KJ vs K5s: Preflop Equity & Odds
| Hand | Win | Tie | Equity |
|---|---|---|---|
| KJ (King-Jack) | 65.1% | 7.4% | 68.8% |
| K5s (King-Five Suited) | 27.5% | 7.4% | 31.2% |
Suited vs offsuit: KJ
| Matchup | Win | Tie | Equity |
|---|---|---|---|
| KJs | 66.2% | 7.2% | 69.8% |
| KJo | 64.7% | 7.5% | 68.5% |
How KJ vs K5s unfolds by street
King-Jack (KJ) is still ahead on 82% of flops against K5s, and the lead survives to the turn on 78%. K5s takes the lead on the other 18% of flops. These figures come from full board enumeration, not a simulation.
| Street | KJ still ahead | K5s flipped the lead |
|---|---|---|
| Flop | 82% | 18% |
| Turn | 78% | 22% |
KJ vs K5s is the matchup every "but I had top pair" cooler is made of: KJ wins 65.1%, K5s wins 27.5%, and 7.4% of boards chop. Live to only its odd card (plus a thin straight or flush), K5s wins about 1 in 4; the 7.4% tie figure is the tell that these hands are tangled on the same rank.
Think in variance terms: 68.8% 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 68.8% favorite is correct every time; the 31.2% that goes the other way is math, not a misplay.
The lesson of KJ vs K5s is kicker discipline: K5s 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 K5s FAQ
Who wins KJ vs K5s preflop?
KJ (King-Jack) is the favorite, winning 65.1% of all runouts, while K5s (King-Five Suited) wins 27.5%. The remaining 7.4% are split pots. Counting splits as half, KJ's preflop equity is 68.8%.
How often does K5s beat KJ?
K5s wins 27.5% 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 K5s so bad against KJ?
Because they share a card, K5s is drawing to roughly three outs and chops 7.4% 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 K5s after the flop?
KJ is still ahead on 82% of flops and stays ahead through the turn on 78% of boards; K5s takes the lead on the other 18% of flops. These are exact figures from full board enumeration.
Run any matchup in the free equity calculator · AK VS A2S · AK VS A3S · AK VS A4S · AK VS A5S · AK VS A6S · AK VS A7S