KJo vs 53s: preflop equity

Counting every board, the equity split is 60.44% for KJo and 39.56% for 53s, so KJo leads by 20.88 points.

KJo

60.44%

Wins 60.08%, ties 0.72%

53s

39.56%

Wins 39.20%, ties 0.72%

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

KJo against 53s: the numbers

Exact preflop results for KJo against 53s, in percent
HandWinsTiesLosesEquity
KJo60.0770.71639.20760.435
53s39.2070.71660.07739.565

KJo is an offsuit hand and 53s is a suited hand. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.

That is a modest edge, the kind that shows up over many hands and is easy to miss in one. Of every 100 boards, about 0.72 are split pots, and the equity figures already include them.

Place 26 of 169 belongs to KJo and place 146 belongs to 53s in the ranking against a random hand.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
KJo49,378,000588,00032,224,000
53s32,224,000588,00049,378,000

The total is exact: 48 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.

KJo against 53s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
KJo1.5271.6652.5510.655
53s0.6552.5511.6651.527

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

The flop changes the picture. KJo does best on rainbow flops topped by a ten or better, at 68.58%, and worst on low rainbow flops (nine high or lower), at 34.49%. On low rainbow flops (nine high or lower) the numbers flip and 53s is the one ahead.

KJo against 53s by flop texture, in percent
FlopShare of flopsKJo winsTies53s winsKJo equity
Rainbow, ten or higher24.71768.4170.31631.26768.575
Rainbow, nine or lower6.31333.9871.00265.01134.488
Two-tone46.66758.5930.42940.97858.807
Monotone5.21257.3632.56940.06858.648
Paired17.09162.5331.40436.06363.235

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

Relative to a random opponent, KJo changes by -0.13 points (baseline 60.57%) and 53s by -0.13 points (baseline 39.69%).

KJo and 53s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
KJo, all flops60.43560.569-0.1340.99779
KJo, rainbow, ten or higher68.57560.569+8.0061.13218
KJo, rainbow, nine or lower34.48860.569-26.0810.56940
KJo, two-tone58.80760.569-1.7620.97091
KJo, monotone58.64860.569-1.9210.96828
KJo, paired63.23560.569+2.6661.04402
53s, all flops39.56539.693-0.1280.99678
53s, rainbow, ten or higher31.42539.693-8.2680.79170
53s, rainbow, nine or lower65.51239.693+25.8191.65047
53s, two-tone41.19339.693+1.5001.03779
53s, monotone41.35239.693+1.6591.04180
53s, paired36.76539.693-2.9280.92623

Does a shared suit matter?

Two kinds of deal exist here. In 24 of them the hands share a suit and KJo holds 61.15%. In 24 they do not, and it holds 59.72%. KJo does better with a shared suit, by 1.43 points.

KJo against 53s by suit overlap, in percent
DealsSpecific dealsShare of dealsKJo winsTies53s winsKJo equity
Share a suit2450.0060.7690.75538.47661.147
No shared suit2450.0059.3850.67639.93959.723

How often this matchup comes up

You will meet this exact matchup 0.0059% of the time in a random heads-up deal: 96 of 1,624,350, counting either seat order.

A worked example

Try it with money: two players each put in $100 and the whole board runs out every possible way. KJo averages $120.88 from the $200, up $20.88; 53s averages $79.12, down $20.88.

A thousand deals look like this: KJo takes 601, 53s takes 392, 7 are ties.

The same matchup from the other side

The reversed view, 53s against KJo, shows 39.56% for 53s and 60.44% for KJo. It is the same count, so it redirects here.

Open the calculator with KsJh against 5d3d already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking.

How this was computed

Each figure is a complete count over boards. Take the 48 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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