KJo vs 43s: preflop equity

In equity, KJo against 43s stands at 60.80% to 39.20%, a gap of 21.60 points.

KJo

60.80%

Wins 60.44%, ties 0.73%

43s

39.20%

Wins 38.83%, ties 0.73%

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

KJo against 43s: the numbers

Exact preflop results for KJo against 43s, in percent
HandWinsTiesLosesEquity
KJo60.4380.73138.83160.803
43s38.8310.73160.43839.197

KJo and 43s are an offsuit hand and a suited hand, in that order. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.

The lead is steady rather than large, and the flop still has plenty of say in who wins. Ties are 0.73% of the outcomes here; each tied board gives both hands half the pot.

By strength against a random hand, KJo holds place 26 of 169 and 43s holds place 150.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
KJo49,674,000601,00031,915,000
43s31,915,000601,00049,674,000

48 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.

KJo against 43s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
KJo1.5511.6552.5750.645
43s0.6452.5751.6551.551

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

By flop texture, KJo's equity runs from 35.76% on low rainbow flops (nine high or lower) up to 68.77% on rainbow flops topped by a ten or better. Watch for low rainbow flops (nine high or lower): on those flops 43s holds the better equity.

KJo against 43s by flop texture, in percent
FlopShare of flopsKJo winsTies43s winsKJo equity
Rainbow, ten or higher24.71768.6100.31631.07468.768
Rainbow, nine or lower6.31335.2191.08163.70035.760
Two-tone46.66758.9590.44240.59959.180
Monotone5.21257.6292.63639.73558.947
Paired17.09162.8311.40835.76163.535

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

Start from the random-hand figures, 60.57% for KJo and 38.64% for 43s. This opponent changes them by +0.23 and +0.56 points.

KJo and 43s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
KJo, all flops60.80360.569+0.2341.00386
KJo, rainbow, ten or higher68.76860.569+8.1991.13537
KJo, rainbow, nine or lower35.76060.569-24.8090.59040
KJo, two-tone59.18060.569-1.3890.97707
KJo, monotone58.94760.569-1.6220.97322
KJo, paired63.53560.569+2.9661.04897
43s, all flops39.19738.642+0.5551.01436
43s, rainbow, ten or higher31.23238.642-7.4100.80824
43s, rainbow, nine or lower64.24038.642+25.5981.66244
43s, two-tone40.82038.642+2.1781.05636
43s, monotone41.05338.642+2.4111.06239
43s, paired36.46538.642-2.1770.94366

Does a shared suit matter?

The suit split reads 61.52% for KJo with a shared suit and 60.09% without one. KJo does better with a shared suit, by 1.43 points.

KJo against 43s by suit overlap, in percent
DealsSpecific dealsShare of dealsKJo winsTies43s winsKJo equity
Share a suit2450.0061.1350.76738.09861.519
No shared suit2450.0059.7410.69439.56560.088

How often this matchup comes up

How often does it happen? 48 of the 1,624,350 ordered deals (0.0030%) are KJo against 43s, and 96 (0.0059%) if either hand may sit in either seat.

A worked example

Put $100 each into a $200 pot and deal every board once: KJo averages $121.60 back, ahead of its $100 by $21.60, while 43s averages $78.40, short of its $100 by $21.60.

A thousand deals look like this: KJo takes 605, 43s takes 388, 7 are ties.

The same matchup from the other side

43s against KJo adds nothing new: it is 39.20% for 43s and 60.80% for KJo, the same figures reversed.

KsJh against 4d3d 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 48 deals of KJo against 43s 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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