33 vs 53s: preflop equity

In equity, 33 against 53s stands at 60.86% to 39.14%, a gap of 21.72 points.

33

60.86%

Wins 58.57%, ties 4.57%

53s

39.14%

Wins 36.86%, ties 4.57%

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

33 against 53s: the numbers

Exact preflop results for 33 against 53s, in percent
HandWinsTiesLosesEquity
3358.5714.56936.86060.856
53s36.8604.56958.57139.144

33, a pocket pair, plays 53s, a suited hand. One hand holds a card of the same rank as the pair, which removes a card the pair needs and makes the pair a bigger favorite.

A 21.72 point lead is real, and 53s still takes about 368 of every 1,000 deals outright. A split pot comes up on 4.57% of boards, so the wins and the equity differ by half of that.

33 ranks number 66 of 169 starting hands, and 53s ranks number 146, by equity against a random hand.

Boards behind the percentages: 20,547,648 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
3312,035,000939,0007,574,000
53s7,574,000939,00012,035,000

The total is exact: 12 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.

33 against 53s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
331.5551.7072.7130.643
53s0.6432.7131.7071.555

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

The flop changes the picture. 33 does best on rainbow flops topped by a ten or better, at 65.03%, and worst on low rainbow flops (nine high or lower), at 47.38%. 53s is ahead on low rainbow flops (nine high or lower), even though it trails 33 when every flop is counted.

33 against 53s by flop texture, in percent
FlopShare of flops33 winsTies53s wins33 equity
Rainbow, ten or higher25.78663.6652.72433.61165.027
Rainbow, nine or lower4.99544.5645.62649.81047.377
Two-tone46.23657.6943.00139.30559.195
Monotone5.15255.6344.85939.50758.064
Paired17.83158.25410.92030.82663.714

Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank.

Compared with a random hand

Each hand has a baseline against a random hand: 53.69% for 33, 39.69% for 53s. Here the change is +7.17 and -0.55 points.

33 and 53s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
33, all flops60.85653.693+7.1631.13341
33, rainbow, ten or higher65.02753.693+11.3341.21109
33, rainbow, nine or lower47.37753.693-6.3160.88237
33, two-tone59.19553.693+5.5021.10247
33, monotone58.06453.693+4.3711.08141
33, paired63.71453.693+10.0211.18664
53s, all flops39.14439.693-0.5490.98617
53s, rainbow, ten or higher34.97339.693-4.7200.88109
53s, rainbow, nine or lower52.62339.693+12.9301.32575
53s, two-tone40.80539.693+1.1121.02802
53s, monotone41.93639.693+2.2431.05651
53s, paired36.28639.693-3.4070.91417

Does a shared suit matter?

Every legal deal of 33 against 53s leaves the hands with no suit in common, so the suit split does not apply here.

33 against 53s by suit overlap, in percent
DealsSpecific dealsShare of deals33 winsTies53s wins33 equity
Share a suit00.00not possiblenot possiblenot possiblenot possible
No shared suit12100.0058.5714.56936.86060.856

How often this matchup comes up

The class pair covers 12 combinations of specific cards in a fixed seat order, 0.0007% of 1,624,350, and 24 (0.0015%) in either order.

A worked example

With $100 from each side, the $200 pot is split on average as $121.72 for 33 and $78.28 for 53s; the first side gains $21.72 per all-in and the second gives up $21.72.

Out of 1,000 deals you should see around 586 outright wins for 33, 368 for 53s, and 46 split pots.

The same matchup from the other side

53s against 33 adds nothing new: it is 39.14% for 53s and 60.86% for 33, the same figures reversed.

Try 3s3h against 5d3d in the calculator: the hands share no suit, and every card can be changed. The links after it are the closest matchups in the ranking.

How this was computed

We counted every case. Each suit pattern of the 12 specific 33 against 53s deals meets all 1,712,304 boards, and the better five-card hand wins; a split pot is half a win each. The flop table reads each board under all ten of its three-card flops.

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

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