A7s vs 86s: preflop equity

Counting every board, the equity split is 59.67% for A7s and 40.33% for 86s, so A7s leads by 19.34 points.

A7s

59.67%

Wins 59.44%, ties 0.46%

86s

40.33%

Wins 40.10%, ties 0.46%

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

A7s against 86s: the numbers

Exact preflop results for A7s against 86s, in percent
HandWinsTiesLosesEquity
A7s59.4430.45940.09859.672
86s40.0980.45959.44340.328

This is a contest between two suited hands, A7s and 86s. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other.

A7s is ahead, but 86s is far from dead: it takes 401 of every 1,000 deals outright. The tie share is 0.46%: on those boards the pot is chopped and neither hand wins outright.

The hand ranking puts A7s at 24 and 86s at 110 out of 169 starting hands.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A7s16,286,000126,00010,986,000
86s10,986,000126,00016,286,000

The board total is exact, 16 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.

A7s against 86s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A7s1.4801.6822.4940.676
86s0.6762.4941.6821.480

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

A7s prefers paired flops, where it holds 64.02%, and likes low rainbow flops (nine high or lower) least, where it holds 41.44%. 86s takes over on low rainbow flops (nine high or lower), so the favorite before the flop is the underdog on those boards.

A7s against 86s by flop texture, in percent
FlopShare of flopsA7s winsTies86s winsA7s equity
Rainbow, ten or higher25.22063.2830.18936.52863.378
Rainbow, nine or lower5.68941.2430.39058.36741.438
Two-tone46.72758.5170.20941.27458.621
Monotone5.27355.1373.38741.47656.830
Paired17.09163.6930.66135.64664.024

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, A7s holds 60.98% and 86s holds 46.24%. Facing each other changes that by -1.31 points for A7s and -5.91 points for 86s.

A7s and 86s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A7s, all flops59.67260.984-1.3120.97849
A7s, rainbow, ten or higher63.37860.984+2.3941.03926
A7s, rainbow, nine or lower41.43860.984-19.5460.67949
A7s, two-tone58.62160.984-2.3630.96125
A7s, monotone56.83060.984-4.1540.93188
A7s, paired64.02460.984+3.0401.04985
86s, all flops40.32846.243-5.9150.87209
86s, rainbow, ten or higher36.62246.243-9.6210.79195
86s, rainbow, nine or lower58.56246.243+12.3191.26640
86s, two-tone41.37946.243-4.8640.89482
86s, monotone43.17046.243-3.0730.93355
86s, paired35.97646.243-10.2670.77798

Does a shared suit matter?

Of the deals of this matchup, 4 share a suit (A7s at 61.81%) and 12 do not (58.96%). A7s does better with a shared suit, by 2.85 points.

A7s against 86s by suit overlap, in percent
DealsSpecific dealsShare of dealsA7s winsTies86s winsA7s equity
Share a suit425.0061.5410.53137.92861.807
No shared suit1275.0058.7430.43540.82258.961

How often this matchup comes up

This page stands for 16 specific-card matchups (0.0010% of 1,624,350 ordered deals), or 32 once you count the seats both ways (0.0020%).

A worked example

Take a $200 pot built from $100 each. A7s' equity of 59.67% is worth $119.34, a $19.34 edge, and 86s' 40.33% is worth $80.66, which is $19.34 under its stake.

Think in thousands: about 594 of 1,000 go to A7s, about 401 go to 86s, and about 5 are chopped.

The same matchup from the other side

86s versus A7s is this same page seen from the other hand: 40.33% for 86s, 59.67% for A7s.

Try As7s against 8h6h 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.

How this was computed

Each figure is a complete count over boards. Take the 16 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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