← Texas Hold'em odds calculator · All matchups

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

The calculator runs the same engine in your browser: change a card, deal the rest of the board, or add a third player and watch the numbers move.