AA vs KJ: Odds & Interactive Calculator
| Hand | Win | Tie | Equity |
|---|---|---|---|
| AA (Pocket Aces) | 85.4% | 0.4% | 85.6% |
| KJ (King-Jack) | 14.2% | 0.4% | 14.4% |
Suited vs offsuit: KJ
| Matchup | Win | Tie | Equity |
|---|---|---|---|
| KJs | 17.3% | 0.4% | 17.5% |
| KJo | 13.1% | 0.4% | 13.3% |
How AA vs KJ unfolds by street
Pocket Aces (AA) is still ahead on 96% of flops against KJ, and the lead survives to the turn on 91%. KJ takes the lead on the other 4% of flops. These figures come from full board enumeration, not a simulation.
| Street | AA still ahead | KJ flipped the lead |
|---|---|---|
| Flop | 96% | 4% |
| Turn | 91% | 9% |
AA vs KJ is about as good as a non-cooler gets for the pair: both of KJ's cards are undercards, so no single card flips the lead. AA wins 85.4%, KJ wins 14.2%, and 0.4% of boards chop. The underdog has to pair twice, make a straight or flush, or otherwise back in — which is why pairs stack undercards so reliably at a 6.0-to-1 clip.
Translate that into a decision and it's simple pot-odds math: counting split pots as half, AA carries 85.6% equity and KJ 14.4%. 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 AA vs KJ depends on which side you hold. With AA you're not crushing, so keep the pot controllable and take the 85.4% 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.
AA vs KJ FAQ
Who wins AA vs KJ preflop?
AA (Pocket Aces) is the favorite, winning 85.4% of all runouts, while KJ (King-Jack) wins 14.2%. The remaining 0.4% are split pots. Counting splits as half, AA's preflop equity is 85.6%.
Does the AA 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: AA's equity runs from 81.9% to 87.4% 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 (AA leads on 96% of flops) and in multiway pots, where every extra caller takes equity from both hands.
Is AA vs KJ a good spot to get all-in?
For AA, yes — a 85.6% favorite should happily commit, especially with fold equity. For KJ at 14.4%, it depends on the price: enough to continue with initiative, but thin enough that stacking off out of position is usually a leak.
Does AA hold up against KJ after the flop?
AA is still ahead on 96% of flops and stays ahead through the turn on 91% of boards; KJ takes the lead on the other 4% of flops. These are exact figures from full board enumeration.
Run any matchup in the free equity calculator · AA VS QJ · KK VS QJ · AA VS KT · AA VS QT · AA VS JT · KK VS QT
AA against a range
All-in against one known hand is the textbook case; at the table AA is usually up against a range. Exact equities, computed over every combo with card removal applied:
- AA vs calling station — 84.3% against 670 combos (50.5% of hands)
- AA vs BTN open — 84.1% against 586 combos (44.2% of hands)
- AA vs SB open — 84.4% against 534 combos (40.3% of hands)
- AA vs CO open — 83.6% against 366 combos (27.6% of hands)