--- title: "JTo vs 87s: preflop equity" url: "https://georgelipoker.com/equity/jto-vs-87s.md" canonical_url: "https://georgelipoker.com/equity/jto-vs-87s" last_updated: "2026-10-23" type: "reference" summary: "JTo is a big favorite over 87s before the flop: 61.49% to 38.51% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/jto-vs-86s.md", "https://georgelipoker.com/equity/jto-vs-76s.md", "https://georgelipoker.com/equity/t9s-vs-87s.md"] --- # JTo vs 87s: preflop equity JTo is a big favorite over 87s before the flop: 61.49% to 38.51% equity, counted exactly over every board, with the split by flop type and suit. Counting every board, the equity split is 61.49% for JTo and 38.51% for 87s, so JTo leads by 22.98 points. ## JTo against 87s: the numbers **Exact preflop results for JTo against 87s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | JTo | 60.935 | 1.118 | 37.947 | 61.494 | | 87s | 37.947 | 1.118 | 60.935 | 38.506 | JTo is an offsuit hand and 87s is a suited hand. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other. The lead is steady rather than large, and the flop still has plenty of say in who wins. A split pot comes up on 1.12% of boards, so the wins and the equity differ by half of that. JTo ranks number 57 of 169 starting hands, and 87s ranks number 100, by equity against a random hand. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | JTo | 50,083,000 | 919,000 | 31,189,000 | | 87s | 31,189,000 | 919,000 | 50,083,000 | The total is exact: 48 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. **JTo against 87s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | JTo | 1.597 | 1.641 | 2.635 | 0.626 | | 87s | 0.626 | 2.635 | 1.641 | 1.597 | 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 If you know the kind of flop that came, the numbers shift: JTo holds 68.97% on rainbow flops topped by a ten or better and 39.96% on low rainbow flops (nine high or lower). Watch for low rainbow flops (nine high or lower): on those flops 87s holds the better equity. **JTo against 87s by flop texture, in percent** | Flop | Share of flops | JTo wins | Ties | 87s wins | JTo equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.717 | 68.642 | 0.646 | 30.712 | 68.965 | | Rainbow, nine or lower | 6.313 | 39.794 | 0.337 | 59.869 | 39.963 | | Two-tone | 46.667 | 59.973 | 0.551 | 39.476 | 60.249 | | Monotone | 5.212 | 58.433 | 2.602 | 38.965 | 59.734 | | Paired | 17.091 | 60.985 | 3.187 | 35.828 | 62.578 | 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 55.25%, JTo changes by +6.24 points, and 87s, from 47.94%, by -9.43. **JTo and 87s 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 | | --- | --- | --- | --- | --- | | JTo, all flops | 61.494 | 55.248 | +6.246 | 1.11305 | | JTo, rainbow, ten or higher | 68.965 | 55.248 | +13.717 | 1.24828 | | JTo, rainbow, nine or lower | 39.963 | 55.248 | -15.285 | 0.72334 | | JTo, two-tone | 60.249 | 55.248 | +5.001 | 1.09052 | | JTo, monotone | 59.734 | 55.248 | +4.486 | 1.08120 | | JTo, paired | 62.578 | 55.248 | +7.330 | 1.13267 | | 87s, all flops | 38.506 | 47.936 | -9.430 | 0.80328 | | 87s, rainbow, ten or higher | 31.035 | 47.936 | -16.901 | 0.64743 | | 87s, rainbow, nine or lower | 60.037 | 47.936 | +12.101 | 1.25244 | | 87s, two-tone | 39.751 | 47.936 | -8.185 | 0.82925 | | 87s, monotone | 40.266 | 47.936 | -7.670 | 0.83999 | | 87s, paired | 37.422 | 47.936 | -10.514 | 0.78067 | ## Does a shared suit matter? Of the deals of this matchup, 24 share a suit (JTo at 62.18%) and 24 do not (60.81%). JTo does better with a shared suit, by 1.37 points. **JTo against 87s by suit overlap, in percent** | Deals | Specific deals | Share of deals | JTo wins | Ties | 87s wins | JTo equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 61.601 | 1.160 | 37.239 | 62.181 | | No shared suit | 24 | 50.00 | 60.268 | 1.076 | 38.656 | 60.806 | ## How often this matchup comes up The class pair covers 48 combinations of specific cards in a fixed seat order, 0.0030% of 1,624,350, and 96 (0.0059%) in either order. ## A worked example A $100 all-in from each player makes a $200 pot, and the exact equity says JTo gets $122.98 of it on average and 87s gets $77.02. Over a long run, 1,000 deals split into about 609 for JTo, 380 for 87s and 11 tied. ## The same matchup from the other side 87s against JTo adds nothing new: it is 38.51% for 87s and 61.49% for JTo, the same figures reversed. ## Keep exploring Open the calculator with JsTh against 8d7d already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking. - [Open JsTh against 8d7d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=JsTh&p2=8d7d) - [JTo combos](https://georgelipoker.com/combos/jto.md) - [87s combos](https://georgelipoker.com/combos/87s.md) - [JTo vs 86s](https://georgelipoker.com/equity/jto-vs-86s.md) - [JTo vs 76s](https://georgelipoker.com/equity/jto-vs-76s.md) - [T9s vs 87s](https://georgelipoker.com/equity/t9s-vs-87s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Method: exact enumeration. The 48 specific deals are grouped by suit pattern, each is run against all 1,712,304 boards, and both seven-card hands are scored. Equity adds half of every tie, and flop textures are tallied over the ten flops inside each board. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [JTo vs 86s: preflop equity](https://georgelipoker.com/equity/jto-vs-86s.md) - [JTo vs 76s: preflop equity](https://georgelipoker.com/equity/jto-vs-76s.md) - [T9s vs 87s: preflop equity](https://georgelipoker.com/equity/t9s-vs-87s.md)