99
67.40%
Wins 67.21%, ties 0.38%
A7s
32.60%
Wins 32.41%, ties 0.38%
99 against A7s: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| 99 | 67.214 | 0.378 | 32.408 | 67.403 |
| A7s | 32.408 | 0.378 | 67.214 | 32.597 |
Here a pocket pair (99) meets a suited hand (A7s). The pair is ahead of one card and behind the other, so the board decides how that plays out.
99 is well ahead, and A7s needs a specific kind of board to catch up. A split pot comes up on 0.38% of boards, so the wins and the equity differ by half of that.
Place 6 of 169 belongs to 99 and place 24 belongs to A7s in the ranking against a random hand.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| 99 | 27,622,000 | 155,000 | 13,318,000 |
| A7s | 13,318,000 | 155,000 | 27,622,000 |
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.
| Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) |
|---|---|---|---|---|
| 99 | 2.068 | 1.488 | 3.086 | 0.484 |
| A7s | 0.484 | 3.086 | 1.488 | 2.068 |
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
Split by what the flop looks like, 99 peaks at 79.03% on low rainbow flops (nine high or lower) and bottoms out at 63.10% on monotone flops. 99 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 | 99 wins | Ties | A7s wins | 99 equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 25.220 | 66.681 | 0.195 | 33.124 | 66.779 |
| Rainbow, nine or lower | 5.689 | 78.717 | 0.622 | 20.661 | 79.028 |
| Two-tone | 46.545 | 65.656 | 0.255 | 34.089 | 65.784 |
| Monotone | 5.212 | 61.917 | 2.365 | 35.718 | 63.100 |
| Paired | 17.334 | 69.986 | 0.301 | 29.713 | 70.137 |
A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank.
Compared with a random hand
A random hand would give 99 72.06% and A7s 60.98%. Against each other the change is -4.66 points for 99 and -28.38 for A7s.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| 99, all flops | 67.403 | 72.057 | -4.654 | 0.93541 |
| 99, rainbow, ten or higher | 66.779 | 72.057 | -5.278 | 0.92675 |
| 99, rainbow, nine or lower | 79.028 | 72.057 | +6.971 | 1.09674 |
| 99, two-tone | 65.784 | 72.057 | -6.273 | 0.91294 |
| 99, monotone | 63.100 | 72.057 | -8.957 | 0.87570 |
| 99, paired | 70.137 | 72.057 | -1.920 | 0.97335 |
| A7s, all flops | 32.597 | 60.984 | -28.387 | 0.53452 |
| A7s, rainbow, ten or higher | 33.221 | 60.984 | -27.763 | 0.54475 |
| A7s, rainbow, nine or lower | 20.972 | 60.984 | -40.012 | 0.34389 |
| A7s, two-tone | 34.216 | 60.984 | -26.768 | 0.56107 |
| A7s, monotone | 36.900 | 60.984 | -24.084 | 0.60508 |
| A7s, paired | 29.863 | 60.984 | -31.121 | 0.48969 |
Does a shared suit matter?
Looking only at deals where the hands share a suit, 99 has 67.69%; looking only at deals where they do not, 67.12%. 99 does better with a shared suit, by 0.57 points.
| Deals | Specific deals | Share of deals | 99 wins | Ties | A7s wins | 99 equity |
|---|---|---|---|---|---|---|
| Share a suit | 12 | 50.00 | 67.475 | 0.421 | 32.104 | 67.686 |
| No shared suit | 12 | 50.00 | 66.952 | 0.336 | 32.712 | 67.120 |
How often this matchup comes up
99 against A7s 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
Put $100 each into a $200 pot and deal every board once: 99 averages $134.80 back, ahead of its $100 by $34.80, while A7s averages $65.20, short of its $100 by $34.80.
Out of 1,000 deals you should see around 672 outright wins for 99, 324 for A7s, and 4 split pots.
The same matchup from the other side
The reversed view, A7s against 99, shows 32.60% for A7s and 67.40% for 99. It is the same count, so it redirects here.
Keep exploring
Open the calculator with 9s9h against Ad7d 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.
How this was computed
Method: exact enumeration. The 24 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.
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