99
81.56%
Wins 81.23%, ties 0.66%
77
18.44%
Wins 18.11%, ties 0.66%
99 against 77: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| 99 | 81.231 | 0.656 | 18.113 | 81.559 |
| 77 | 18.113 | 0.656 | 81.231 | 18.441 |
The matchup is pocket pairs on both sides, 99 against 77. A pair against a smaller pair is the classic crush: the smaller pair needs one of its two remaining cards to make a set.
99 is a big favorite here before anyone sees a flop. 0.66% of boards are ties, so the equity of each hand is its win rate plus half of that.
In the ranking of all 169 starting hands, 99 is number 6 and 77 is number 9.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| 99 | 50,073,000 | 404,000 | 11,165,000 |
| 77 | 11,165,000 | 404,000 | 50,073,000 |
The board total is exact, 36 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.
| Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) |
|---|---|---|---|---|
| 99 | 4.423 | 1.231 | 5.521 | 0.226 |
| 77 | 0.226 | 5.521 | 1.231 | 4.423 |
The final column gives the least the pot must offer for each unit called for a call to break even at this equity.
Who is ahead on which flops
Across the five flop textures 99's equity moves by 14.08 points, from 72.13% on low rainbow flops (nine high or lower) to 86.21% on paired flops. 99 stays ahead on all five textures.
| Flop | Share of flops | 99 wins | Ties | 77 wins | 99 equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 25.844 | 82.823 | 0.405 | 16.772 | 83.025 |
| Rainbow, nine or lower | 5.065 | 71.850 | 0.565 | 27.585 | 72.132 |
| Two-tone | 46.363 | 80.428 | 0.419 | 19.153 | 80.637 |
| Monotone | 5.152 | 74.998 | 1.831 | 23.171 | 75.913 |
| Paired | 17.576 | 85.539 | 1.334 | 13.127 | 86.206 |
Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank.
Compared with a random hand
Compared with a random opponent, this matchup shifts 99 from 72.06% by +9.50 points and 77 from 66.24% by -47.80 points.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| 99, all flops | 81.559 | 72.057 | +9.502 | 1.13187 |
| 99, rainbow, ten or higher | 83.025 | 72.057 | +10.968 | 1.15221 |
| 99, rainbow, nine or lower | 72.132 | 72.057 | +0.075 | 1.00104 |
| 99, two-tone | 80.637 | 72.057 | +8.580 | 1.11907 |
| 99, monotone | 75.913 | 72.057 | +3.856 | 1.05351 |
| 99, paired | 86.206 | 72.057 | +14.149 | 1.19636 |
| 77, all flops | 18.441 | 66.236 | -47.795 | 0.27841 |
| 77, rainbow, ten or higher | 16.975 | 66.236 | -49.261 | 0.25628 |
| 77, rainbow, nine or lower | 27.868 | 66.236 | -38.368 | 0.42074 |
| 77, two-tone | 19.363 | 66.236 | -46.873 | 0.29233 |
| 77, monotone | 24.087 | 66.236 | -42.149 | 0.36365 |
| 77, paired | 13.794 | 66.236 | -52.442 | 0.20826 |
Does a shared suit matter?
Two kinds of deal exist here. In 30 of them the hands share a suit and 99 holds 81.70%. In 6 they do not, and it holds 80.88%. 99 does better with a shared suit, by 0.82 points.
| Deals | Specific deals | Share of deals | 99 wins | Ties | 77 wins | 99 equity |
|---|---|---|---|---|---|---|
| Share a suit | 30 | 83.33 | 81.360 | 0.672 | 17.968 | 81.696 |
| No shared suit | 6 | 16.67 | 80.587 | 0.578 | 18.835 | 80.876 |
How often this matchup comes up
The class pair covers 36 combinations of specific cards in a fixed seat order, 0.0022% of 1,624,350, and 72 (0.0044%) in either order.
A worked example
To see what the equity is worth, imagine $100 each in a $200 pot. 99 is worth $163.12 on average (+$63.12); 77 is worth $36.88 (-$63.12).
A thousand deals look like this: 99 takes 812, 77 takes 181, 7 are ties.
The same matchup from the other side
Swap the hands and you get 77 with 18.44% against 99 with 81.56%. We keep one page per matchup, with the better-ranked hand first.
Keep exploring
9s9h against 7d7c 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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