KJs
45.30%
Wins 45.08%, ties 0.46%
A9o
54.70%
Wins 54.46%, ties 0.46%
KJs against A9o: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| KJs | 45.075 | 0.456 | 54.469 | 45.303 |
| A9o | 54.469 | 0.456 | 45.075 | 54.697 |
The matchup pits a suited hand against an offsuit hand. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.
With only 9.40 points between them, the board decides this matchup far more than the cards in hand. A split pot comes up on 0.46% of boards, so the wins and the equity differ by half of that.
In the ranking of all 169 starting hands, KJs is number 20 and A9o is number 25.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| KJs | 37,047,000 | 375,000 | 44,768,000 |
| A9o | 44,768,000 | 375,000 | 37,047,000 |
Exact total: 48 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) |
|---|---|---|---|---|
| KJs | 0.828 | 2.219 | 1.836 | 1.207 |
| A9o | 1.207 | 1.836 | 2.219 | 0.828 |
In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity.
Who is ahead on which flops
The flop changes the picture. A9o does best on low rainbow flops (nine high or lower), at 73.06%, and worst on rainbow flops topped by a ten or better, at 49.93%. The overall edge for A9o hides rainbow flops topped by a ten or better, where KJs comes out in front.
| Flop | Share of flops | KJs wins | Ties | A9o wins | KJs equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 23.988 | 50.012 | 0.124 | 49.864 | 50.074 |
| Rainbow, nine or lower | 7.042 | 26.473 | 0.944 | 72.583 | 26.945 |
| Two-tone | 46.667 | 47.355 | 0.282 | 52.363 | 47.496 |
| Monotone | 5.212 | 46.163 | 2.375 | 51.462 | 47.351 |
| Paired | 17.091 | 39.251 | 0.612 | 60.137 | 39.557 |
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
Start from the random-hand figures, 62.57% for KJs and 60.77% for A9o. This opponent changes them by -17.27 and -6.07 points.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| KJs, all flops | 45.303 | 62.567 | -17.264 | 0.72407 |
| KJs, rainbow, ten or higher | 50.074 | 62.567 | -12.493 | 0.80033 |
| KJs, rainbow, nine or lower | 26.945 | 62.567 | -35.622 | 0.43066 |
| KJs, two-tone | 47.496 | 62.567 | -15.071 | 0.75912 |
| KJs, monotone | 47.351 | 62.567 | -15.216 | 0.75680 |
| KJs, paired | 39.557 | 62.567 | -23.010 | 0.63223 |
| A9o, all flops | 54.697 | 60.773 | -6.076 | 0.90002 |
| A9o, rainbow, ten or higher | 49.926 | 60.773 | -10.847 | 0.82152 |
| A9o, rainbow, nine or lower | 73.055 | 60.773 | +12.282 | 1.20210 |
| A9o, two-tone | 52.504 | 60.773 | -8.269 | 0.86394 |
| A9o, monotone | 52.649 | 60.773 | -8.124 | 0.86632 |
| A9o, paired | 60.443 | 60.773 | -0.330 | 0.99457 |
Does a shared suit matter?
Does suit overlap move the numbers? A9o has 55.17% when the hands share a suit and 54.23% when they do not. A9o does better with a shared suit, by 0.94 points.
| Deals | Specific deals | Share of deals | KJs wins | Ties | A9o wins | KJs equity |
|---|---|---|---|---|---|---|
| Share a suit | 24 | 50.00 | 44.585 | 0.497 | 54.918 | 44.833 |
| No shared suit | 24 | 50.00 | 45.564 | 0.415 | 54.021 | 45.772 |
How often this matchup comes up
How often does it happen? 48 of the 1,624,350 ordered deals (0.0030%) are KJs against A9o, and 96 (0.0059%) if either hand may sit in either seat.
A worked example
Worked example: both players commit $100, so $200 sits in the middle. Over every board, A9o's average share is $109.40 (a gain of $9.40) and KJs' is $90.60 (a loss of $9.40).
Over a long run, 1,000 deals split into about 545 for A9o, 451 for KJs and 4 tied.
The same matchup from the other side
Read it from the other side: A9o against KJs is the same matchup with the numbers swapped, so A9o holds 54.70% and KJs holds 45.30%. That address sends you back to this page.
Keep exploring
Try KsJs against Ah9d 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.
How this was computed
Method: exact enumeration. The 48 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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