80.53%
Wins 80.36%, ties 0.34%
66
19.47%
Wins 19.30%, ties 0.34%
QQ against 66: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| 80.355 | 0.343 | 19.302 | 80.527 | |
| 66 | 19.302 | 0.343 | 80.355 | 19.473 |
Two pocket pairs meet here: QQ against 66. Two pairs against each other is a one-way street: the lower pair needs one of its two remaining cards.
QQ is a big favorite here before anyone sees a flop. Split pots make up 0.34% of the boards, and both equity figures count them as half a win each.
For context, QQ sits at number 3 of 169 starting hands and 66 at number 17 when each is run against a random hand.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| 49,533,000 | 211,000 | 11,898,000 | |
| 66 | 11,898,000 | 211,000 | 49,533,000 |
Exact total: 36 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.
| Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) |
|---|---|---|---|---|
| 4.135 | 1.244 | 5.181 | 0.242 | |
| 66 | 0.242 | 5.181 | 1.244 | 4.135 |
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
The flop changes the picture. QQ does best on paired flops, at 86.40%, and worst on low rainbow flops (nine high or lower), at 65.07%. QQ stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.
| Flop | Share of flops | QQ wins | Ties | 66 wins | QQ equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 24.595 | 83.615 | 0.164 | 16.221 | 83.697 |
| Rainbow, nine or lower | 6.314 | 64.679 | 0.781 | 34.540 | 65.069 |
| Two-tone | 46.363 | 79.202 | 0.280 | 20.518 | 79.342 |
| Monotone | 5.152 | 74.105 | 1.736 | 24.159 | 74.973 |
| Paired | 17.576 | 86.302 | 0.193 | 13.505 | 86.399 |
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 79.93%, QQ changes by +0.60 points, and 66, from 63.29%, by -43.82.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| QQ, all flops | 80.527 | 79.925 | +0.602 | 1.00753 |
| QQ, rainbow, ten or higher | 83.697 | 79.925 | +3.772 | 1.04719 |
| QQ, rainbow, nine or lower | 65.069 | 79.925 | -14.856 | 0.81413 |
| QQ, two-tone | 79.342 | 79.925 | -0.583 | 0.99271 |
| QQ, monotone | 74.973 | 79.925 | -4.952 | 0.93804 |
| QQ, paired | 86.399 | 79.925 | +6.474 | 1.08100 |
| 66, all flops | 19.473 | 63.285 | -43.812 | 0.30770 |
| 66, rainbow, ten or higher | 16.303 | 63.285 | -46.982 | 0.25761 |
| 66, rainbow, nine or lower | 34.931 | 63.285 | -28.354 | 0.55196 |
| 66, two-tone | 20.658 | 63.285 | -42.627 | 0.32643 |
| 66, monotone | 25.027 | 63.285 | -38.258 | 0.39546 |
| 66, paired | 13.601 | 63.285 | -49.684 | 0.21492 |
Does a shared suit matter?
The suit split reads 80.66% for QQ with a shared suit and 79.87% without one. QQ does better with a shared suit, by 0.79 points.
| Deals | Specific deals | Share of deals | QQ wins | Ties | 66 wins | QQ equity |
|---|---|---|---|---|---|---|
| Share a suit | 30 | 83.33 | 80.479 | 0.359 | 19.162 | 80.659 |
| No shared suit | 6 | 16.67 | 79.736 | 0.265 | 19.999 | 79.869 |
How often this matchup comes up
Counting specific cards, QQ against 66 appears in 36 of the 1,624,350 ordered heads-up deals (0.0022%), and in 72 when the seats are swapped too (0.0044%).
A worked example
Put $100 each into a $200 pot and deal every board once: QQ averages $161.06 back, ahead of its $100 by $61.06, while 66 averages $38.94, short of its $100 by $61.06.
Scaled to 1,000 deals, that is roughly 804 wins for QQ, 193 for 66 and 3 chopped pots.
The same matchup from the other side
If you came looking for 66 against QQ, the numbers are the same with the hands swapped: 19.47% and 80.53%.
Keep exploring
QsQh against 6d6c is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength.
How this was computed
Each figure is a complete count over boards. Take the 36 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.
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