22 vs 75s: preflop equity

Over all 1,712,304 boards that can follow this deal, 75s finishes with 52.03% of the pot and 22 with 47.97%.

22

47.97%

Wins 46.57%, ties 2.79%

75s

52.03%

Wins 50.64%, ties 2.79%

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

22 against 75s: the numbers

Exact preflop results for 22 against 75s, in percent
HandWinsTiesLosesEquity
2246.5722.78650.64247.965
75s50.6422.78646.57252.035

Here a pocket pair (22) meets a suited hand (75s). 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.

That is a slim edge: neither hand is far ahead. The tie share is 2.79%: on those boards the pot is chopped and neither hand wins outright.

The hand ranking puts 22 at 87 and 75s at 124 out of 169 starting hands.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
2219,139,0001,145,00020,811,000
75s20,811,0001,145,00019,139,000

24 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand.

22 against 75s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
220.9222.1471.9751.085
75s1.0851.9752.1470.922

The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call.

Who is ahead on which flops

Break the boards down by their first three cards and 75s is strongest on low rainbow flops (nine high or lower) (63.86%) and weakest on rainbow flops topped by a ten or better (49.13%). 22 takes over on rainbow flops topped by a ten or better and paired flops, so the favorite before the flop is the underdog on those boards.

22 against 75s by flop texture, in percent
FlopShare of flops22 winsTies75s wins22 equity
Rainbow, ten or higher25.84450.0861.57548.33950.874
Rainbow, nine or lower5.06535.5551.17863.26736.144
Two-tone46.54545.8571.43552.70846.574
Monotone5.21245.7834.61649.60148.091
Paired17.33446.7128.13745.15150.781

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

Start from the random-hand figures, 50.33% for 22 and 43.68% for 75s. This opponent changes them by -2.36 and +8.35 points.

22 and 75s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
22, all flops47.96550.334-2.3690.95293
22, rainbow, ten or higher50.87450.334+0.5401.01073
22, rainbow, nine or lower36.14450.334-14.1900.71808
22, two-tone46.57450.334-3.7600.92530
22, monotone48.09150.334-2.2430.95544
22, paired50.78150.334+0.4471.00888
75s, all flops52.03543.676+8.3591.19139
75s, rainbow, ten or higher49.12643.676+5.4501.12478
75s, rainbow, nine or lower63.85643.676+20.1801.46204
75s, two-tone53.42643.676+9.7501.22323
75s, monotone51.90943.676+8.2331.18850
75s, paired49.21943.676+5.5431.12691

Does a shared suit matter?

Two kinds of deal exist here. In 12 of them the hands share a suit and 75s holds 51.89%. In 12 they do not, and it holds 52.18%. 75s does better with no shared suit, by 0.29 points.

22 against 75s by suit overlap, in percent
DealsSpecific dealsShare of deals22 winsTies75s wins22 equity
Share a suit1250.0046.7102.80550.48548.113
No shared suit1250.0046.4352.76750.79847.818

How often this matchup comes up

The class pair covers 24 combinations of specific cards in a fixed seat order, 0.0015% of 1,624,350, and 48 (0.0030%) in either order.

A worked example

Worked example: both players commit $100, so $200 sits in the middle. Over every board, 75s' average share is $104.06 (a gain of $4.06) and 22's is $95.94 (a loss of $4.06).

Out of 1,000 deals you should see around 506 outright wins for 75s, 466 for 22, and 28 split pots.

The same matchup from the other side

75s against 22 adds nothing new: it is 52.03% for 75s and 47.97% for 22, the same figures reversed.

Open the calculator with 2s2h against 7d5d 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

Nothing here is simulated. The 24 deals of 22 against 75s fall into a few suit patterns, each dealt against all 1,712,304 boards, with both best five-card hands compared on every board. Ties give each hand half a win, and the flop rows count a board under each of its ten flops.

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

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