KK
68.07%
Wins 67.87%, ties 0.39%
A8s
31.93%
Wins 31.74%, ties 0.39%
KK against A8s: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| KK | 67.873 | 0.394 | 31.733 | 68.070 |
| A8s | 31.733 | 0.394 | 67.873 | 31.930 |
KK and A8s are a pocket pair and a suited hand, in that order. The pair sits between the other hand's two cards: one is higher and one is lower, so the pair is exposed to the higher card.
KK is well ahead, and A8s needs a specific kind of board to catch up. Of every 100 boards, about 0.39 are split pots, and the equity figures already include them.
For context, KK sits at number 2 of 169 starting hands and A8s at number 21 when each is run against a random hand.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| KK | 27,893,000 | 162,000 | 13,041,000 |
| A8s | 13,041,000 | 162,000 | 27,893,000 |
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) |
|---|---|---|---|---|
| KK | 2.132 | 1.473 | 3.151 | 0.469 |
| A8s | 0.469 | 3.151 | 1.473 | 2.132 |
The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity.
Who is ahead on which flops
Break the boards down by their first three cards and KK is strongest on low rainbow flops (nine high or lower) (76.42%) and weakest on monotone flops (63.50%). KK stays ahead on all five textures.
| Flop | Share of flops | KK wins | Ties | A8s wins | KK equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 23.867 | 67.431 | 0.178 | 32.391 | 67.520 |
| Rainbow, nine or lower | 7.042 | 75.927 | 0.980 | 23.093 | 76.417 |
| Two-tone | 46.545 | 66.102 | 0.333 | 33.565 | 66.269 |
| Monotone | 5.212 | 62.294 | 2.416 | 35.290 | 63.502 |
| Paired | 17.334 | 71.644 | 0.010 | 28.346 | 71.649 |
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
Relative to a random opponent, KK changes by -14.33 points (baseline 82.40%) and A8s by -30.01 points (baseline 61.94%).
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| KK, all flops | 68.070 | 82.396 | -14.326 | 0.82613 |
| KK, rainbow, ten or higher | 67.520 | 82.396 | -14.876 | 0.81946 |
| KK, rainbow, nine or lower | 76.417 | 82.396 | -5.979 | 0.92744 |
| KK, two-tone | 66.269 | 82.396 | -16.127 | 0.80427 |
| KK, monotone | 63.502 | 82.396 | -18.894 | 0.77069 |
| KK, paired | 71.649 | 82.396 | -10.747 | 0.86957 |
| A8s, all flops | 31.930 | 61.944 | -30.014 | 0.51547 |
| A8s, rainbow, ten or higher | 32.480 | 61.944 | -29.464 | 0.52434 |
| A8s, rainbow, nine or lower | 23.583 | 61.944 | -38.361 | 0.38071 |
| A8s, two-tone | 33.731 | 61.944 | -28.213 | 0.54454 |
| A8s, monotone | 36.498 | 61.944 | -25.446 | 0.58921 |
| A8s, paired | 28.351 | 61.944 | -33.593 | 0.45769 |
Does a shared suit matter?
Looking only at deals where the hands share a suit, KK has 68.37%; looking only at deals where they do not, 67.77%. KK does better with a shared suit, by 0.60 points.
| Deals | Specific deals | Share of deals | KK wins | Ties | A8s wins | KK equity |
|---|---|---|---|---|---|---|
| Share a suit | 12 | 50.00 | 68.152 | 0.435 | 31.413 | 68.370 |
| No shared suit | 12 | 50.00 | 67.594 | 0.354 | 32.052 | 67.771 |
How often this matchup comes up
You will meet this exact matchup 0.0030% of the time in a random heads-up deal: 48 of 1,624,350, counting either seat order.
A worked example
Worked example: both players commit $100, so $200 sits in the middle. Over every board, KK's average share is $136.14 (a gain of $36.14) and A8s' is $63.86 (a loss of $36.14).
In 1,000 deals of exactly this matchup, expect about 679 won outright by KK, about 317 won outright by A8s and about 4 split.
The same matchup from the other side
The mirror image, A8s against KK, is 31.93% to 68.07%, and its address redirects to this page.
Keep exploring
Open the calculator with KsKh against Ad8d 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
The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 24 specific deals, with both seven-card hands compared each time. Equity gives half a win for a tie. For the flop rows, a board is counted once under each of the ten flops inside it.
Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used.
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