KK vs KJ: Odds & Interactive Calculator
| Hand | Win | Tie | Equity |
|---|---|---|---|
| KK (Pocket Kings) | 89.0% | 1.2% | 89.6% |
| KJ (King-Jack) | 9.8% | 1.2% | 10.4% |
Suited vs offsuit: KJ
| Matchup | Win | Tie | Equity |
|---|---|---|---|
| KJs | 13.7% | 1.2% | 14.3% |
| KJo | 8.5% | 1.2% | 9.1% |
How KK vs KJ unfolds by street
Pocket Kings (KK) is still ahead on 98% of flops against KJ, and the lead survives to the turn on 95%. KJ takes the lead on the other 2% of flops, almost always by flopping a set. These figures come from full board enumeration, not a simulation.
| Street | KK still ahead | KJ flipped the lead |
|---|---|---|
| Flop | 98% | 2% |
| Turn | 95% | 5% |
KK vs KJ mixes a pair with an overlapping overcard, so an out on each side is already in someone's hand. KK wins 89.0%, KJ wins 9.8%, and 1.2% of boards chop. That blocking effect is why KK is a firmer 9.1-to-1 favorite than a straight pair-vs-two-overcards race.
Translate that into a decision and it's simple pot-odds math: counting split pots as half, KK carries 89.6% equity and KJ 10.4%. Against a pot-sized shove you need about 33% to call and about 25% versus a half-pot bet — so KJ needs real fold equity, not just its raw share, to justify stacking off.
How you play KK vs KJ depends on which side you hold. With KK you're not crushing, so keep the pot controllable and take the 89.0% edge to showdown when you can; with KJ, your equity is enough to continue with initiative but thin enough that bloating the pot out of position is a trap.
KK vs KJ FAQ
Who wins KK vs KJ preflop?
KK (Pocket Kings) is the favorite, winning 89.0% of all runouts, while KJ (King-Jack) wins 9.8%. The remaining 1.2% are split pots. Counting splits as half, KK's preflop equity is 89.6%.
Does the KK vs KJ probability change all-in preflop?
No. Once both hands are all-in preflop the odds are set by the cards alone — position, stack size and who bet first change nothing. The only thing that moves the number is suits: KK's equity runs from 85.7% to 91.2% depending on suitedness and which suits the two hands share, which is why different sites quote slightly different figures. It does change once board cards are dealt (KK leads on 98% of flops) and in multiway pots, where every extra caller takes equity from both hands.
Is KK vs KJ a good spot to get all-in?
For KK, yes — a 89.6% favorite should happily commit, especially with fold equity. For KJ at 10.4%, it depends on the price: enough to continue with initiative, but thin enough that stacking off out of position is usually a leak.
Does KK hold up against KJ after the flop?
KK is still ahead on 98% of flops and stays ahead through the turn on 95% of boards; KJ takes the lead on the other 2% of flops. These are exact figures from full board enumeration.
Run any matchup in the free equity calculator · AA VS AQ · AA VS AJ · KK VS KQ · QQ VS AQ · QQ VS KQ · QQ VS QJ
KK against a range
All-in against one known hand is the textbook case; at the table KK is usually up against a range. Exact equities, computed over every combo with card removal applied:
- KK vs calling station — 78.7% against 670 combos (50.5% of hands)
- KK vs BTN open — 77.7% against 586 combos (44.2% of hands)
- KK vs SB open — 77.2% against 534 combos (40.3% of hands)
- KK vs CO open — 76.7% against 366 combos (27.6% of hands)