86s vs 54s: preflop equity

Dealt all in against each other, 86s takes 62.06% of the pot on average and 54s takes the other 37.94%.

86s

62.06%

Wins 59.79%, ties 4.54%

54s

37.94%

Wins 35.67%, ties 4.54%

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

86s against 54s: the numbers

Exact preflop results for 86s against 54s, in percent
HandWinsTiesLosesEquity
86s59.7924.53735.67162.060
54s35.6714.53759.79237.940

The matchup is suited hands on both sides, 86s against 54s. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other.

86s is ahead, but 54s is far from dead: it takes 357 of every 1,000 deals outright. Ties are 4.54% of the outcomes here; each tied board gives both hands half the pot.

Among the 169 starting hands, 86s is number 110 and 54s is number 136 by strength against a random hand.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
86s16,381,0001,243,0009,773,000
54s9,773,0001,243,00016,381,000

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.

86s against 54s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
86s1.6361.6722.8030.611
54s0.6112.8031.6721.636

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

By flop texture, 86s' equity runs from 59.59% on low rainbow flops (nine high or lower) up to 63.49% on rainbow flops topped by a ten or better. 86s stays ahead on all five textures.

86s against 54s by flop texture, in percent
FlopShare of flops86s winsTies54s wins86s equity
Rainbow, ten or higher25.84461.5383.90834.55463.492
Rainbow, nine or lower5.06559.2600.66540.07559.593
Two-tone46.72760.4172.98736.59661.910
Monotone5.27357.2145.31837.46859.873
Paired17.09156.39410.63332.97361.710

Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank.

Compared with a random hand

Each hand has a baseline against a random hand: 46.24% for 86s, 41.45% for 54s. Here the change is +15.82 and -3.51 points.

86s and 54s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
86s, all flops62.06046.243+15.8171.34204
86s, rainbow, ten or higher63.49246.243+17.2491.37301
86s, rainbow, nine or lower59.59346.243+13.3501.28869
86s, two-tone61.91046.243+15.6671.33880
86s, monotone59.87346.243+13.6301.29475
86s, paired61.71046.243+15.4671.33447
54s, all flops37.94041.453-3.5130.91525
54s, rainbow, ten or higher36.50841.453-4.9450.88071
54s, rainbow, nine or lower40.40741.453-1.0460.97477
54s, two-tone38.09041.453-3.3630.91887
54s, monotone40.12741.453-1.3260.96801
54s, paired38.29041.453-3.1630.92370

Does a shared suit matter?

When the hands share a suit, 86s holds 64.40%; when they do not, it holds 61.28%. 86s does better with a shared suit, by 3.12 points.

86s against 54s by suit overlap, in percent
DealsSpecific dealsShare of deals86s winsTies54s wins86s equity
Share a suit425.0061.9674.87433.15964.404
No shared suit1275.0059.0674.42536.50861.279

How often this matchup comes up

The class pair covers 16 combinations of specific cards in a fixed seat order, 0.0010% of 1,624,350, and 32 (0.0020%) in either order.

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average 86s takes back $124.12 of it, which is $24.12 more than it put in, and 54s takes back $75.88, $24.12 less than it put in.

A thousand deals look like this: 86s takes 598, 54s takes 357, 45 are ties.

The same matchup from the other side

The reversed view, 54s against 86s, shows 37.94% for 54s and 62.06% for 86s. It is the same count, so it redirects here.

The calculator link fills in 8s6s against 5h4h, 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

The page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 16 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows.

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

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