--- title: "33 vs T9o: preflop equity" url: "https://georgelipoker.com/equity/33-vs-t9o.md" canonical_url: "https://georgelipoker.com/equity/33-vs-t9o" last_updated: "2026-10-23" type: "reference" summary: "33 vs T9o is close to a coin flip before the flop: 49.17% to 50.83% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/33-vs-98s.md", "https://georgelipoker.com/equity/33-vs-22.md", "https://georgelipoker.com/equity/t8s-vs-t9o.md"] --- # 33 vs T9o: preflop equity 33 vs T9o is close to a coin flip before the flop: 49.17% to 50.83% equity, counted exactly over every board, with the split by flop type and suit. The exact count puts T9o at 50.83% and 33 at 49.17% when the two hands see all five board cards. ## 33 against T9o: the numbers **Exact preflop results for 33 against T9o, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 33 | 48.461 | 1.420 | 50.119 | 49.171 | | T9o | 50.119 | 1.420 | 48.461 | 50.829 | Here a pocket pair (33) meets an offsuit hand (T9o). This is a pair against two overcards, a matchup that stays close because the other hand only needs one of its ranks to appear. T9o leads by less than 2 points of equity, so the result of any one deal is close to a toss-up. The tie share is 1.42%: on those boards the pot is chopped and neither hand wins outright. Ranked by equity against a random hand, 33 is number 66 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 | | --- | --- | --- | --- | | 33 | 59,746,000 | 1,751,000 | 61,790,000 | | T9o | 61,790,000 | 1,751,000 | 59,746,000 | 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. **33 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) | | --- | --- | --- | --- | --- | | 33 | 0.967 | 2.064 | 1.995 | 1.034 | | T9o | 1.034 | 1.995 | 2.064 | 0.967 | The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call. ## Who is ahead on which flops Break the boards down by their first three cards and T9o is strongest on monotone flops (52.91%) and weakest on low rainbow flops (nine high or lower) (44.82%). 33 takes over on low rainbow flops (nine high or lower) and paired flops, so the favorite before the flop is the underdog on those boards. **33 against T9o by flop texture, in percent** | Flop | Share of flops | 33 wins | Ties | T9o wins | 33 equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.341 | 46.937 | 0.819 | 52.244 | 47.347 | | Rainbow, nine or lower | 5.689 | 54.889 | 0.584 | 44.527 | 55.181 | | Two-tone | 46.485 | 48.245 | 0.763 | 50.992 | 48.627 | | Monotone | 5.151 | 45.759 | 2.663 | 51.578 | 47.090 | | Paired | 17.334 | 49.963 | 3.963 | 46.074 | 51.944 | 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 How much does the opponent matter? Compared with its random-hand 53.69%, 33 changes by -4.52 points, and T9o, from 51.53%, by -0.70. **33 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 | | --- | --- | --- | --- | --- | | 33, all flops | 49.171 | 53.693 | -4.522 | 0.91578 | | 33, rainbow, ten or higher | 47.347 | 53.693 | -6.346 | 0.88181 | | 33, rainbow, nine or lower | 55.181 | 53.693 | +1.488 | 1.02771 | | 33, two-tone | 48.627 | 53.693 | -5.066 | 0.90565 | | 33, monotone | 47.090 | 53.693 | -6.603 | 0.87702 | | 33, paired | 51.944 | 53.693 | -1.749 | 0.96743 | | T9o, all flops | 50.829 | 51.532 | -0.703 | 0.98636 | | T9o, rainbow, ten or higher | 52.653 | 51.532 | +1.121 | 1.02175 | | T9o, rainbow, nine or lower | 44.819 | 51.532 | -6.713 | 0.86973 | | T9o, two-tone | 51.373 | 51.532 | -0.159 | 0.99691 | | T9o, monotone | 52.910 | 51.532 | +1.378 | 1.02674 | | T9o, paired | 48.056 | 51.532 | -3.476 | 0.93255 | ## Does a shared suit matter? Looking only at deals where the hands share a suit, T9o has 50.92%; looking only at deals where they do not, 50.37%. T9o does better with a shared suit, by 0.55 points. **33 against T9o by suit overlap, in percent** | Deals | Specific deals | Share of deals | 33 wins | Ties | T9o wins | 33 equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 60 | 83.33 | 48.364 | 1.430 | 50.206 | 49.079 | | No shared suit | 12 | 16.67 | 48.949 | 1.365 | 49.686 | 49.632 | ## 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 With $100 from each side, the $200 pot is split on average as $101.66 for T9o and $98.34 for 33; the first side gains $1.66 per all-in and the second gives up $1.66. Out of 1,000 deals you should see around 501 outright wins for T9o, 485 for 33, and 14 split pots. ## The same matchup from the other side T9o against 33 adds nothing new: it is 50.83% for T9o and 49.17% for 33, the same figures reversed. ## Keep exploring Try 3s3h against Td9c in the calculator: the hands share no suit, and every card can be changed. The links after it are the closest matchups in the ranking. - [Open 3s3h against Td9c in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=3s3h&p2=Td9c) - [33 combos](https://georgelipoker.com/combos/33.md) - [T9o combos](https://georgelipoker.com/combos/t9o.md) - [33 vs 98s](https://georgelipoker.com/equity/33-vs-98s.md) - [33 vs 22](https://georgelipoker.com/equity/33-vs-22.md) - [T8s vs T9o](https://georgelipoker.com/equity/t8s-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 - [33 vs 98s: preflop equity](https://georgelipoker.com/equity/33-vs-98s.md) - [33 vs 22: preflop equity](https://georgelipoker.com/equity/33-vs-22.md) - [T8s vs T9o: preflop equity](https://georgelipoker.com/equity/t8s-vs-t9o.md)