AKo vs 86s: preflop equity

The exact count puts AKo at 59.67% and 86s at 40.33% when the two hands see all five board cards.

AKo

59.67%

Wins 59.45%, ties 0.43%

86s

40.33%

Wins 40.12%, ties 0.43%

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

AKo against 86s: the numbers

Exact preflop results for AKo against 86s, in percent
HandWinsTiesLosesEquity
AKo59.4500.43040.12059.665
86s40.1200.43059.45040.335

AKo, an offsuit hand, plays 86s, a suited hand. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

That is a modest edge, the kind that shows up over many hands and is easy to miss in one. Split pots make up 0.43% of the boards, and both equity figures count them as half a win each.

By strength against a random hand, AKo holds place 12 of 169 and 86s holds place 110.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AKo48,862,000353,00032,975,000
86s32,975,000353,00048,862,000

The total is exact: 48 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand.

AKo against 86s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AKo1.4791.6822.4930.676
86s0.6762.4931.6821.479

The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity.

Who is ahead on which flops

Break the boards down by their first three cards and AKo is strongest on rainbow flops topped by a ten or better (67.75%) and weakest on low rainbow flops (nine high or lower) (33.55%). AKo is the favorite overall but falls behind on low rainbow flops (nine high or lower).

AKo against 86s by flop texture, in percent
FlopShare of flopsAKo winsTies86s winsAKo equity
Rainbow, ten or higher24.71767.6810.13932.18067.750
Rainbow, nine or lower6.31333.1730.74366.08433.545
Two-tone46.66757.8830.25041.86758.008
Monotone5.21256.8122.36840.82057.996
Paired17.09162.3380.63737.02562.656

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

Against one random hand instead, AKo holds 65.32% and 86s holds 46.24%. Facing each other changes that by -5.65 points for AKo and -5.91 points for 86s.

AKo and 86s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AKo, all flops59.66565.320-5.6550.91343
AKo, rainbow, ten or higher67.75065.320+2.4301.03720
AKo, rainbow, nine or lower33.54565.320-31.7750.51355
AKo, two-tone58.00865.320-7.3120.88806
AKo, monotone57.99665.320-7.3240.88788
AKo, paired62.65665.320-2.6640.95922
86s, all flops40.33546.243-5.9080.87224
86s, rainbow, ten or higher32.25046.243-13.9930.69740
86s, rainbow, nine or lower66.45546.243+20.2121.43708
86s, two-tone41.99246.243-4.2510.90807
86s, monotone42.00446.243-4.2390.90833
86s, paired37.34446.243-8.8990.80756

Does a shared suit matter?

When the hands share a suit, AKo holds 60.37%; when they do not, it holds 58.96%. AKo does better with a shared suit, by 1.41 points.

AKo against 86s by suit overlap, in percent
DealsSpecific dealsShare of dealsAKo winsTies86s winsAKo equity
Share a suit2450.0060.1380.47039.39260.373
No shared suit2450.0058.7630.38940.84858.957

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 86s in the other (0.0030%); with the seats swapped too, 96 (0.0059%).

A worked example

To see what the equity is worth, imagine $100 each in a $200 pot. AKo is worth $119.34 on average (+$19.34); 86s is worth $80.66 (-$19.34).

Out of 1,000 deals you should see around 595 outright wins for AKo, 401 for 86s, and 4 split pots.

The same matchup from the other side

The mirror image, 86s against AKo, is 40.33% to 59.67%, and its address redirects to this page.

The calculator link fills in AsKh against 8d6d, a deal where the two hands share no suit. Change any card to test your own hand. The neighboring matchups below swap one of the two hands for one of similar strength.

How this was computed

Each figure is a complete count over boards. Take the 48 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops.

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

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