77 vs KJo: preflop equity

If 77 and KJo get all the chips in before the flop, 77 owns 53.82% of the pot in the long run and KJo owns 46.18%.

77

53.82%

Wins 53.61%, ties 0.42%

KJo

46.18%

Wins 45.97%, ties 0.42%

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

77 against KJo: the numbers

Exact preflop results for 77 against KJo, in percent
HandWinsTiesLosesEquity
7753.6130.41845.96953.822
KJo45.9690.41853.61346.178

The first hand is a pocket pair; the second is an offsuit hand. This is a pair against two overcards, a matchup that stays close because the other hand only needs one of its ranks to appear.

This is close to even money, with 77 a little ahead. Ties are part of the picture: 0.42% of boards end in a split pot, and each side counts that as half a win.

Ranked by equity against a random hand, 77 is number 9 of the 169 starting hands and KJo is number 26.

Boards behind the percentages: 123,285,888 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
7766,097,000515,00056,673,000
KJo56,673,000515,00066,097,000

Exact total: 72 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.

77 against KJo read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
771.1661.8652.1750.858
KJo0.8582.1751.8651.166

The final column gives the least the pot must offer for each unit called for a call to break even at this equity.

Who is ahead on which flops

Break the boards down by their first three cards and 77 is strongest on low rainbow flops (nine high or lower) (80.92%) and weakest on rainbow flops topped by a ten or better (46.06%). On rainbow flops topped by a ten or better the numbers flip and KJo is the one ahead.

77 against KJo by flop texture, in percent
FlopShare of flops77 winsTiesKJo wins77 equity
Rainbow, ten or higher24.71745.9510.21453.83546.058
Rainbow, nine or lower6.31480.5710.68818.74180.915
Two-tone46.48552.7110.29946.99052.861
Monotone5.15149.7671.71548.51850.625
Paired17.33358.2790.54441.17758.551

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

The table below sets each hand against its own random-hand baseline: a change of -12.42 points for 77, from 66.24%, and -14.39 for KJo, from 60.57%.

77 and KJo here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
77, all flops53.82266.236-12.4140.81258
77, rainbow, ten or higher46.05866.236-20.1780.69536
77, rainbow, nine or lower80.91566.236+14.6791.22162
77, two-tone52.86166.236-13.3750.79807
77, monotone50.62566.236-15.6110.76431
77, paired58.55166.236-7.6850.88398
KJo, all flops46.17860.569-14.3910.76240
KJo, rainbow, ten or higher53.94260.569-6.6270.89059
KJo, rainbow, nine or lower19.08560.569-41.4840.31510
KJo, two-tone47.13960.569-13.4300.77827
KJo, monotone49.37560.569-11.1940.81519
KJo, paired41.44960.569-19.1200.68433

Does a shared suit matter?

Looking only at deals where the hands share a suit, 77 has 53.74%; looking only at deals where they do not, 54.25%. 77 does better with no shared suit, by 0.51 points.

77 against KJo by suit overlap, in percent
DealsSpecific dealsShare of deals77 winsTiesKJo wins77 equity
Share a suit6083.3353.5200.43446.04653.737
No shared suit1216.6754.0760.33945.58554.245

How often this matchup comes up

77 against KJo is made up of 72 specific-card matchups in one seat order, 0.0044% of the 1,624,350 ordered deals, and 144 counting both seat orders, 0.0089%.

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average 77 takes back $107.64 of it, which is $7.64 more than it put in, and KJo takes back $92.36, $7.64 less than it put in.

Think in thousands: about 536 of 1,000 go to 77, about 460 go to KJo, and about 4 are chopped.

The same matchup from the other side

One page covers both views. From KJo's side the equity is 46.18%, and from 77's side it is 53.82%.

Open the calculator with 7s7h against KdJc 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

This is an exact count with no sampling. For the 72 ways to deal one 77 and one KJo without reusing a card, grouped by suit pattern, every one of the 1,712,304 possible boards is dealt and both seven-card hands are compared. A tie counts as half a win in the equity column, and each board is counted once under each of its ten three-card flops.

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

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