KQo vs A9o: preflop equity

If A9o and KQo get all the chips in before the flop, A9o owns 58.11% of the pot in the long run and KQo owns 41.89%.

KQo

41.89%

Wins 41.67%, ties 0.45%

A9o

58.11%

Wins 57.88%, ties 0.45%

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

KQo against A9o: the numbers

Exact preflop results for KQo against A9o, in percent
HandWinsTiesLosesEquity
KQo41.6680.44757.88541.892
A9o57.8850.44741.66858.108

This is a contest between two offsuit hands, KQo and A9o. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.

A 16.22 point lead is real, and KQo still takes about 417 of every 1,000 deals outright. About 0.45% of boards chop the pot, which is why equity sits slightly above the win figure for both hands.

Among the 169 starting hands, KQo is number 23 and A9o is number 25 by strength against a random hand.

Boards behind the percentages: 246,571,776 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
KQo102,742,0001,102,000142,728,000
A9o142,728,0001,102,000102,742,000

The board total is exact, 144 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.

KQo against A9o read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
KQo0.7212.4001.7281.387
A9o1.3871.7282.4000.721

In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity.

Who is ahead on which flops

Break the boards down by their first three cards and A9o is strongest on low rainbow flops (nine high or lower) (76.44%) and weakest on rainbow flops topped by a ten or better (51.45%). A9o stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

KQo against A9o by flop texture, in percent
FlopShare of flopsKQo winsTiesA9o winsKQo equity
Rainbow, ten or higher24.11048.4840.12351.39348.546
Rainbow, nine or lower7.04223.0291.06775.90423.562
Two-tone46.60642.9130.32256.76543.074
Monotone5.15143.7311.70654.56344.584
Paired17.09135.7180.60863.67436.022

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, KQo changes by -19.57 points (baseline 61.46%) and A9o by -2.66 points (baseline 60.77%).

KQo and A9o here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
KQo, all flops41.89261.456-19.5640.68166
KQo, rainbow, ten or higher48.54661.456-12.9100.78993
KQo, rainbow, nine or lower23.56261.456-37.8940.38340
KQo, two-tone43.07461.456-18.3820.70089
KQo, monotone44.58461.456-16.8720.72546
KQo, paired36.02261.456-25.4340.58614
A9o, all flops58.10860.773-2.6650.95615
A9o, rainbow, ten or higher51.45460.773-9.3190.84666
A9o, rainbow, nine or lower76.43860.773+15.6651.25776
A9o, two-tone56.92660.773-3.8470.93670
A9o, monotone55.41660.773-5.3570.91185
A9o, paired63.97860.773+3.2051.05274

Does a shared suit matter?

Split by suits, the deals give A9o 58.12% when the hands overlap in a suit and 58.05% when they do not. The two rows differ by only 0.07 points, so suits barely change this matchup.

KQo against A9o by suit overlap, in percent
DealsSpecific dealsShare of dealsKQo winsTiesA9o winsKQo equity
Share a suit12083.3341.6480.46357.88941.880
No shared suit2416.6741.7670.36857.86541.951

How often this matchup comes up

KQo against A9o is made up of 144 specific-card matchups in one seat order, 0.0089% of the 1,624,350 ordered deals, and 288 counting both seat orders, 0.0177%.

A worked example

With $100 from each side, the $200 pot is split on average as $116.22 for A9o and $83.78 for KQo; the first side gains $16.22 per all-in and the second gives up $16.22.

Over a long run, 1,000 deals split into about 579 for A9o, 417 for KQo and 4 tied.

The same matchup from the other side

Read it from the other side: A9o against KQo is the same matchup with the numbers swapped, so A9o holds 58.11% and KQo holds 41.89%. That address sends you back to this page.

KsQh against Ad9c 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

Nothing here is simulated. The 144 deals of KQo against A9o fall into a few suit patterns, each dealt against all 1,712,304 boards, with both best five-card hands compared on every board. Ties give each hand half a win, and the flop rows count a board under each of its ten flops.

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

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