KQs vs K9o: preflop equity

If KQs and K9o get all the chips in before the flop, KQs owns 74.81% of the pot in the long run and K9o owns 25.19%.

KQs

74.81%

Wins 72.10%, ties 5.43%

K9o

25.19%

Wins 22.47%, ties 5.43%

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

KQs against K9o: the numbers

Exact preflop results for KQs against K9o, in percent
HandWinsTiesLosesEquity
KQs72.0965.43222.47274.812
K9o22.4725.43272.09625.188

KQs and K9o are a suited hand and an offsuit hand, in that order. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up.

That is a clear edge, 74.81% to 25.19%, but K9o still wins often enough that one hand proves nothing. Ties are part of the picture: 5.43% of boards end in a split pot, and each side counts that as half a win.

KQs ranks number 16 of 169 starting hands, and K9o ranks number 40, by equity against a random hand.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
KQs44,442,0003,348,00013,852,000
K9o13,852,0003,348,00044,442,000

36 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand.

KQs against K9o read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
KQs2.9701.3874.4500.337
K9o0.3374.4501.3872.970

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

Across the five flop textures KQs' equity moves by 16.60 points, from 62.69% on low rainbow flops (nine high or lower) to 79.29% on rainbow flops topped by a ten or better. KQs stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

KQs against K9o by flop texture, in percent
FlopShare of flopsKQs winsTiesK9o winsKQs equity
Rainbow, ten or higher23.90577.4313.71518.85479.289
Rainbow, nine or lower7.04261.2462.87735.87762.685
Two-tone46.52773.8633.36122.77675.544
Monotone5.19265.1754.64130.18467.495
Paired17.33466.47814.63318.88973.794

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

How much does the opponent matter? Compared with its random-hand 63.40%, KQs changes by +11.41 points, and K9o, from 57.81%, by -32.62.

KQs and K9o here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
KQs, all flops74.81263.400+11.4121.18000
KQs, rainbow, ten or higher79.28963.400+15.8891.25062
KQs, rainbow, nine or lower62.68563.400-0.7150.98872
KQs, two-tone75.54463.400+12.1441.19155
KQs, monotone67.49563.400+4.0951.06459
KQs, paired73.79463.400+10.3941.16394
K9o, all flops25.18857.812-32.6240.43569
K9o, rainbow, ten or higher20.71157.812-37.1010.35825
K9o, rainbow, nine or lower37.31557.812-20.4970.64545
K9o, two-tone24.45657.812-33.3560.42303
K9o, monotone32.50557.812-25.3070.56225
K9o, paired26.20657.812-31.6060.45330

Does a shared suit matter?

When the hands share a suit, KQs holds 74.58%; when they do not, it holds 74.93%. KQs does better with no shared suit, by 0.35 points.

KQs against K9o by suit overlap, in percent
DealsSpecific dealsShare of dealsKQs winsTiesK9o winsKQs equity
Share a suit1233.3371.8255.51322.66274.582
No shared suit2466.6772.2325.39122.37774.928

How often this matchup comes up

You will meet this exact matchup 0.0044% of the time in a random heads-up deal: 72 of 1,624,350, counting either seat order.

A worked example

Put $100 each into a $200 pot and deal every board once: KQs averages $149.62 back, ahead of its $100 by $49.62, while K9o averages $50.38, short of its $100 by $49.62.

Out of 1,000 deals you should see around 721 outright wins for KQs, 225 for K9o, and 54 split pots.

The same matchup from the other side

One page covers both views. From K9o's side the equity is 25.19%, and from KQs' side it is 74.81%.

KsQs against Kh9d 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

Each figure is a complete count over boards. Take the 36 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops.

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

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