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Tens vs ace-king: the odds
Is pocket tens against ace-king really a coin flip?
| Hand | Cards | Wins | Equity |
|---|---|---|---|
| Pocket tens | 10♥ 10♦ | 57.1% | 57.3% |
| Ace-king offsuit | A♠ K♣ | 42.6% | 42.7% |
| Split pot | — | 0.31% | — |
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 textbook coin flip, and the pair is the favourite by more than the word "flip" suggests, as long as ace-king is offsuit. Tens sit just below the four overcards that ace-king can make a straight with, so a broadway board is the danger; against ace-king suited the edge shrinks to almost nothing, and against a lower pair it grows. This is the hand most tournament all-ins are actually about.
Try it yourself
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