A5s vs 33: preflop equity

In equity, 33 against A5s stands at 50.99% to 49.01%, a gap of 1.98 points.

A5s

49.01%

Wins 48.71%, ties 0.61%

33

50.99%

Wins 50.68%, ties 0.61%

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

A5s against 33: the numbers

Exact preflop results for A5s against 33, in percent
HandWinsTiesLosesEquity
A5s48.7070.61250.68149.013
3350.6810.61248.70750.987

The first hand is a suited hand; the second is 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.

This is close to even money, with 33 a little ahead. Ties are part of the picture: 0.61% of boards end in a split pot, and each side counts that as half a win.

The hand ranking puts A5s at 30 and 33 at 66 out of 169 starting hands.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A5s20,016,000252,00020,828,000
3320,828,000252,00020,016,000

Exact total: 24 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.

A5s against 33 read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A5s0.9612.0531.9731.040
331.0401.9732.0530.961

The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity.

Who is ahead on which flops

Low rainbow flops (nine high or lower) are the best for 33 (56.19%); two-tone flops are the worst (49.97%). A5s takes over on two-tone flops, so the favorite before the flop is the underdog on those boards.

A5s against 33 by flop texture, in percent
FlopShare of flopsA5s winsTies33 winsA5s equity
Rainbow, ten or higher25.22048.5200.29151.18948.666
Rainbow, nine or lower5.68943.2591.09755.64443.808
Two-tone46.54549.8310.40349.76650.033
Monotone5.21247.7993.22248.97949.410
Paired17.33448.0210.69751.28248.370

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

Start from the random-hand figures, 59.92% for A5s and 53.69% for 33. This opponent changes them by -10.91 and -2.70 points.

A5s and 33 here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A5s, all flops49.01359.923-10.9100.81793
A5s, rainbow, ten or higher48.66659.923-11.2570.81214
A5s, rainbow, nine or lower43.80859.923-16.1150.73107
A5s, two-tone50.03359.923-9.8900.83495
A5s, monotone49.41059.923-10.5130.82456
A5s, paired48.37059.923-11.5530.80720
33, all flops50.98753.693-2.7060.94960
33, rainbow, ten or higher51.33453.693-2.3590.95607
33, rainbow, nine or lower56.19253.693+2.4991.04654
33, two-tone49.96753.693-3.7260.93061
33, monotone50.59053.693-3.1030.94221
33, paired51.63053.693-2.0630.96158

Does a shared suit matter?

Looking only at deals where the hands share a suit, 33 has 51.14%; looking only at deals where they do not, 50.83%. 33 does better with a shared suit, by 0.31 points.

A5s against 33 by suit overlap, in percent
DealsSpecific dealsShare of dealsA5s winsTies33 winsA5s equity
Share a suit1250.0048.5350.64150.82448.856
No shared suit1250.0048.8790.58350.53849.170

How often this matchup comes up

How often does it happen? 24 of the 1,624,350 ordered deals (0.0015%) are A5s against 33, and 48 (0.0030%) if either hand may sit in either seat.

A worked example

Take a $200 pot built from $100 each. 33's equity of 50.99% is worth $101.98, a $1.98 edge, and A5s' 49.01% is worth $98.02, which is $1.98 under its stake.

Run 1,000 deals and the tally comes out near 507 for 33, 487 for A5s and 6 ties.

The same matchup from the other side

The mirror image, 33 against A5s, is 50.99% to 49.01%, and its address redirects to this page.

Try As5s against 3h3d 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

Method: exact enumeration. The 24 specific deals are grouped by suit pattern, each is run against all 1,712,304 boards, and both seven-card hands are scored. Equity adds half of every tie, and flop textures are tallied over the ten flops inside each board.

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

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