AKo vs 54s: preflop equity

Averaged over every possible board, AKo is ahead of 54s by 17.52 points of equity, 58.76% to 41.24%.

AKo

58.76%

Wins 58.50%, ties 0.52%

54s

41.24%

Wins 40.98%, ties 0.52%

Equity counts a tie as half a win. Exact over every board.

AKo against 54s: the numbers

Exact preflop results for AKo against 54s, in percent
HandWinsTiesLosesEquity
AKo58.4960.52440.98058.758
54s40.9800.52458.49641.242

AKo, an offsuit hand, plays 54s, a suited hand. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

A 17.52 point lead is real, and 54s still takes about 410 of every 1,000 deals outright. Of every 100 boards, about 0.52 are split pots, and the equity figures already include them.

By strength against a random hand, AKo holds place 12 of 169 and 54s holds place 136.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AKo48,078,000431,00033,682,000
54s33,682,000431,00048,078,000

48 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand.

AKo against 54s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AKo1.4251.7102.4400.702
54s0.7022.4401.7101.425

The final column gives the least the pot must offer for each unit called for a call to break even at this equity.

Who is ahead on which flops

If you know the kind of flop that came, the numbers shift: AKo holds 66.54% on rainbow flops topped by a ten or better and 32.41% on low rainbow flops (nine high or lower). On low rainbow flops (nine high or lower) the numbers flip and 54s is the one ahead.

AKo against 54s by flop texture, in percent
FlopShare of flopsAKo winsTies54s winsAKo equity
Rainbow, ten or higher24.71766.4410.20133.35866.542
Rainbow, nine or lower6.31331.8781.05967.06332.408
Two-tone46.66756.7630.35342.88456.939
Monotone5.21256.0042.50041.49657.254
Paired17.09162.3320.65737.01162.660

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

Each hand has a baseline against a random hand: 65.32% for AKo, 41.45% for 54s. Here the change is -6.56 and -0.21 points.

AKo and 54s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AKo, all flops58.75865.320-6.5620.89954
AKo, rainbow, ten or higher66.54265.320+1.2221.01871
AKo, rainbow, nine or lower32.40865.320-32.9120.49614
AKo, two-tone56.93965.320-8.3810.87169
AKo, monotone57.25465.320-8.0660.87652
AKo, paired62.66065.320-2.6600.95928
54s, all flops41.24241.453-0.2110.99491
54s, rainbow, ten or higher33.45841.453-7.9950.80713
54s, rainbow, nine or lower67.59241.453+26.1391.63057
54s, two-tone43.06141.453+1.6081.03879
54s, monotone42.74641.453+1.2931.03119
54s, paired37.34041.453-4.1130.90078

Does a shared suit matter?

When the hands share a suit, AKo holds 59.43%; when they do not, it holds 58.09%. AKo does better with a shared suit, by 1.34 points.

AKo against 54s by suit overlap, in percent
DealsSpecific dealsShare of dealsAKo winsTies54s winsAKo equity
Share a suit2450.0059.1460.56240.29259.427
No shared suit2450.0057.8470.48541.66858.089

How often this matchup comes up

Out of 1,624,350 ways to deal two seats two cards each, 48 are AKo in one seat and 54s in the other (0.0030%); with the seats swapped too, 96 (0.0059%).

A worked example

Try it with money: two players each put in $100 and the whole board runs out every possible way. AKo averages $117.52 from the $200, up $17.52; 54s averages $82.48, down $17.52.

A thousand deals look like this: AKo takes 585, 54s takes 410, 5 are ties.

The same matchup from the other side

The mirror image, 54s against AKo, is 41.24% to 58.76%, and its address redirects to this page.

AsKh against 5d4d is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength.

How this was computed

The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 48 specific deals, with both seven-card hands compared each time. Equity gives half a win for a tie. For the flop rows, a board is counted once under each of the ten flops inside it.

Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used.

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