--- title: "66 vs QTs: preflop equity" url: "https://georgelipoker.com/equity/66-vs-qts.md" canonical_url: "https://georgelipoker.com/equity/66-vs-qts" last_updated: "2026-10-23" type: "reference" summary: "66 vs QTs is close to a coin flip before the flop: 49.55% to 50.46% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/66-vs-a4s.md", "https://georgelipoker.com/equity/66-vs-a3s.md", "https://georgelipoker.com/equity/a9s-vs-qts.md"] --- # 66 vs QTs: preflop equity 66 vs QTs is close to a coin flip before the flop: 49.55% to 50.46% 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, QTs finishes with 50.45% of the pot and 66 with 49.55%. ## 66 against QTs: the numbers **Exact preflop results for 66 against QTs, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 66 | 49.276 | 0.539 | 50.185 | 49.545 | | QTs | 50.185 | 0.539 | 49.276 | 50.455 | We compare a pocket pair with a suited hand. 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. That is a slim edge: neither hand is far ahead. A split pot comes up on 0.54% of boards, so the wins and the equity differ by half of that. Ranked by equity against a random hand, 66 is number 17 of the 169 starting hands and QTs is number 34. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | 66 | 20,250,000 | 222,000 | 20,624,000 | | QTs | 20,624,000 | 222,000 | 20,250,000 | The total is exact: 24 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. **66 against QTs 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 | 0.982 | 2.029 | 1.993 | 1.018 | | QTs | 1.018 | 1.993 | 2.029 | 0.982 | 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 If you know the kind of flop that came, the numbers shift: QTs holds 57.00% on rainbow flops topped by a ten or better and 24.30% on low rainbow flops (nine high or lower). Low rainbow flops (nine high or lower) and paired flops favor 66, the hand that is behind overall. **66 against QTs by flop texture, in percent** | Flop | Share of flops | 66 wins | Ties | QTs wins | 66 equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.595 | 42.873 | 0.256 | 56.871 | 43.001 | | Rainbow, nine or lower | 6.314 | 75.422 | 0.561 | 24.017 | 75.703 | | Two-tone | 46.545 | 47.558 | 0.304 | 52.138 | 47.710 | | Monotone | 5.212 | 48.309 | 2.495 | 49.196 | 49.557 | | Paired | 17.334 | 53.741 | 0.977 | 45.282 | 54.229 | 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 Start from the random-hand figures, 63.29% for 66 and 59.47% for QTs. This opponent changes them by -13.74 and -9.02 points. **66 and QTs 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 | 49.545 | 63.285 | -13.740 | 0.78289 | | 66, rainbow, ten or higher | 43.001 | 63.285 | -20.284 | 0.67948 | | 66, rainbow, nine or lower | 75.703 | 63.285 | +12.418 | 1.19622 | | 66, two-tone | 47.710 | 63.285 | -15.575 | 0.75389 | | 66, monotone | 49.557 | 63.285 | -13.728 | 0.78308 | | 66, paired | 54.229 | 63.285 | -9.056 | 0.85690 | | QTs, all flops | 50.455 | 59.468 | -9.013 | 0.84844 | | QTs, rainbow, ten or higher | 56.999 | 59.468 | -2.469 | 0.95848 | | QTs, rainbow, nine or lower | 24.297 | 59.468 | -35.171 | 0.40857 | | QTs, two-tone | 52.290 | 59.468 | -7.178 | 0.87930 | | QTs, monotone | 50.443 | 59.468 | -9.025 | 0.84824 | | QTs, paired | 45.771 | 59.468 | -13.697 | 0.76967 | ## Does a shared suit matter? Suit overlap shows up in the numbers. With a suit in common QTs has 50.31% equity, and with none in common it has 50.60%. QTs does better with no shared suit, by 0.29 points. **66 against QTs by suit overlap, in percent** | Deals | Specific deals | Share of deals | 66 wins | Ties | QTs wins | 66 equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 12 | 50.00 | 49.400 | 0.582 | 50.018 | 49.691 | | No shared suit | 12 | 50.00 | 49.151 | 0.496 | 50.353 | 49.399 | ## How often this matchup comes up 66 against QTs is made up of 24 specific-card matchups in one seat order, 0.0015% of the 1,624,350 ordered deals, and 48 counting both seat orders, 0.0030%. ## A worked example Say each player puts $100 in before the flop, making a $200 pot. On average QTs takes back $100.90 of it, which is $0.90 more than it put in, and 66 takes back $99.10, $0.90 less than it put in. Over a long run, 1,000 deals split into about 502 for QTs, 493 for 66 and 5 tied. ## The same matchup from the other side The reversed view, QTs against 66, shows 50.45% for QTs and 49.55% for 66. It is the same count, so it redirects here. ## Keep exploring Try 6s6h against QdTd 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 6s6h against QdTd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=6s6h&p2=QdTd) - [66 combos](https://georgelipoker.com/combos/66.md) - [QTs combos](https://georgelipoker.com/combos/qts.md) - [66 vs A4s](https://georgelipoker.com/equity/66-vs-a4s.md) - [66 vs A3s](https://georgelipoker.com/equity/66-vs-a3s.md) - [A9s vs QTs](https://georgelipoker.com/equity/a9s-vs-qts.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Nothing here is simulated. The 24 deals of 66 against QTs fall into a few suit patterns, each dealt against all 1,712,304 boards, with both best five-card hands compared on every board. Ties give each hand half a win, and the flop rows count a board under each of its ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [66 vs A4s: preflop equity](https://georgelipoker.com/equity/66-vs-a4s.md) - [66 vs A3s: preflop equity](https://georgelipoker.com/equity/66-vs-a3s.md) - [A9s vs QTs: preflop equity](https://georgelipoker.com/equity/a9s-vs-qts.md)