or lower | 84.821 | 77.469 | +7.352 | 1.09490 | | JJ, two-tone | 85.245 | 77.469 | +7.776 | 1.10038 | | JJ, monotone | 80.421 | 77.469 | +2.952 | 1.03811 | | JJ, paired | 88.816 | 77.469 | +11.347 | 1.14647 | | T9o, all flops | 14.199 | 51.532 | -37.333 | 0.27554 | | T9o, rainbow, ten or higher | 13.855 | 51.532 | -37.677 | 0.26886 | | T9o, rainbow, nine or lower | 15.179 | 51.532 | -36.353 | 0.29455 | | T9o, two-tone | 14.755 | 51.532 | -36.777 | 0.28633 | | T9o, monotone | 19.579 | 51.532 | -31.953 | 0.37994 | | T9o, paired | 11.184 | 51.532 | -40.348 | 0.21703 | ## Does a shared suit matter? Of the deals of this matchup, 60 share a suit (JJ at 85.95%) and 12 do not (85.06%). JJ does better with a shared suit, by 0.89 points. **JJ against T9o by suit overlap, in percent** | Deals | Specific deals | Share of deals | JJ wins | Ties | T9o wins | JJ equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 60 | 83.33 | 85.747 | 0.404 | 13.849 | 85.949 | | No shared suit | 12 | 16.67 | 84.907 | 0.310 | 14.783 | 85.062 | ## How often this matchup comes up Exactly 72 specific deals fit this matchup in one seat order, which is 0.0044% of 1,624,350; both orders together give 144, or 0.0089%. ## A worked example Put $100 each into a $200 pot and deal every board once: JJ averages $171.60 back, ahead of its $100 by $71.60, while T9o averages $28.40, short of its $100 by $71.60. In 1,000 deals of exactly this matchup, expect about 856 won outright by JJ, about 140 won outright by T9o and about 4 split. ## The same matchup from the other side Swap the hands and you get T9o with 14.20% against JJ with 85.80%. We keep one page per matchup, with the better-ranked hand first. ## Keep exploring The calculator link fills in JsJh against Td9c, a deal where the two hands share no suit. Change any card to test your own hand. The neighboring matchups below swap one of the two hands for one of similar strength. - [Open JsJh against Td9c in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=JsJh&p2=Td9c) - [JJ combos](https://georgelipoker.com/combos/jj.md) - [T9o combos](https://georgelipoker.com/combos/t9o.md) - [JJ vs 98s](https://georgelipoker.com/equity/jj-vs-98s.md) - [JJ vs 22](https://georgelipoker.com/equity/jj-vs-22.md) - [TT vs T9o](https://georgelipoker.com/equity/tt-vs-t9o.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 72 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 - [JJ vs 98s: preflop equity](https://georgelipoker.com/equity/jj-vs-98s.md) - [JJ vs 22: preflop equity](https://georgelipoker.com/equity/jj-vs-22.md) - [TT vs T9o: preflop equity](https://georgelipoker.com/equity/tt-vs-t9o.md)