--- title: "77 vs JTo: preflop equity" url: "https://georgelipoker.com/equity/77-vs-jto.md" canonical_url: "https://georgelipoker.com/equity/77-vs-jto" last_updated: "2026-10-23" type: "reference" summary: "77 vs JTo is close to a coin flip before the flop: 51.72% to 48.28% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/77-vs-t9s.md", "https://georgelipoker.com/equity/77-vs-33.md", "https://georgelipoker.com/equity/aqs-vs-jto.md"] --- # 77 vs JTo: preflop equity 77 vs JTo is close to a coin flip before the flop: 51.72% to 48.28% equity, counted exactly over every board, with the split by flop type and suit. Over all 1,712,304 boards that can follow this deal, 77 finishes with 51.72% of the pot and JTo with 48.28%. ## 77 against JTo: the numbers **Exact preflop results for 77 against JTo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 77 | 51.468 | 0.500 | 48.032 | 51.718 | | JTo | 48.032 | 0.500 | 51.468 | 48.282 | The first hand is a pocket pair; the second is an offsuit hand. This is a pair against two overcards, a matchup that stays close because the other hand only needs one of its ranks to appear. This is close to even money, with 77 a little ahead. About 0.50% of boards chop the pot, which is why equity sits slightly above the win figure for both hands. Place 9 of 169 belongs to 77 and place 57 belongs to JTo in the ranking 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 | 63,453,000 | 616,000 | 59,217,000 | | JTo | 59,217,000 | 616,000 | 63,453,000 | 72 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand. **77 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) | | --- | --- | --- | --- | --- | | 77 | 1.071 | 1.943 | 2.082 | 0.934 | | JTo | 0.934 | 2.082 | 1.943 | 1.071 | 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 Across the five flop textures 77's equity moves by 32.08 points, from 44.14% on rainbow flops topped by a ten or better to 76.22% on low rainbow flops (nine high or lower). The overall edge for 77 hides rainbow flops topped by a ten or better and monotone flops, where JTo comes out in front. **77 against JTo by flop texture, in percent** | Flop | Share of flops | 77 wins | Ties | JTo wins | 77 equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.717 | 43.987 | 0.305 | 55.708 | 44.139 | | Rainbow, nine or lower | 6.314 | 75.963 | 0.507 | 23.530 | 76.217 | | Two-tone | 46.485 | 50.292 | 0.334 | 49.374 | 50.459 | | Monotone | 5.151 | 47.951 | 1.748 | 50.301 | 48.825 | | Paired | 17.333 | 57.411 | 0.849 | 41.740 | 57.836 | 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 Each hand has a baseline against a random hand: 66.24% for 77, 55.25% for JTo. Here the change is -14.52 and -6.97 points. **77 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 | | --- | --- | --- | --- | --- | | 77, all flops | 51.718 | 66.236 | -14.518 | 0.78081 | | 77, rainbow, ten or higher | 44.139 | 66.236 | -22.097 | 0.66639 | | 77, rainbow, nine or lower | 76.217 | 66.236 | +9.981 | 1.15069 | | 77, two-tone | 50.459 | 66.236 | -15.777 | 0.76181 | | 77, monotone | 48.825 | 66.236 | -17.411 | 0.73714 | | 77, paired | 57.836 | 66.236 | -8.400 | 0.87318 | | JTo, all flops | 48.282 | 55.248 | -6.966 | 0.87391 | | JTo, rainbow, ten or higher | 55.861 | 55.248 | +0.613 | 1.01110 | | JTo, rainbow, nine or lower | 23.783 | 55.248 | -31.465 | 0.43048 | | JTo, two-tone | 49.541 | 55.248 | -5.707 | 0.89670 | | JTo, monotone | 51.175 | 55.248 | -4.073 | 0.92628 | | JTo, paired | 42.164 | 55.248 | -13.084 | 0.76318 | ## Does a shared suit matter? Suit overlap shows up in the numbers. With a suit in common 77 has 51.63% equity, and with none in common it has 52.18%. 77 does better with no shared suit, by 0.55 points. **77 against JTo by suit overlap, in percent** | Deals | Specific deals | Share of deals | 77 wins | Ties | JTo wins | 77 equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 60 | 83.33 | 51.367 | 0.516 | 48.117 | 51.625 | | No shared suit | 12 | 16.67 | 51.969 | 0.421 | 47.610 | 52.179 | ## How often this matchup comes up Counting specific cards, 77 against JTo appears in 72 of the 1,624,350 ordered heads-up deals (0.0044%), and in 144 when the seats are swapped too (0.0089%). ## A worked example Try it with money: two players each put in $100 and the whole board runs out every possible way. 77 averages $103.44 from the $200, up $3.44; JTo averages $96.56, down $3.44. Run 1,000 deals and the tally comes out near 515 for 77, 480 for JTo and 5 ties. ## The same matchup from the other side Read it from the other side: JTo against 77 is the same matchup with the numbers swapped, so JTo holds 48.28% and 77 holds 51.72%. That address sends you back to this page. ## Keep exploring The calculator link fills in 7s7h against JdTc, 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 JdTc in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=7s7h&p2=JdTc) - [77 combos](https://georgelipoker.com/combos/77.md) - [JTo combos](https://georgelipoker.com/combos/jto.md) - [77 vs T9s](https://georgelipoker.com/equity/77-vs-t9s.md) - [77 vs 33](https://georgelipoker.com/equity/77-vs-33.md) - [AQs vs JTo](https://georgelipoker.com/equity/aqs-vs-jto.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 - [77 vs T9s: preflop equity](https://georgelipoker.com/equity/77-vs-t9s.md) - [77 vs 33: preflop equity](https://georgelipoker.com/equity/77-vs-33.md) - [AQs vs JTo: preflop equity](https://georgelipoker.com/equity/aqs-vs-jto.md)