Hand odds / AK vs A5

AK vs A5: odds and equity

In short

AKo wins 70.2% of the time against A5o all in before the flop, A5o wins 25.0%, and they split the pot 4.8% of the time. AKo is a clear favourite, about 3 to 1. With AKo vs A5s the split is 68.5% to 31.5% in equity.

AKo

72.6%

vs

A5o

27.4%

Equity: win% plus half of the 4.8% split pots. AKo is a clear favourite, about 3 to 1.

Every suit combination

MatchupHand 1 winsHand 2 winsSplitHand 1 equity
AKs vs A5s67.7%28.0%4.3%69.8%
AKs vs A5o71.6%23.9%4.5%73.9%
AKo vs A5s66.2%29.3%4.5%68.5%
AKo vs A5o70.2%25.0%4.8%72.6%

What the flop does to it

When no 5 comes on the flop (87.8% of flops), AKo has 79.0% equity going to the turn. When one does, AKo drops to 26.3%.

A5o shares a card with AKo, so pairing that card doesn't help: it needs its other card to come. Domination like this is why calling with weaker hands of the same kind costs so much.

When this all-in happens in push/fold

At 10BB in 6-max, the Button shoves AKo always and the Big Blind calls with A5o always, so this exact all-in comes straight off the charts.

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 A5?
AKo. All in preflop it has 72.6% equity against A5o: 70.2% wins plus half of the 4.8% split pots. That's a clear favourite, about 3 to 1.
Do suits change the odds?
A little. AKs vs A5s is 69.8% to 30.2%; AKs vs A5o is 73.9% to 26.1%; AKo vs A5s is 68.5% to 31.5%; AKo vs A5o is 72.6% to 27.4%. Suited hands make more flushes, which is worth a few percent.
What happens on the flop?
When no 5 comes on the flop (87.8% of flops), AKo has 79.0% equity going to the turn. When one does, AKo drops to 26.3%.
When does AK vs A5 happen in push/fold?
At 10BB in 6-max, the Button shoves AKo always and the Big Blind calls with A5o always, so this exact all-in comes straight off the charts.
How were these odds worked out?
By counting every possible five-card board for every combination of suits: 108 card combinations for AKo vs A5o, 1,712,304 boards each. The numbers are exact, not simulated.

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