A4s vs 33: preflop equity

The exact count puts 33 at 51.31% and A4s at 48.69% when the two hands see all five board cards.

A4s

48.69%

Wins 48.38%, ties 0.62%

33

51.31%

Wins 51.00%, ties 0.62%

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

A4s against 33: the numbers

Exact preflop results for A4s against 33, in percent
HandWinsTiesLosesEquity
A4s48.3790.62450.99748.691
3350.9970.62448.37951.309

We compare a suited hand with a pocket pair. 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.

With only 2.62 points between them, the board decides this matchup far more than the cards in hand. A split pot comes up on 0.62% of boards, so the wins and the equity differ by half of that.

Place 35 of 169 belongs to A4s and place 66 belongs to 33 in the ranking against a random hand.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A4s19,881,000256,00020,957,000
3320,957,000256,00019,881,000

The board total is exact, 24 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.

A4s against 33 read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A4s0.9492.0671.9611.054
331.0541.9612.0670.949

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

By flop texture, 33's equity runs from 50.32% on two-tone flops up to 57.65% on low rainbow flops (nine high or lower). 33 stays ahead on all five textures.

A4s against 33 by flop texture, in percent
FlopShare of flopsA4s winsTies33 winsA4s equity
Rainbow, ten or higher25.22048.3670.29151.34248.513
Rainbow, nine or lower5.68941.7591.18457.05742.351
Two-tone46.54549.4740.41550.11149.681
Monotone5.21247.5603.22749.21349.173
Paired17.33447.8770.70151.42248.228

Flop types: rainbow means three different suits, two-tone means one suit twice, monotone means one suit three times, paired means a repeated rank.

Compared with a random hand

Relative to a random opponent, A4s changes by -10.34 points (baseline 59.03%) and 33 by -2.38 points (baseline 53.69%).

A4s and 33 here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A4s, all flops48.69159.034-10.3430.82480
A4s, rainbow, ten or higher48.51359.034-10.5210.82178
A4s, rainbow, nine or lower42.35159.034-16.6830.71740
A4s, two-tone49.68159.034-9.3530.84157
A4s, monotone49.17359.034-9.8610.83296
A4s, paired48.22859.034-10.8060.81695
33, all flops51.30953.693-2.3840.95560
33, rainbow, ten or higher51.48753.693-2.2060.95891
33, rainbow, nine or lower57.64953.693+3.9561.07368
33, two-tone50.31953.693-3.3740.93716
33, monotone50.82753.693-2.8660.94662
33, paired51.77253.693-1.9210.96422

Does a shared suit matter?

Of the deals of this matchup, 12 share a suit (33 at 51.47%) and 12 do not (51.15%). 33 does better with a shared suit, by 0.32 points.

A4s against 33 by suit overlap, in percent
DealsSpecific dealsShare of dealsA4s winsTies33 winsA4s equity
Share a suit1250.0048.2040.65351.14348.530
No shared suit1250.0048.5550.59550.85048.852

How often this matchup comes up

How often does it happen? 24 of the 1,624,350 ordered deals (0.0015%) are A4s against 33, and 48 (0.0030%) if either hand may sit in either seat.

A worked example

Put $100 each into a $200 pot and deal every board once: 33 averages $102.62 back, ahead of its $100 by $2.62, while A4s averages $97.38, short of its $100 by $2.62.

Run 1,000 deals and the tally comes out near 510 for 33, 484 for A4s and 6 ties.

The same matchup from the other side

If you came looking for 33 against A4s, the numbers are the same with the hands swapped: 51.31% and 48.69%.

The calculator link fills in As4s against 3h3d, 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

The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 24 specific deals, with both seven-card hands compared each time. Equity gives half a win for a tie. For the flop rows, a board is counted once under each of the ten flops inside it.

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

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