AJo vs A5s: preflop equity

AJo against A5s: the numbers

The first hand is an offsuit hand; the second is a suited hand. The two hands share a rank, and the one with the better other card dominates: it wins most kicker battles when that shared rank hits.

That is a clear edge, 67.03% to 32.97%, but A5s still wins often enough that one hand proves nothing. Ties are part of the picture: 7.56% of boards end in a split pot, and each side counts that as half a win.

Ranked by equity against a random hand, AJo is number 15 of the 169 starting hands and A5s is number 30.

Exact total: 36 deals times 1,712,304 boards. The other three counts come from the five-decimal percentages and are rounded to the nearest thousand, so read them as approximate.

In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity.

Who is ahead on which flops

Across the five flop textures AJo's equity moves by 22.03 points, from 52.63% on low rainbow flops (nine high or lower) to 74.66% on rainbow flops topped by a ten or better. AJo stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

Flop types: rainbow means three different suits, two-tone means one suit twice, monotone means one suit three times, paired means a repeated rank.

Compared with a random hand

How much does the opponent matter? Compared with its random-hand 63.56%, AJo changes by +3.47 points, and A5s, from 59.92%, by -26.95.

Does a shared suit matter?

The suit split reads 67.83% for AJo with a shared suit and 66.63% without one. AJo does better with a shared suit, by 1.20 points.

How often this matchup comes up

Out of 1,624,350 ways to deal two seats two cards each, 36 are AJo in one seat and A5s in the other (0.0022%); with the seats swapped too, 72 (0.0044%).

A worked example

To see what the equity is worth, imagine $100 each in a $200 pot. AJo is worth $134.06 on average (+$34.06); A5s is worth $65.94 (-$34.06).

A thousand deals look like this: AJo takes 632, A5s takes 292, 76 are ties.

The same matchup from the other side

Swap the hands and you get A5s with 32.97% against AJo with 67.03%. We keep one page per matchup, with the better-ranked hand first.

Keep exploring

Try AsJh against Ad5d in the calculator: the hands share no suit, and every card can be changed. The links after it are the closest matchups in the ranking.

• Open AsJh against Ad5d in the equity calculator
• AJo combos
• A5s combos
• AJo vs A6s
• AJo vs KTo
• KQs vs A5s
• All hand matchups