KQs vs 54s: preflop equity

Counting every board, the equity split is 61.63% for KQs and 38.37% for 54s, so KQs leads by 23.26 points.

KQs

61.63%

Wins 61.25%, ties 0.75%

54s

38.37%

Wins 38.00%, ties 0.75%

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

KQs against 54s: the numbers

Exact preflop results for KQs against 54s, in percent
HandWinsTiesLosesEquity
KQs61.2520.74838.00061.626
54s38.0000.74861.25238.374

KQs and 54s are both suited hands. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

The lead is steady rather than large, and the flop still has plenty of say in who wins. A split pot comes up on 0.75% of boards, so the wins and the equity differ by half of that.

The hand ranking puts KQs at 16 and 54s at 136 out of 169 starting hands.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
KQs16,781,000205,00010,411,000
54s10,411,000205,00016,781,000

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.

KQs against 54s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
KQs1.6061.6332.6320.623
54s0.6232.6321.6331.606

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

KQs prefers rainbow flops topped by a ten or better, where it holds 68.54%, and likes low rainbow flops (nine high or lower) least, where it holds 34.66%. Low rainbow flops (nine high or lower) favor 54s, the hand that is behind overall.

KQs against 54s by flop texture, in percent
FlopShare of flopsKQs winsTies54s winsKQs equity
Rainbow, ten or higher24.59568.3900.29931.31168.540
Rainbow, nine or lower6.31434.1590.99764.84434.657
Two-tone46.72760.6890.40438.90760.891
Monotone5.27357.3593.61339.02859.165
Paired17.09163.7281.36034.91264.408

Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank.

Compared with a random hand

How much does the opponent matter? Compared with its random-hand 63.40%, KQs changes by -1.77 points, and 54s, from 41.45%, by -3.08.

KQs and 54s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
KQs, all flops61.62663.400-1.7740.97202
KQs, rainbow, ten or higher68.54063.400+5.1401.08107
KQs, rainbow, nine or lower34.65763.400-28.7430.54664
KQs, two-tone60.89163.400-2.5090.96043
KQs, monotone59.16563.400-4.2350.93320
KQs, paired64.40863.400+1.0081.01590
54s, all flops38.37441.453-3.0790.92572
54s, rainbow, ten or higher31.46041.453-9.9930.75893
54s, rainbow, nine or lower65.34341.453+23.8901.57632
54s, two-tone39.10941.453-2.3440.94345
54s, monotone40.83541.453-0.6180.98509
54s, paired35.59241.453-5.8610.85861

Does a shared suit matter?

Suit overlap shows up in the numbers. With a suit in common KQs has 63.77% equity, and with none in common it has 60.91%. KQs does better with a shared suit, by 2.86 points.

KQs against 54s by suit overlap, in percent
DealsSpecific dealsShare of dealsKQs winsTies54s winsKQs equity
Share a suit425.0063.3490.84035.81163.769
No shared suit1275.0060.5530.71838.72960.912

How often this matchup comes up

Out of 1,624,350 ways to deal two seats two cards each, 16 are KQs in one seat and 54s in the other (0.0010%); with the seats swapped too, 32 (0.0020%).

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average KQs takes back $123.26 of it, which is $23.26 more than it put in, and 54s takes back $76.74, $23.26 less than it put in.

Over a long run, 1,000 deals split into about 613 for KQs, 380 for 54s and 7 tied.

The same matchup from the other side

54s versus KQs is this same page seen from the other hand: 38.37% for 54s, 61.63% for KQs.

The calculator link fills in KsQs against 5h4h, 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

The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 16 specific deals, with both seven-card hands compared each time. Equity gives half a win for a tie. For the flop rows, a board is counted once under each of the ten flops inside it.

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

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