55 vs 33: preflop equity

Over all 1,712,304 boards that can follow this deal, 55 finishes with 81.52% of the pot and 33 with 18.48%.

55

81.52%

Wins 80.14%, ties 2.77%

33

18.48%

Wins 17.09%, ties 2.77%

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

55 against 33: the numbers

Exact preflop results for 55 against 33, in percent
HandWinsTiesLosesEquity
5580.1382.77017.09281.523
3317.0922.77080.13818.477

Both hands are pocket pairs: 55 and 33. Two pairs against each other is a one-way street: the lower pair needs one of its two remaining cards.

This is one of the lopsided matchups: 33 wins only 17.09% of the boards outright. Split pots make up 2.77% of the boards, and both equity figures count them as half a win each.

By strength against a random hand, 55 holds place 27 of 169 and 33 holds place 66.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
5549,399,0001,708,00010,536,000
3310,536,0001,708,00049,399,000

Exact total: 36 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 33 read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
554.4121.2485.8510.227
330.2275.8511.2484.412

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

By flop texture, 55's equity runs from 76.33% on monotone flops up to 83.43% on paired flops. 55 stays ahead on all five textures.

55 against 33 by flop texture, in percent
FlopShare of flops55 winsTies33 wins55 equity
Rainbow, ten or higher25.84482.1031.57516.32282.890
Rainbow, nine or lower5.06575.7411.22923.03076.355
Two-tone46.36380.4301.49818.07281.179
Monotone5.15274.5203.61721.86376.329
Paired17.57679.3938.07912.52883.433

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 +21.19 points for 55, from 60.33%, and -35.21 for 33, from 53.69%.

55 and 33 here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
55, all flops81.52360.325+21.1981.35140
55, rainbow, ten or higher82.89060.325+22.5651.37406
55, rainbow, nine or lower76.35560.325+16.0301.26573
55, two-tone81.17960.325+20.8541.34569
55, monotone76.32960.325+16.0041.26530
55, paired83.43360.325+23.1081.38306
33, all flops18.47753.693-35.2160.34412
33, rainbow, ten or higher17.11053.693-36.5830.31866
33, rainbow, nine or lower23.64553.693-30.0480.44037
33, two-tone18.82153.693-34.8720.35053
33, monotone23.67153.693-30.0220.44086
33, paired16.56753.693-37.1260.30855

Does a shared suit matter?

Suit overlap shows up in the numbers. With a suit in common 55 has 81.66% equity, and with none in common it has 80.84%. 55 does better with a shared suit, by 0.82 points.

55 against 33 by suit overlap, in percent
DealsSpecific dealsShare of deals55 winsTies33 wins55 equity
Share a suit3083.3380.2702.78116.94981.661
No shared suit616.6779.4782.71517.80780.836

How often this matchup comes up

55 against 33 is made up of 36 specific-card matchups in one seat order, 0.0022% of the 1,624,350 ordered deals, and 72 counting both seat orders, 0.0044%.

A worked example

A $100 all-in from each player makes a $200 pot, and the exact equity says 55 gets $163.04 of it on average and 33 gets $36.96.

Run 1,000 deals and the tally comes out near 801 for 55, 171 for 33 and 28 ties.

The same matchup from the other side

33 versus 55 is this same page seen from the other hand: 18.48% for 33, 81.52% for 55.

The calculator link fills in 5s5h against 3d3c, 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

All 1,712,304 five-card boards are dealt for every suit pattern among the 36 specific deals of 55 against 33, and both hands are scored on each. That is a full count, so the percentages are exact. Ties are half a win each, and each board appears once per flop it contains.

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

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