AA vs 86s: preflop equity

Averaged over every possible board, AA is ahead of 86s by 57.52 points of equity, 78.76% to 21.24%.

AA

78.76%

Wins 78.58%, ties 0.36%

86s

21.24%

Wins 21.06%, ties 0.36%

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

AA against 86s: the numbers

Exact preflop results for AA against 86s, in percent
HandWinsTiesLosesEquity
AA78.5840.36021.05678.764
86s21.0560.36078.58421.236

AA is a pocket pair and 86s is a suited hand. The pair outranks both of the other hand's cards, which is why the pair is a strong favorite.

That is a clear edge, 78.76% to 21.24%, but 86s still wins often enough that one hand proves nothing. Split pots make up 0.36% of the boards, and both equity figures count them as half a win each.

In the ranking of all 169 starting hands, AA is number 1 and 86s is number 110.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AA32,294,000148,0008,653,000
86s8,653,000148,00032,294,000

The board total is exact, 24 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.

AA against 86s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AA3.7091.2734.7490.270
86s0.2704.7491.2733.709

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

By flop texture, AA's equity runs from 66.42% on low rainbow flops (nine high or lower) up to 83.77% on rainbow flops topped by a ten or better. AA stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

AA against 86s by flop texture, in percent
FlopShare of flopsAA winsTies86s winsAA equity
Rainbow, ten or higher24.59583.6740.20016.12683.774
Rainbow, nine or lower6.31466.0530.74333.20466.424
Two-tone46.54576.6600.29623.04476.808
Monotone5.21272.3242.40225.27473.525
Paired17.33482.9750.00717.01882.979

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

Start from the random-hand figures, 85.20% for AA and 46.24% for 86s. This opponent changes them by -6.44 and -25.00 points.

AA and 86s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AA, all flops78.76485.204-6.4400.92442
AA, rainbow, ten or higher83.77485.204-1.4300.98322
AA, rainbow, nine or lower66.42485.204-18.7800.77959
AA, two-tone76.80885.204-8.3960.90146
AA, monotone73.52585.204-11.6790.86293
AA, paired82.97985.204-2.2250.97389
86s, all flops21.23646.243-25.0070.45923
86s, rainbow, ten or higher16.22646.243-30.0170.35089
86s, rainbow, nine or lower33.57646.243-12.6670.72608
86s, two-tone23.19246.243-23.0510.50152
86s, monotone26.47546.243-19.7680.57252
86s, paired17.02146.243-29.2220.36808

Does a shared suit matter?

Two kinds of deal exist here. In 12 of them the hands share a suit and AA holds 79.34%. In 12 they do not, and it holds 78.19%. AA does better with a shared suit, by 1.15 points.

AA against 86s by suit overlap, in percent
DealsSpecific dealsShare of dealsAA winsTies86s winsAA equity
Share a suit1250.0079.1420.40120.45779.342
No shared suit1250.0078.0260.31921.65578.185

How often this matchup comes up

How often does it happen? 24 of the 1,624,350 ordered deals (0.0015%) are AA against 86s, and 48 (0.0030%) if either hand may sit in either seat.

A worked example

A $100 all-in from each player makes a $200 pot, and the exact equity says AA gets $157.52 of it on average and 86s gets $42.48.

Per 1,000 deals: AA wins about 786, 86s wins about 210, and about 4 end in a split pot.

The same matchup from the other side

The mirror image, 86s against AA, is 21.24% to 78.76%, and its address redirects to this page.

The calculator link fills in AsAh 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

This is an exact count with no sampling. For the 24 ways to deal one AA and one 86s without reusing a card, grouped by suit pattern, every one of the 1,712,304 possible boards is dealt and both seven-card hands are compared. A tie counts as half a win in the equity column, and each board is counted once under each of its ten three-card flops.

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

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