55 vs 76s: preflop equity

Before any board card is dealt, 55 holds 50.59% equity against 76s, which leaves 76s with 49.41%.

55

50.59%

Wins 49.86%, ties 1.45%

76s

49.41%

Wins 48.69%, ties 1.45%

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

55 against 76s: the numbers

Exact preflop results for 55 against 76s, in percent
HandWinsTiesLosesEquity
5549.8621.45448.68450.589
76s48.6841.45449.86249.411

We compare a pocket pair with a suited hand. A pair against two higher cards is the classic race: the pair is usually a small favorite or close to even, and each overcard that pairs is a way to take the lead.

With only 1.18 points between them, the board decides this matchup far more than the cards in hand. A split pot comes up on 1.45% of boards, so the wins and the equity differ by half of that.

For context, 55 sits at number 27 of 169 starting hands and 76s at number 115 when each is run against a random hand.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
5520,491,000598,00020,007,000
76s20,007,000598,00020,491,000

Exact total: 24 deals times 1,712,304 boards. The other three counts come from the five-decimal percentages and are rounded to the nearest thousand, so read them as approximate.

55 against 76s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
551.0242.0062.0540.977
76s0.9772.0542.0061.024

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

Paired flops are the best for 55 (56.06%); low rainbow flops (nine high or lower) are the worst (42.54%). The lead reverses on low rainbow flops (nine high or lower), two-tone flops and monotone flops: there 76s is the favorite even though 55 is ahead overall.

55 against 76s by flop texture, in percent
FlopShare of flops55 winsTies76s wins55 equity
Rainbow, ten or higher25.84451.8130.89147.29652.258
Rainbow, nine or lower5.06542.2920.50157.20742.542
Two-tone46.54548.1910.78451.02548.583
Monotone5.21248.3393.00248.65949.840
Paired17.33454.1113.90341.98656.062

Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank.

Compared with a random hand

Against one random hand instead, 55 holds 60.33% and 76s holds 45.37%. Facing each other changes that by -9.74 points for 55 and +4.04 points for 76s.

55 and 76s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
55, all flops50.58960.325-9.7360.83861
55, rainbow, ten or higher52.25860.325-8.0670.86627
55, rainbow, nine or lower42.54260.325-17.7830.70521
55, two-tone48.58360.325-11.7420.80535
55, monotone49.84060.325-10.4850.82619
55, paired56.06260.325-4.2630.92933
76s, all flops49.41145.372+4.0391.08902
76s, rainbow, ten or higher47.74245.372+2.3701.05223
76s, rainbow, nine or lower57.45845.372+12.0861.26638
76s, two-tone51.41745.372+6.0451.13323
76s, monotone50.16045.372+4.7881.10553
76s, paired43.93845.372-1.4340.96839

Does a shared suit matter?

Looking only at deals where the hands share a suit, 55 has 50.68%; looking only at deals where they do not, 50.49%. The two rows differ by only 0.19 points, so suits barely change this matchup.

55 against 76s by suit overlap, in percent
DealsSpecific dealsShare of deals55 winsTies76s wins55 equity
Share a suit1250.0049.9381.49148.57150.684
No shared suit1250.0049.7861.41748.79750.494

How often this matchup comes up

This page stands for 24 specific-card matchups (0.0015% of 1,624,350 ordered deals), or 48 once you count the seats both ways (0.0030%).

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average 55 takes back $101.18 of it, which is $1.18 more than it put in, and 76s takes back $98.82, $1.18 less than it put in.

Think in thousands: about 499 of 1,000 go to 55, about 487 go to 76s, and about 14 are chopped.

The same matchup from the other side

One page covers both views. From 76s' side the equity is 49.41%, and from 55's side it is 50.59%.

Open the calculator with 5s5h against 7d6d already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking.

How this was computed

Each figure is a complete count over boards. Take the 24 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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