--- title: "66 vs 97s: preflop equity" url: "https://georgelipoker.com/equity/66-vs-97s.md" canonical_url: "https://georgelipoker.com/equity/66-vs-97s" last_updated: "2026-10-23" type: "reference" summary: "66 vs 97s is close to a coin flip before the flop: 51.20% to 48.80% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/66-vs-87s.md", "https://georgelipoker.com/equity/66-vs-86s.md", "https://georgelipoker.com/equity/a9s-vs-97s.md"] --- # 66 vs 97s: preflop equity 66 vs 97s is close to a coin flip before the flop: 51.20% to 48.80% equity, counted exactly over every board, with the split by flop type and suit. If 66 and 97s get all the chips in before the flop, 66 owns 51.20% of the pot in the long run and 97s owns 48.80%. ## 66 against 97s: the numbers **Exact preflop results for 66 against 97s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 66 | 50.764 | 0.875 | 48.361 | 51.202 | | 97s | 48.361 | 0.875 | 50.764 | 48.798 | Here a pocket pair (66) meets a suited hand (97s). This is a pair against two overcards, a matchup that stays close because the other hand only needs one of its ranks to appear. 66 leads by less than 3 points of equity, so the result of any one deal is close to a toss-up. Of every 100 boards, about 0.88 are split pots, and the equity figures already include them. By strength against a random hand, 66 holds place 17 of 169 and 97s holds place 94. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | 66 | 20,862,000 | 360,000 | 19,874,000 | | 97s | 19,874,000 | 360,000 | 20,862,000 | Exact total: 24 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. **66 against 97s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | 66 | 1.049 | 1.970 | 2.068 | 0.953 | | 97s | 0.953 | 2.068 | 1.970 | 1.049 | 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 By flop texture, 66's equity runs from 47.03% on low rainbow flops (nine high or lower) up to 56.48% on paired flops. The lead reverses on low rainbow flops (nine high or lower) and two-tone flops: there 97s is the favorite even though 66 is ahead overall. **66 against 97s by flop texture, in percent** | Flop | Share of flops | 66 wins | Ties | 97s wins | 66 equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.844 | 51.935 | 0.531 | 47.534 | 52.200 | | Rainbow, nine or lower | 5.065 | 46.857 | 0.349 | 52.794 | 47.031 | | Two-tone | 46.545 | 48.983 | 0.477 | 50.540 | 49.222 | | Monotone | 5.212 | 49.111 | 2.631 | 48.258 | 50.427 | | Paired | 17.334 | 55.441 | 2.080 | 42.479 | 56.481 | 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, 66 changes by -12.09 points (baseline 63.29%) and 97s by -0.32 points (baseline 49.12%). **66 and 97s 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 | | --- | --- | --- | --- | --- | | 66, all flops | 51.202 | 63.285 | -12.083 | 0.80907 | | 66, rainbow, ten or higher | 52.200 | 63.285 | -11.085 | 0.82484 | | 66, rainbow, nine or lower | 47.031 | 63.285 | -16.254 | 0.74316 | | 66, two-tone | 49.222 | 63.285 | -14.063 | 0.77778 | | 66, monotone | 50.427 | 63.285 | -12.858 | 0.79682 | | 66, paired | 56.481 | 63.285 | -6.804 | 0.89249 | | 97s, all flops | 48.798 | 49.118 | -0.320 | 0.99349 | | 97s, rainbow, ten or higher | 47.800 | 49.118 | -1.318 | 0.97317 | | 97s, rainbow, nine or lower | 52.969 | 49.118 | +3.851 | 1.07840 | | 97s, two-tone | 50.778 | 49.118 | +1.660 | 1.03380 | | 97s, monotone | 49.573 | 49.118 | +0.455 | 1.00926 | | 97s, paired | 43.519 | 49.118 | -5.599 | 0.88601 | ## Does a shared suit matter? Of the deals of this matchup, 12 share a suit (66 at 51.32%) and 12 do not (51.09%). The two rows differ by only 0.23 points, so suits barely change this matchup. **66 against 97s by suit overlap, in percent** | Deals | Specific deals | Share of deals | 66 wins | Ties | 97s wins | 66 equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 50.861 | 0.913 | 48.226 | 51.317 | | No shared suit | 12 | 50.00 | 50.668 | 0.836 | 48.496 | 51.086 | ## How often this matchup comes up This page stands for 24 specific-card matchups (0.0015% of 1,624,350 ordered deals), or 48 once you count the seats both ways (0.0030%). ## A worked example Take a $200 pot built from $100 each. 66's equity of 51.20% is worth $102.40, a $2.40 edge, and 97s' 48.80% is worth $97.60, which is $2.40 under its stake. Run 1,000 deals and the tally comes out near 508 for 66, 483 for 97s and 9 ties. ## The same matchup from the other side The mirror image, 97s against 66, is 48.80% to 51.20%, and its address redirects to this page. ## Keep exploring The calculator link fills in 6s6h against 9d7d, 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 6s6h against 9d7d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=6s6h&p2=9d7d) - [66 combos](https://georgelipoker.com/combos/66.md) - [97s combos](https://georgelipoker.com/combos/97s.md) - [66 vs 87s](https://georgelipoker.com/equity/66-vs-87s.md) - [66 vs 86s](https://georgelipoker.com/equity/66-vs-86s.md) - [A9s vs 97s](https://georgelipoker.com/equity/a9s-vs-97s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 24 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 - [66 vs 87s: preflop equity](https://georgelipoker.com/equity/66-vs-87s.md) - [66 vs 86s: preflop equity](https://georgelipoker.com/equity/66-vs-86s.md) - [A9s vs 97s: preflop equity](https://georgelipoker.com/equity/a9s-vs-97s.md)