AQs vs KJs: preflop equity

The exact count puts AQs at 61.77% and KJs at 38.23% when the two hands see all five board cards.

AQs

61.77%

Wins 61.51%, ties 0.52%

KJs

38.23%

Wins 37.97%, ties 0.52%

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

AQs against KJs: the numbers

Exact preflop results for AQs against KJs, in percent
HandWinsTiesLosesEquity
AQs61.5060.52437.97061.768
KJs37.9700.52461.50638.232

Both hands are suited hands: AQs and KJs. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

That is a modest edge, the kind that shows up over many hands and is easy to miss in one. 0.52% of boards are ties, so the equity of each hand is its win rate plus half of that.

Ranked by equity against a random hand, AQs is number 10 of the 169 starting hands and KJs is number 20.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AQs16,851,000144,00010,403,000
KJs10,403,000144,00016,851,000

The total is exact: 16 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.

AQs against KJs read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AQs1.6161.6262.6340.619
KJs0.6192.6341.6261.616

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

Across the five flop textures AQs' equity moves by 17.06 points, from 57.59% on rainbow flops topped by a ten or better to 74.65% on low rainbow flops (nine high or lower). AQs stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

AQs against KJs by flop texture, in percent
FlopShare of flopsAQs winsTiesKJs winsAQs equity
Rainbow, ten or higher23.13857.5570.06842.37557.591
Rainbow, nine or lower7.77174.0771.14224.78174.648
Two-tone46.72760.7390.29238.96960.885
Monotone5.27356.8703.42339.70758.581
Paired17.09164.6670.60034.73364.967

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

Relative to a random opponent, AQs changes by -4.44 points (baseline 66.21%) and KJs by -24.34 points (baseline 62.57%).

AQs and KJs here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AQs, all flops61.76866.209-4.4410.93292
AQs, rainbow, ten or higher57.59166.209-8.6180.86984
AQs, rainbow, nine or lower74.64866.209+8.4391.12746
AQs, two-tone60.88566.209-5.3240.91959
AQs, monotone58.58166.209-7.6280.88479
AQs, paired64.96766.209-1.2420.98124
KJs, all flops38.23262.567-24.3350.61106
KJs, rainbow, ten or higher42.40962.567-20.1580.67782
KJs, rainbow, nine or lower25.35262.567-37.2150.40520
KJs, two-tone39.11562.567-23.4520.62517
KJs, monotone41.41962.567-21.1480.66199
KJs, paired35.03362.567-27.5340.55993

Does a shared suit matter?

Split by suits, the deals give AQs 64.11% when the hands overlap in a suit and 60.99% when they do not. AQs does better with a shared suit, by 3.12 points.

AQs against KJs by suit overlap, in percent
DealsSpecific dealsShare of dealsAQs winsTiesKJs winsAQs equity
Share a suit425.0063.8030.60335.59464.105
No shared suit1275.0060.7410.49738.76260.989

How often this matchup comes up

AQs against KJs is made up of 16 specific-card matchups in one seat order, 0.0010% of the 1,624,350 ordered deals, and 32 counting both seat orders, 0.0020%.

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average AQs takes back $123.54 of it, which is $23.54 more than it put in, and KJs takes back $76.46, $23.54 less than it put in.

Scaled to 1,000 deals, that is roughly 615 wins for AQs, 380 for KJs and 5 chopped pots.

The same matchup from the other side

KJs versus AQs is this same page seen from the other hand: 38.23% for KJs, 61.77% for AQs.

AsQs against KhJh is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength.

How this was computed

The page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 16 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows.

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

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