Hand odds / AK vs 87

AK vs 87: odds and equity

In short

AKo wins 62.2% of the time against 87o all in before the flop, 87o wins 37.4%, and they split the pot 0.4% of the time. AKo is a clear favourite, about 2 to 1. With AKo vs 87s the split is 58.8% to 41.2% in equity.

AKo

62.4%

vs

87o

37.6%

Equity: win% plus half of the 0.4% split pots. AKo is a clear favourite, about 2 to 1.

Every suit combination

MatchupHand 1 winsHand 2 winsSplitHand 1 equity
AKs vs 87s61.2%38.4%0.5%61.4%
AKs vs 87o64.0%35.6%0.4%64.2%
AKo vs 87s58.6%41.0%0.4%58.8%
AKo vs 87o62.2%37.4%0.4%62.4%

What the flop does to it

When no 8 or 7 comes on the flop (76.3% of flops), AKo has 71.0% equity going to the turn. When one does, AKo drops to 34.8%.

AKo has two higher cards, but 87o has more ways to make straights. Still, AKo wins whenever nobody pairs.

When this all-in happens in push/fold

At 10BB in 6-max, the Button shoves AKo always, but the Big Blind folds 87o. You'll mostly see this all-in when someone calls too wide.

How often each hand shoves or calls in our solved 6-max chip-EV charts. A row with both columns high is a spot where this exact all-in is correct for both players. See every chart.

Common questions

Who is the favourite, AK or 87?
AKo. All in preflop it has 62.4% equity against 87o: 62.2% wins plus half of the 0.4% split pots. That's a clear favourite, about 2 to 1.
Do suits change the odds?
A little. AKs vs 87s is 61.4% to 38.6%; AKs vs 87o is 64.2% to 35.8%; AKo vs 87s is 58.8% to 41.2%; AKo vs 87o is 62.4% to 37.6%. Suited hands make more flushes, which is worth a few percent.
What happens on the flop?
When no 8 or 7 comes on the flop (76.3% of flops), AKo has 71.0% equity going to the turn. When one does, AKo drops to 34.8%.
When does AK vs 87 happen in push/fold?
At 10BB in 6-max, the Button shoves AKo always, but the Big Blind folds 87o. You'll mostly see this all-in when someone calls too wide.
How were these odds worked out?
By counting every possible five-card board for every combination of suits: 144 card combinations for AKo vs 87o, 1,712,304 boards each. The numbers are exact, not simulated.

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