A6s vs A3s: preflop equity

Dealt all in against each other, A6s takes 57.13% of the pot on average and A3s takes the other 42.87%.

A6s

57.13%

Wins 41.22%, ties 31.81%

A3s

42.87%

Wins 26.97%, ties 31.81%

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

A6s against A3s: the numbers

Exact preflop results for A6s against A3s, in percent
HandWinsTiesLosesEquity
A6s41.22131.81426.96557.128
A3s26.96531.81441.22142.872

Two suited hands meet here: A6s against A3s. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up.

A6s is ahead, but A3s is far from dead: it takes 270 of every 1,000 deals outright. About 31.81% of boards chop the pot, which is why equity sits slightly above the win figure for both hands.

Place 31 of 169 belongs to A6s and place 38 belongs to A3s in the ranking against a random hand.

Boards behind the percentages: 20,547,648 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A6s8,470,0006,537,0005,541,000
A3s5,541,0006,537,0008,470,000

Exact total: 12 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.

A6s against A3s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A6s1.3332.4263.7090.750
A3s0.7503.7092.4261.333

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

By flop texture, A6s' equity runs from 53.70% on paired flops up to 60.87% on low rainbow flops (nine high or lower). A6s stays ahead on all five textures.

A6s against A3s by flop texture, in percent
FlopShare of flopsA6s winsTiesA3s winsA6s equity
Rainbow, ten or higher24.52640.21335.69524.09258.061
Rainbow, nine or lower6.38353.84714.03832.11560.866
Two-tone46.54343.87527.39328.73257.571
Monotone5.21544.50722.24233.25155.628
Paired17.33329.88647.62022.49453.696

Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank.

Compared with a random hand

Relative to a random opponent, A6s changes by -2.78 points (baseline 59.91%) and A3s by -15.35 points (baseline 58.22%).

A6s and A3s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A6s, all flops57.12859.906-2.7780.95363
A6s, rainbow, ten or higher58.06159.906-1.8450.96920
A6s, rainbow, nine or lower60.86659.906+0.9601.01603
A6s, two-tone57.57159.906-2.3350.96102
A6s, monotone55.62859.906-4.2780.92859
A6s, paired53.69659.906-6.2100.89634
A3s, all flops42.87258.220-15.3480.73638
A3s, rainbow, ten or higher41.93958.220-16.2810.72035
A3s, rainbow, nine or lower39.13458.220-19.0860.67217
A3s, two-tone42.42958.220-15.7910.72877
A3s, monotone44.37258.220-13.8480.76214
A3s, paired46.30458.220-11.9160.79533

Does a shared suit matter?

For this pair the shared-suit row is empty: the two hands cannot both own a card of one suit without reusing a card.

A6s against A3s by suit overlap, in percent
DealsSpecific dealsShare of dealsA6s winsTiesA3s winsA6s equity
Share a suit00.00not possiblenot possiblenot possiblenot possible
No shared suit12100.0041.22131.81426.96557.128

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

Worked example: both players commit $100, so $200 sits in the middle. Over every board, A6s' average share is $114.26 (a gain of $14.26) and A3s' is $85.74 (a loss of $14.26).

Over a long run, 1,000 deals split into about 412 for A6s, 270 for A3s and 318 tied.

The same matchup from the other side

The reversed view, A3s against A6s, shows 42.87% for A3s and 57.13% for A6s. It is the same count, so it redirects here.

Open the calculator with As6s against Ah3h already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking.

How this was computed

All 1,712,304 five-card boards are dealt for every suit pattern among the 12 specific deals of A6s against A3s, 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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