A9s vs 33: preflop equity

Counting every board, the equity split is 50.98% for 33 and 49.02% for A9s, so 33 leads by 1.96 points.

A9s

49.02%

Wins 48.74%, ties 0.55%

33

50.98%

Wins 50.71%, ties 0.55%

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

A9s against 33: the numbers

Exact preflop results for A9s against 33, in percent
HandWinsTiesLosesEquity
A9s48.7400.55150.70949.015
3350.7090.55148.74050.985

A9s is a suited hand and 33 is a pocket pair. This is a pair against two overcards, a matchup that stays close because the other hand only needs one of its ranks to appear.

33 leads by less than 2 points of equity, so the result of any one deal is close to a toss-up. Ties are part of the picture: 0.55% of boards end in a split pot, and each side counts that as half a win.

Ranked by equity against a random hand, A9s is number 18 of the 169 starting hands and 33 is number 66.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A9s20,030,000226,00020,839,000
3320,839,000226,00020,030,000

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.

A9s against 33 read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A9s0.9612.0521.9721.040
331.0401.9722.0520.961

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

Across the five flop textures 33's equity moves by 8.08 points, from 50.04% on two-tone flops to 58.12% on low rainbow flops (nine high or lower). 33 stays ahead on all five textures.

A9s against 33 by flop texture, in percent
FlopShare of flopsA9s winsTies33 winsA9s equity
Rainbow, ten or higher25.22048.8790.24750.87449.002
Rainbow, nine or lower5.68941.4430.86657.69141.876
Two-tone46.54549.7900.33449.87649.957
Monotone5.21247.6463.17849.17649.235
Paired17.33448.4430.68150.87648.784

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

The table below sets each hand against its own random-hand baseline: a change of -13.76 points for A9s, from 62.78%, and -2.71 for 33, from 53.69%.

A9s and 33 here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A9s, all flops49.01562.781-13.7660.78073
A9s, rainbow, ten or higher49.00262.781-13.7790.78052
A9s, rainbow, nine or lower41.87662.781-20.9050.66702
A9s, two-tone49.95762.781-12.8240.79573
A9s, monotone49.23562.781-13.5460.78423
A9s, paired48.78462.781-13.9970.77705
33, all flops50.98553.693-2.7080.94957
33, rainbow, ten or higher50.99853.693-2.6950.94981
33, rainbow, nine or lower58.12453.693+4.4311.08252
33, two-tone50.04353.693-3.6500.93202
33, monotone50.76553.693-2.9280.94547
33, paired51.21653.693-2.4770.95387

Does a shared suit matter?

Of the deals of this matchup, 12 share a suit (33 at 51.18%) and 12 do not (50.79%). 33 does better with a shared suit, by 0.39 points.

A9s against 33 by suit overlap, in percent
DealsSpecific dealsShare of dealsA9s winsTies33 winsA9s equity
Share a suit1250.0048.5320.58150.88748.823
No shared suit1250.0048.9480.52150.53149.208

How often this matchup comes up

This page stands for 24 specific-card matchups (0.0015% of 1,624,350 ordered deals), or 48 once you count the seats both ways (0.0030%).

A worked example

Put $100 each into a $200 pot and deal every board once: 33 averages $101.96 back, ahead of its $100 by $1.96, while A9s averages $98.04, short of its $100 by $1.96.

Per 1,000 deals: 33 wins about 507, A9s wins about 487, and about 6 end in a split pot.

The same matchup from the other side

One page covers both views. From 33's side the equity is 50.98%, and from A9s' side it is 49.02%.

The calculator link fills in As9s 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

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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