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Kings vs a small pair: the odds
What are the odds of pocket kings against a small pocket pair?
| Hand | Cards | Wins | Equity |
|---|---|---|---|
| Pocket kings | K♥ K♦ | 81.3% | 81.6% |
| Pocket fours | 4♥ 4♦ | 18.2% | 18.4% |
| Split pot | — | 0.52% | — |
All-in before the flop, with five cards to come. Equity is each hand's average share of the pot — outright wins plus half of the split pots. Computed by enumerating all 1,712,304 possible boards with this site's own engine, so these are exact figures rather than a simulation.
Why the number looks like that
The underpair flops a set roughly one time in eight, and that is very nearly its whole hope — which is why small pairs are worth playing for a small price and painful to play for a large one.
Try it yourself
Open this hand in the calculator
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