KJ vs 87s: Preflop Equity & Odds
| Hand | Win | Tie | Equity |
|---|---|---|---|
| KJ (King-Jack) | 60.0% | 0.6% | 60.3% |
| 87s (Eight-Seven Suited) | 39.3% | 0.6% | 39.7% |
Suited vs offsuit: KJ
| Matchup | Win | Tie | Equity |
|---|---|---|---|
| KJs | 61.9% | 0.7% | 62.2% |
| KJo | 59.4% | 0.6% | 59.7% |
How KJ vs 87s unfolds by street
King-Jack (KJ) is still ahead on 70% of flops against 87s, and the lead survives to the turn on 66%. 87s takes the lead on the other 30% of flops. These figures come from full board enumeration, not a simulation.
| Street | KJ still ahead | 87s flipped the lead |
|---|---|---|
| Flop | 70% | 30% |
| Turn | 66% | 34% |
Two unpaired hands with all four ranks live: KJ vs 87s. KJ wins 60.0%, 87s wins 39.3%, and 0.6% of boards chop. The favorite isn't running away with it — 39.3% of the time 87s pairs up first or backs into the better runout — but higher cards making higher pairs is enough to keep KJ in front.
Translate that into a decision and it's simple pot-odds math: counting split pots as half, KJ carries 60.3% equity and 87s 39.7%. Against a pot-sized shove you need about 33% to call and about 25% versus a half-pot bet — so 87s is comfortably priced in to get it all-in here.
How you play KJ vs 87s depends on which side you hold. With KJ you're not crushing, so keep the pot controllable and take the 60.0% edge to showdown when you can; with 87s, your equity is enough to continue with initiative but thin enough that bloating the pot out of position is a trap.
KJ vs 87s FAQ
Who wins KJ vs 87s preflop?
KJ (King-Jack) is the favorite, winning 60.0% of all runouts, while 87s (Eight-Seven Suited) wins 39.3%. The remaining 0.6% are split pots. Counting splits as half, KJ's preflop equity is 60.3%.
How often does 87s beat KJ?
87s wins 39.3% of the time all-in preflop against KJ — a genuine underdog, but with enough live outs (about 1 in 3) that the matchup is closer than the favorite would like.
Is KJ vs 87s a good spot to get all-in?
For KJ, yes — a 60.3% favorite should happily commit, especially with fold equity. For 87s at 39.7%, it depends on the price: enough to continue with initiative, but thin enough that stacking off out of position is usually a leak.
Does KJ hold up against 87s after the flop?
KJ is still ahead on 70% of flops and stays ahead through the turn on 66% of boards; 87s takes the lead on the other 30% of flops. These are exact figures from full board enumeration.
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