77 vs 22: preflop equity

Over all 1,712,304 boards that can follow this deal, 77 finishes with 81.87% of the pot and 22 with 18.13%.

77

81.87%

Wins 81.14%, ties 1.47%

22

18.13%

Wins 17.39%, ties 1.47%

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

77 against 22: the numbers

Exact preflop results for 77 against 22, in percent
HandWinsTiesLosesEquity
7781.1351.46517.40081.868
2217.4001.46581.13518.132

Here pocket pairs face each other, 77 on one side and 22 on the other. Both hands are pairs, so the bigger pair is ahead on every board that does not pair a card below it.

This is one of the lopsided matchups: 22 wins only 17.39% of the boards outright. The tie share is 1.47%: on those boards the pot is chopped and neither hand wins outright.

The hand ranking puts 77 at 9 and 22 at 87 out of 169 starting hands.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
7750,014,000903,00010,726,000
2210,726,000903,00050,014,000

The total is exact: 36 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.

77 against 22 read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
774.5151.2335.7470.221
220.2215.7471.2334.515

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 77 (85.56%); low rainbow flops (nine high or lower) are the worst (76.24%). 77 stays ahead on all five textures.

77 against 22 by flop texture, in percent
FlopShare of flops77 winsTies22 wins77 equity
Rainbow, ten or higher25.84482.3980.86416.73882.830
Rainbow, nine or lower5.06575.8120.86323.32576.243
Two-tone46.36380.7010.84618.45381.124
Monotone5.15275.1053.11421.78176.662
Paired17.57683.7233.67312.60485.560

A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank.

Compared with a random hand

The table below sets each hand against its own random-hand baseline: a change of +15.63 points for 77, from 66.24%, and -32.20 for 22, from 50.33%.

77 and 22 here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
77, all flops81.86866.236+15.6321.23600
77, rainbow, ten or higher82.83066.236+16.5941.25053
77, rainbow, nine or lower76.24366.236+10.0071.15108
77, two-tone81.12466.236+14.8881.22477
77, monotone76.66266.236+10.4261.15741
77, paired85.56066.236+19.3241.29174
22, all flops18.13250.334-32.2020.36023
22, rainbow, ten or higher17.17050.334-33.1640.34112
22, rainbow, nine or lower23.75750.334-26.5770.47199
22, two-tone18.87650.334-31.4580.37501
22, monotone23.33850.334-26.9960.46366
22, paired14.44050.334-35.8940.28688

Does a shared suit matter?

Of the deals of this matchup, 30 share a suit (77 at 82.00%) and 6 do not (81.20%). 77 does better with a shared suit, by 0.80 points.

77 against 22 by suit overlap, in percent
DealsSpecific dealsShare of deals77 winsTies22 wins77 equity
Share a suit3083.3381.2651.47317.26282.002
No shared suit616.6780.4821.42818.09081.196

How often this matchup comes up

Counting specific cards, 77 against 22 appears in 36 of the 1,624,350 ordered heads-up deals (0.0022%), and in 72 when the seats are swapped too (0.0044%).

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average 77 takes back $163.74 of it, which is $63.74 more than it put in, and 22 takes back $36.26, $63.74 less than it put in.

Run 1,000 deals and the tally comes out near 811 for 77, 174 for 22 and 15 ties.

The same matchup from the other side

If you came looking for 22 against 77, the numbers are the same with the hands swapped: 18.13% and 81.87%.

Open the calculator with 7s7h against 2d2c 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

The page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 36 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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