K9s
69.23%
Wins 67.84%, ties 2.77%
J9s
30.77%
Wins 29.39%, ties 2.77%
K9s against J9s: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| K9s | 67.840 | 2.773 | 29.387 | 69.226 |
| J9s | 29.387 | 2.773 | 67.840 | 30.774 |
Here suited hands face each other, K9s on one side and J9s on the other. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up.
That is a clear edge, 69.23% to 30.77%, but J9s still wins often enough that one hand proves nothing. The tie share is 2.77%: on those boards the pot is chopped and neither hand wins outright.
K9s ranks number 29 of 169 starting hands, and J9s ranks number 55, by equity against a random hand.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| K9s | 13,940,000 | 570,000 | 6,038,000 |
| J9s | 6,038,000 | 570,000 | 13,940,000 |
The total is exact: 12 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) |
|---|---|---|---|---|
| K9s | 2.249 | 1.474 | 3.403 | 0.445 |
| J9s | 0.445 | 3.403 | 1.474 | 2.249 |
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
The flop changes the picture. K9s does best on low rainbow flops (nine high or lower), at 80.65%, and worst on monotone flops, at 62.73%. K9s 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 | K9s wins | Ties | J9s wins | K9s equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 24.595 | 66.844 | 2.123 | 31.033 | 67.905 |
| Rainbow, nine or lower | 6.314 | 78.818 | 3.656 | 17.526 | 80.646 |
| Two-tone | 46.543 | 66.833 | 2.181 | 30.986 | 67.924 |
| Monotone | 5.215 | 60.439 | 4.581 | 34.980 | 62.730 |
| Paired | 17.333 | 70.185 | 4.418 | 25.397 | 72.394 |
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
A random hand would give K9s 59.99% and J9s 55.66%. Against each other the change is +9.24 points for K9s and -24.89 for J9s.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| K9s, all flops | 69.226 | 59.988 | +9.238 | 1.15400 |
| K9s, rainbow, ten or higher | 67.905 | 59.988 | +7.917 | 1.13198 |
| K9s, rainbow, nine or lower | 80.646 | 59.988 | +20.658 | 1.34437 |
| K9s, two-tone | 67.924 | 59.988 | +7.936 | 1.13229 |
| K9s, monotone | 62.730 | 59.988 | +2.742 | 1.04571 |
| K9s, paired | 72.394 | 59.988 | +12.406 | 1.20681 |
| J9s, all flops | 30.774 | 55.662 | -24.888 | 0.55287 |
| J9s, rainbow, ten or higher | 32.095 | 55.662 | -23.567 | 0.57661 |
| J9s, rainbow, nine or lower | 19.354 | 55.662 | -36.308 | 0.34771 |
| J9s, two-tone | 32.076 | 55.662 | -23.586 | 0.57626 |
| J9s, monotone | 37.270 | 55.662 | -18.392 | 0.66958 |
| J9s, paired | 27.606 | 55.662 | -28.056 | 0.49596 |
Does a shared suit matter?
A shared suit is impossible for this matchup, so K9s' 69.23% is the answer for every suit pattern.
| Deals | Specific deals | Share of deals | K9s wins | Ties | J9s wins | K9s equity |
|---|---|---|---|---|---|---|
| Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible |
| No shared suit | 12 | 100.00 | 67.840 | 2.773 | 29.387 | 69.226 |
How often this matchup comes up
Exactly 12 specific deals fit this matchup in one seat order, which is 0.0007% of 1,624,350; both orders together give 24, or 0.0015%.
A worked example
Put $100 each into a $200 pot and deal every board once: K9s averages $138.46 back, ahead of its $100 by $38.46, while J9s averages $61.54, short of its $100 by $38.46.
Over a long run, 1,000 deals split into about 678 for K9s, 294 for J9s and 28 tied.
The same matchup from the other side
The reversed view, J9s against K9s, shows 30.77% for J9s and 69.23% for K9s. It is the same count, so it redirects here.
Keep exploring
Try Ks9s against Jh9h 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
Each figure is a complete count over boards. Take the 12 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.
Bring your own hands to a session
Review the spots you actually play against these numbers in a Game Assessment, and leave with a one-page written plan.
Book a session