--- title: "77 vs T9o: preflop equity" url: "https://georgelipoker.com/equity/77-vs-t9o.md" canonical_url: "https://georgelipoker.com/equity/77-vs-t9o" last_updated: "2026-10-23" type: "reference" summary: "77 vs T9o is close to a coin flip before the flop: 52.66% to 47.34% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/77-vs-98s.md", "https://georgelipoker.com/equity/77-vs-22.md", "https://georgelipoker.com/equity/aqs-vs-t9o.md"] --- # 77 vs T9o: preflop equity 77 vs T9o is close to a coin flip before the flop: 52.66% to 47.34% equity, counted exactly over every board, with the split by flop type and suit. If 77 and T9o get all the chips in before the flop, 77 owns 52.66% of the pot in the long run and T9o owns 47.34%. ## 77 against T9o: the numbers **Exact preflop results for 77 against T9o, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 77 | 52.373 | 0.580 | 47.047 | 52.663 | | T9o | 47.047 | 0.580 | 52.373 | 47.337 | Here a pocket pair (77) meets an offsuit hand (T9o). A pair against two higher cards is the classic race: the pair is usually a small favorite or close to even, and each overcard that pairs is a way to take the lead. With only 5.32 points between them, the board decides this matchup far more than the cards in hand. Ties are part of the picture: 0.58% of boards end in a split pot, and each side counts that as half a win. Among the 169 starting hands, 77 is number 9 and T9o is number 78 by strength against a random hand. **Boards behind the percentages: 123,285,888 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | 77 | 64,569,000 | 715,000 | 58,002,000 | | T9o | 58,002,000 | 715,000 | 64,569,000 | Exact total: 72 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. **77 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) | | --- | --- | --- | --- | --- | | 77 | 1.113 | 1.909 | 2.126 | 0.899 | | T9o | 0.899 | 2.126 | 1.909 | 1.113 | 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 Across the five flop textures 77's equity moves by 11.17 points, from 49.44% on monotone flops to 60.61% on low rainbow flops (nine high or lower). T9o takes over on rainbow flops topped by a ten or better and monotone flops, so the favorite before the flop is the underdog on those boards. **77 against T9o by flop texture, in percent** | Flop | Share of flops | 77 wins | Ties | T9o wins | 77 equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.341 | 49.422 | 0.375 | 50.203 | 49.609 | | Rainbow, nine or lower | 5.689 | 60.406 | 0.410 | 39.184 | 60.611 | | Two-tone | 46.485 | 51.190 | 0.369 | 48.441 | 51.375 | | Monotone | 5.151 | 48.546 | 1.785 | 49.669 | 49.439 | | Paired | 17.334 | 58.362 | 1.139 | 40.499 | 58.932 | 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, 77 changes by -13.58 points (baseline 66.24%) and T9o by -4.19 points (baseline 51.53%). **77 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 | | --- | --- | --- | --- | --- | | 77, all flops | 52.663 | 66.236 | -13.573 | 0.79508 | | 77, rainbow, ten or higher | 49.609 | 66.236 | -16.627 | 0.74897 | | 77, rainbow, nine or lower | 60.611 | 66.236 | -5.625 | 0.91508 | | 77, two-tone | 51.375 | 66.236 | -14.861 | 0.77564 | | 77, monotone | 49.439 | 66.236 | -16.797 | 0.74641 | | 77, paired | 58.932 | 66.236 | -7.304 | 0.88973 | | T9o, all flops | 47.337 | 51.532 | -4.195 | 0.91859 | | T9o, rainbow, ten or higher | 50.391 | 51.532 | -1.141 | 0.97786 | | T9o, rainbow, nine or lower | 39.389 | 51.532 | -12.143 | 0.76436 | | T9o, two-tone | 48.625 | 51.532 | -2.907 | 0.94359 | | T9o, monotone | 50.561 | 51.532 | -0.971 | 0.98116 | | T9o, paired | 41.068 | 51.532 | -10.464 | 0.79694 | ## Does a shared suit matter? Split by suits, the deals give 77 52.57% when the hands overlap in a suit and 53.12% when they do not. 77 does better with no shared suit, by 0.55 points. **77 against T9o by suit overlap, in percent** | Deals | Specific deals | Share of deals | 77 wins | Ties | T9o wins | 77 equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 60 | 83.33 | 52.274 | 0.595 | 47.131 | 52.571 | | No shared suit | 12 | 16.67 | 52.871 | 0.501 | 46.628 | 53.121 | ## 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 Say each player puts $100 in before the flop, making a $200 pot. On average 77 takes back $105.32 of it, which is $5.32 more than it put in, and T9o takes back $94.68, $5.32 less than it put in. Out of 1,000 deals you should see around 524 outright wins for 77, 470 for T9o, and 6 split pots. ## The same matchup from the other side The reversed view, T9o against 77, shows 47.34% for T9o and 52.66% for 77. It is the same count, so it redirects here. ## Keep exploring The calculator link fills in 7s7h 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 7s7h against Td9c in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=7s7h&p2=Td9c) - [77 combos](https://georgelipoker.com/combos/77.md) - [T9o combos](https://georgelipoker.com/combos/t9o.md) - [77 vs 98s](https://georgelipoker.com/equity/77-vs-98s.md) - [77 vs 22](https://georgelipoker.com/equity/77-vs-22.md) - [AQs vs T9o](https://georgelipoker.com/equity/aqs-vs-t9o.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 72 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [77 vs 98s: preflop equity](https://georgelipoker.com/equity/77-vs-98s.md) - [77 vs 22: preflop equity](https://georgelipoker.com/equity/77-vs-22.md) - [AQs vs T9o: preflop equity](https://georgelipoker.com/equity/aqs-vs-t9o.md)