AQs vs 75s: preflop equity

Averaged over every possible board, AQs is ahead of 75s by 25.30 points of equity, 62.65% to 37.35%.

AQs

62.65%

Wins 62.39%, ties 0.51%

75s

37.35%

Wins 37.10%, ties 0.51%

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

AQs against 75s: the numbers

Exact preflop results for AQs against 75s, in percent
HandWinsTiesLosesEquity
AQs62.3930.50637.10162.646
75s37.1010.50662.39337.354

The matchup is suited hands on both sides, AQs against 75s. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.

The lead is steady rather than large, and the flop still has plenty of say in who wins. 0.51% of boards are ties, so the equity of each hand is its win rate plus half of that.

The hand ranking puts AQs at 10 and 75s at 124 out of 169 starting hands.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AQs17,094,000139,00010,165,000
75s10,165,000139,00017,094,000

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.

AQs against 75s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AQs1.6771.6032.6950.596
75s0.5962.6951.6031.677

The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call.

Who is ahead on which flops

The flop changes the picture. AQs does best on rainbow flops topped by a ten or better, at 69.68%, and worst on low rainbow flops (nine high or lower), at 36.01%. On low rainbow flops (nine high or lower) the numbers flip and 75s is the one ahead.

AQs against 75s by flop texture, in percent
FlopShare of flopsAQs winsTies75s winsAQs equity
Rainbow, ten or higher24.59569.5910.17830.23169.680
Rainbow, nine or lower6.31435.6510.72363.62636.013
Two-tone46.72761.7890.26537.94661.922
Monotone5.27358.1403.44238.41859.861
Paired17.09164.8750.64934.47665.199

A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank.

Compared with a random hand

Relative to a random opponent, AQs changes by -3.56 points (baseline 66.21%) and 75s by -6.33 points (baseline 43.68%).

AQs and 75s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AQs, all flops62.64666.209-3.5630.94619
AQs, rainbow, ten or higher69.68066.209+3.4711.05242
AQs, rainbow, nine or lower36.01366.209-30.1960.54393
AQs, two-tone61.92266.209-4.2870.93525
AQs, monotone59.86166.209-6.3480.90412
AQs, paired65.19966.209-1.0100.98475
75s, all flops37.35443.676-6.3220.85525
75s, rainbow, ten or higher30.32043.676-13.3560.69420
75s, rainbow, nine or lower63.98743.676+20.3111.46504
75s, two-tone38.07843.676-5.5980.87183
75s, monotone40.13943.676-3.5370.91902
75s, paired34.80143.676-8.8750.79680

Does a shared suit matter?

Suit overlap shows up in the numbers. With a suit in common AQs has 64.92% equity, and with none in common it has 61.89%. AQs does better with a shared suit, by 3.03 points.

AQs against 75s by suit overlap, in percent
DealsSpecific dealsShare of dealsAQs winsTies75s winsAQs equity
Share a suit425.0064.6240.58634.79064.917
No shared suit1275.0061.6490.47937.87261.889

How often this matchup comes up

The class pair covers 16 combinations of specific cards in a fixed seat order, 0.0010% of 1,624,350, and 32 (0.0020%) in either order.

A worked example

Try it with money: two players each put in $100 and the whole board runs out every possible way. AQs averages $125.30 from the $200, up $25.30; 75s averages $74.70, down $25.30.

A thousand deals look like this: AQs takes 624, 75s takes 371, 5 are ties.

The same matchup from the other side

Swap the hands and you get 75s with 37.35% against AQs with 62.65%. We keep one page per matchup, with the better-ranked hand first.

Try AsQs 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

This is an exact count with no sampling. For the 16 ways to deal one AQs and one 75s without reusing a card, grouped by suit pattern, every one of the 1,712,304 possible boards is dealt and both seven-card hands are compared. A tie counts as half a win in the equity column, and each board is counted once under each of its ten three-card flops.

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

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