AJs vs 75s: preflop equity

Dealt all in against each other, AJs takes 62.62% of the pot on average and 75s takes the other 37.38%.

AJs

62.62%

Wins 62.37%, ties 0.50%

75s

37.38%

Wins 37.13%, ties 0.50%

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

AJs against 75s: the numbers

Exact preflop results for AJs against 75s, in percent
HandWinsTiesLosesEquity
AJs62.3700.49837.13262.619
75s37.1320.49862.37037.381

AJs meets 75s, and both are suited hands. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other.

A 25.24 point lead is real, and 75s still takes about 371 of every 1,000 deals outright. Ties are part of the picture: 0.50% of boards end in a split pot, and each side counts that as half a win.

Place 11 of 169 belongs to AJs and place 124 belongs to 75s in the ranking against a random hand.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AJs17,087,000136,00010,173,000
75s10,173,000136,00017,087,000

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.

AJs against 75s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AJs1.6751.6032.6930.597
75s0.5972.6931.6031.675

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

Break the boards down by their first three cards and AJs is strongest on rainbow flops topped by a ten or better (69.54%) and weakest on low rainbow flops (nine high or lower) (36.41%). The lead reverses on low rainbow flops (nine high or lower): there 75s is the favorite even though AJs is ahead overall.

AJs against 75s by flop texture, in percent
FlopShare of flopsAJs winsTies75s winsAJs equity
Rainbow, ten or higher24.59569.4450.18430.37169.537
Rainbow, nine or lower6.31436.0880.64463.26836.410
Two-tone46.72761.7630.25637.98161.891
Monotone5.27358.1143.43838.44859.833
Paired17.09164.8710.65334.47665.197

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, AJs holds 65.39% and 75s holds 43.68%. Facing each other changes that by -2.77 points for AJs and -6.30 points for 75s.

AJs and 75s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AJs, all flops62.61965.393-2.7740.95758
AJs, rainbow, ten or higher69.53765.393+4.1441.06337
AJs, rainbow, nine or lower36.41065.393-28.9830.55679
AJs, two-tone61.89165.393-3.5020.94645
AJs, monotone59.83365.393-5.5600.91498
AJs, paired65.19765.393-0.1960.99700
75s, all flops37.38143.676-6.2950.85587
75s, rainbow, ten or higher30.46343.676-13.2130.69748
75s, rainbow, nine or lower63.59043.676+19.9141.45595
75s, two-tone38.10943.676-5.5670.87254
75s, monotone40.16743.676-3.5090.91966
75s, paired34.80343.676-8.8730.79684

Does a shared suit matter?

When the hands share a suit, AJs holds 64.89%; when they do not, it holds 61.86%. AJs does better with a shared suit, by 3.03 points.

AJs against 75s by suit overlap, in percent
DealsSpecific dealsShare of dealsAJs winsTies75s winsAJs equity
Share a suit425.0064.6000.57734.82364.889
No shared suit1275.0061.6270.47237.90161.863

How often this matchup comes up

How often does it happen? 16 of the 1,624,350 ordered deals (0.0010%) are AJs against 75s, and 32 (0.0020%) if either hand may sit in either seat.

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average AJs takes back $125.24 of it, which is $25.24 more than it put in, and 75s takes back $74.76, $25.24 less than it put in.

Think in thousands: about 624 of 1,000 go to AJs, about 371 go to 75s, and about 5 are chopped.

The same matchup from the other side

One page covers both views. From 75s' side the equity is 37.38%, and from AJs' side it is 62.62%.

Try AsJs 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

We counted every case. Each suit pattern of the 16 specific AJs against 75s deals meets all 1,712,304 boards, and the better five-card hand wins; a split pot is half a win each. The flop table reads each board under all ten of its three-card flops.

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

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