AQo vs T9o: preflop equity

Before any board card is dealt, AQo holds 63.32% equity against T9o, which leaves T9o with 36.68%.

AQo

63.32%

Wins 63.11%, ties 0.42%

T9o

36.68%

Wins 36.47%, ties 0.42%

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

AQo against T9o: the numbers

Exact preflop results for AQo against T9o, in percent
HandWinsTiesLosesEquity
AQo63.1140.42036.46663.324
T9o36.4660.42063.11436.676

Here offsuit hands face each other, AQo on one side and T9o on the other. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other.

AQo is ahead, but T9o is far from dead: it takes 365 of every 1,000 deals outright. 0.42% of boards are ties, so the equity of each hand is its win rate plus half of that.

Place 14 of 169 belongs to AQo and place 78 belongs to T9o in the ranking against a random hand.

Boards behind the percentages: 246,571,776 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AQo155,621,0001,036,00089,915,000
T9o89,915,0001,036,000155,621,000

The total is exact: 144 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand.

AQo against T9o read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AQo1.7271.5842.7420.579
T9o0.5792.7421.5841.727

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

If you know the kind of flop that came, the numbers shift: AQo holds 66.27% on paired flops and 53.61% on low rainbow flops (nine high or lower). AQo stays ahead on all five textures.

AQo against T9o by flop texture, in percent
FlopShare of flopsAQo winsTiesT9o winsAQo equity
Rainbow, ten or higher24.11065.2750.15334.57265.352
Rainbow, nine or lower7.04253.2060.80445.99053.608
Two-tone46.60662.5980.28737.11562.742
Monotone5.15161.7551.68036.56562.595
Paired17.09165.9630.62033.41766.273

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

Each hand has a baseline against a random hand: 64.43% for AQo, 51.53% for T9o. Here the change is -1.11 and -14.85 points.

AQo and T9o here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AQo, all flops63.32464.432-1.1080.98280
AQo, rainbow, ten or higher65.35264.432+0.9201.01428
AQo, rainbow, nine or lower53.60864.432-10.8240.83201
AQo, two-tone62.74264.432-1.6900.97377
AQo, monotone62.59564.432-1.8370.97149
AQo, paired66.27364.432+1.8411.02857
T9o, all flops36.67651.532-14.8560.71171
T9o, rainbow, ten or higher34.64851.532-16.8840.67236
T9o, rainbow, nine or lower46.39251.532-5.1400.90026
T9o, two-tone37.25851.532-14.2740.72301
T9o, monotone37.40551.532-14.1270.72586
T9o, paired33.72751.532-17.8050.65449

Does a shared suit matter?

Looking only at deals where the hands share a suit, AQo has 63.43%; looking only at deals where they do not, 62.81%. AQo does better with a shared suit, by 0.62 points.

AQo against T9o by suit overlap, in percent
DealsSpecific dealsShare of dealsAQo winsTiesT9o winsAQo equity
Share a suit12083.3363.2080.43636.35663.426
No shared suit2416.6762.6400.34137.01962.811

How often this matchup comes up

How often does it happen? 144 of the 1,624,350 ordered deals (0.0089%) are AQo against T9o, and 288 (0.0177%) if either hand may sit in either seat.

A worked example

With $100 from each side, the $200 pot is split on average as $126.64 for AQo and $73.36 for T9o; the first side gains $26.64 per all-in and the second gives up $26.64.

In 1,000 deals of exactly this matchup, expect about 631 won outright by AQo, about 365 won outright by T9o and about 4 split.

The same matchup from the other side

If you came looking for T9o against AQo, the numbers are the same with the hands swapped: 36.68% and 63.32%.

The calculator link fills in AsQh against Td9c, 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

We counted every case. Each suit pattern of the 144 specific AQo against T9o 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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