KJ vs K9s: Preflop Equity & Odds
| Hand | Win | Tie | Equity |
|---|---|---|---|
| KJ (King-Jack) | 65.6% | 7.2% | 69.2% |
| K9s (King-Nine Suited) | 27.2% | 7.2% | 30.8% |
Suited vs offsuit: KJ
| Matchup | Win | Tie | Equity |
|---|---|---|---|
| KJs | 66.6% | 7.0% | 70.1% |
| KJo | 65.3% | 7.3% | 68.9% |
How KJ vs K9s unfolds by street
King-Jack (KJ) is still ahead on 82% of flops against K9s, and the lead survives to the turn on 78%. K9s takes the lead on the other 18% of flops. These figures come from full board enumeration, not a simulation.
| Street | KJ still ahead | K9s flipped the lead |
|---|---|---|
| Flop | 82% | 18% |
| Turn | 78% | 22% |
KJ vs K9s is the matchup every "but I had top pair" cooler is made of: KJ wins 65.6%, K9s wins 27.2%, and 7.2% of boards chop. With the shared rank gutting its outs, K9s is a 2.4-to-1 underdog, and 7.2% of runouts split outright when both play the common card.
Think in variance terms: 69.2% equity means KJ loses this all-in nearly 31 times in 100, so even a "dominant" spot is a coin you'll see come up tails plenty. Getting it in as the 69.2% favorite is correct every time; the 30.8% that goes the other way is math, not a misplay.
The lesson of KJ vs K9s is kicker discipline: K9s is the hand that quietly costs people stacks because it's too strong to fold and too dominated to win. If you hold KJ, get value while you're ahead; if you hold the dominated side, this is the exact spot to find a preflop fold against a tight range.
KJ vs K9s FAQ
Who wins KJ vs K9s preflop?
KJ (King-Jack) is the favorite, winning 65.6% of all runouts, while K9s (King-Nine Suited) wins 27.2%. The remaining 7.2% are split pots. Counting splits as half, KJ's preflop equity is 69.2%.
How often does K9s beat KJ?
K9s wins 27.2% of the time all-in preflop against KJ — roughly 1 in 4 — so it needs good pot odds or fold equity to get the money in profitably.
Why is K9s so bad against KJ?
Because they share a card, K9s is drawing to roughly three outs and chops 7.2% of the time — it wins only about 1 in 4. That's the danger of a dominated hand: too strong to fold, too far behind to outdraw, which is how kicker problems quietly cost full stacks.
Does KJ hold up against K9s after the flop?
KJ is still ahead on 82% of flops and stays ahead through the turn on 78% of boards; K9s takes the lead on the other 18% of flops. These are exact figures from full board enumeration.
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