A6s vs 75s: preflop equity

Dealt all in against each other, A6s takes 59.75% of the pot on average and 75s takes the other 40.25%.

A6s

59.75%

Wins 59.50%, ties 0.51%

75s

40.25%

Wins 39.99%, ties 0.51%

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

A6s against 75s: the numbers

Exact preflop results for A6s against 75s, in percent
HandWinsTiesLosesEquity
A6s59.4960.51139.99359.751
75s39.9930.51159.49640.249

This is a contest between two suited hands, A6s and 75s. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

A 19.50 point lead is real, and 75s still takes about 400 of every 1,000 deals outright. Ties are part of the picture: 0.51% of boards end in a split pot, and each side counts that as half a win.

A6s ranks number 31 of 169 starting hands, and 75s ranks number 124, by equity against a random hand.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A6s16,300,000140,00010,957,000
75s10,957,000140,00016,300,000

Exact total: 16 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 75s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A6s1.4851.6812.5000.674
75s0.6742.5001.6811.485

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

Break the boards down by their first three cards and A6s is strongest on paired flops (64.27%) and weakest on low rainbow flops (nine high or lower) (41.03%). 75s is ahead on low rainbow flops (nine high or lower), even though it trails A6s when every flop is counted.

A6s against 75s by flop texture, in percent
FlopShare of flopsA6s winsTies75s winsA6s equity
Rainbow, ten or higher25.22063.4270.22936.34463.541
Rainbow, nine or lower5.68940.7410.57558.68441.028
Two-tone46.72758.5280.26541.20758.661
Monotone5.27355.1233.43741.44056.841
Paired17.09163.9340.67335.39364.271

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

Against one random hand instead, A6s holds 59.91% and 75s holds 43.68%. Facing each other changes that by -0.16 points for A6s and -3.43 points for 75s.

A6s and 75s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A6s, all flops59.75159.906-0.1550.99741
A6s, rainbow, ten or higher63.54159.906+3.6351.06068
A6s, rainbow, nine or lower41.02859.906-18.8780.68487
A6s, two-tone58.66159.906-1.2450.97922
A6s, monotone56.84159.906-3.0650.94884
A6s, paired64.27159.906+4.3651.07286
75s, all flops40.24943.676-3.4270.92154
75s, rainbow, ten or higher36.45943.676-7.2170.83476
75s, rainbow, nine or lower58.97243.676+15.2961.35022
75s, two-tone41.33943.676-2.3370.94649
75s, monotone43.15943.676-0.5170.98816
75s, paired35.72943.676-7.9470.81805

Does a shared suit matter?

Two kinds of deal exist here. In 4 of them the hands share a suit and A6s holds 61.89%. In 12 they do not, and it holds 59.04%. A6s does better with a shared suit, by 2.85 points.

A6s against 75s by suit overlap, in percent
DealsSpecific dealsShare of dealsA6s winsTies75s winsA6s equity
Share a suit425.0061.5970.58737.81661.890
No shared suit1275.0058.7960.48540.71959.038

How often this matchup comes up

Out of 1,624,350 ways to deal two seats two cards each, 16 are A6s in one seat and 75s in the other (0.0010%); with the seats swapped too, 32 (0.0020%).

A worked example

Worked example: both players commit $100, so $200 sits in the middle. Over every board, A6s' average share is $119.50 (a gain of $19.50) and 75s' is $80.50 (a loss of $19.50).

Run 1,000 deals and the tally comes out near 595 for A6s, 400 for 75s and 5 ties.

The same matchup from the other side

75s versus A6s is this same page seen from the other hand: 40.25% for 75s, 59.75% for A6s.

Try As6s against 7h5h 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

The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 16 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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