22 vs 53s: preflop equity

Over all 1,712,304 boards that can follow this deal, 53s finishes with 50.23% of the pot and 22 with 49.77%.

22

49.77%

Wins 48.01%, ties 3.52%

53s

50.23%

Wins 48.47%, ties 3.52%

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

22 against 53s: the numbers

Exact preflop results for 22 against 53s, in percent
HandWinsTiesLosesEquity
2248.0133.52148.46649.773
53s48.4663.52148.01350.227

22 is a pocket pair and 53s is 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.

53s leads by less than 1 points of equity, so the result of any one deal is close to a toss-up. Ties are part of the picture: 3.52% of boards end in a split pot, and each side counts that as half a win.

Place 87 of 169 belongs to 22 and place 146 belongs to 53s in the ranking against a random hand.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
2219,731,0001,447,00019,917,000
53s19,917,0001,447,00019,731,000

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 53s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
220.9912.0832.0631.009
53s1.0092.0632.0830.991

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

Split by what the flop looks like, 53s peaks at 60.94% on low rainbow flops (nine high or lower) and bottoms out at 46.40% on paired flops. 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 53s by flop texture, in percent
FlopShare of flops22 winsTies53s wins22 equity
Rainbow, ten or higher25.84451.4271.92046.65352.387
Rainbow, nine or lower5.06538.1101.90859.98239.064
Two-tone46.54547.2311.81950.95048.140
Monotone5.21246.5655.03248.40349.081
Paired17.33448.35010.49841.15253.599

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

How much does the opponent matter? Compared with its random-hand 50.33%, 22 changes by -0.56 points, and 53s, from 39.69%, by +10.54.

22 and 53s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
22, all flops49.77350.334-0.5610.98885
22, rainbow, ten or higher52.38750.334+2.0531.04079
22, rainbow, nine or lower39.06450.334-11.2700.77610
22, two-tone48.14050.334-2.1940.95641
22, monotone49.08150.334-1.2530.97511
22, paired53.59950.334+3.2651.06487
53s, all flops50.22739.693+10.5341.26539
53s, rainbow, ten or higher47.61339.693+7.9201.19953
53s, rainbow, nine or lower60.93639.693+21.2431.53518
53s, two-tone51.86039.693+12.1671.30653
53s, monotone50.91939.693+11.2261.28282
53s, paired46.40139.693+6.7081.16900

Does a shared suit matter?

Looking only at deals where the hands share a suit, 53s has 50.10%; looking only at deals where they do not, 50.35%. 53s does better with no shared suit, by 0.25 points.

22 against 53s by suit overlap, in percent
DealsSpecific dealsShare of deals22 winsTies53s wins22 equity
Share a suit1250.0048.1313.54048.32949.901
No shared suit1250.0047.8943.50348.60349.646

How often this matchup comes up

Out of 1,624,350 ways to deal two seats two cards each, 24 are 22 in one seat and 53s in the other (0.0015%); with the seats swapped too, 48 (0.0030%).

A worked example

To see what the equity is worth, imagine $100 each in a $200 pot. 53s is worth $100.46 on average (+$0.46); 22 is worth $99.54 (-$0.46).

In 1,000 deals of exactly this matchup, expect about 485 won outright by 53s, about 480 won outright by 22 and about 35 split.

The same matchup from the other side

53s against 22 adds nothing new: it is 50.23% for 53s and 49.77% for 22, the same figures reversed.

Open the calculator with 2s2h against 5d3d 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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