77 vs QJs: preflop equity

Dealt all in against each other, QJs takes 50.38% of the pot on average and 77 takes the other 49.62%.

77

49.62%

Wins 49.38%, ties 0.49%

QJs

50.38%

Wins 50.13%, ties 0.49%

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

77 against QJs: the numbers

Exact preflop results for 77 against QJs, in percent
HandWinsTiesLosesEquity
7749.3790.49150.13049.624
QJs50.1300.49149.37950.376

77 is a pocket pair and QJs is a suited hand. A pair against two higher cards is the classic race: the pair is usually a small favorite or close to even, and each overcard that pairs is a way to take the lead.

That is a slim edge: neither hand is far ahead. Ties are 0.49% of the outcomes here; each tied board gives both hands half the pot.

Among the 169 starting hands, 77 is number 9 and QJs is number 28 by strength against a random hand.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
7720,292,000202,00020,601,000
QJs20,601,000202,00020,292,000

The total is exact: 24 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.

77 against QJs read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
770.9852.0251.9951.015
QJs1.0151.9952.0250.985

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

The flop changes the picture. QJs does best on rainbow flops topped by a ten or better, at 57.22%, and worst on low rainbow flops (nine high or lower), at 23.95%. QJs is the favorite overall but falls behind on low rainbow flops (nine high or lower) and paired flops.

77 against QJs by flop texture, in percent
FlopShare of flops77 winsTiesQJs wins77 equity
Rainbow, ten or higher24.59542.6550.24857.09742.779
Rainbow, nine or lower6.31475.7280.64323.62976.049
Two-tone46.54547.4540.31052.23647.609
Monotone5.21248.3012.43649.26349.519
Paired17.33454.8140.68244.50455.155

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, 77 changes by -16.62 points (baseline 66.24%) and QJs by -9.88 points (baseline 60.26%).

77 and QJs here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
77, all flops49.62466.236-16.6120.74920
77, rainbow, ten or higher42.77966.236-23.4570.64586
77, rainbow, nine or lower76.04966.236+9.8131.14815
77, two-tone47.60966.236-18.6270.71878
77, monotone49.51966.236-16.7170.74761
77, paired55.15566.236-11.0810.83270
QJs, all flops50.37660.259-9.8830.83599
QJs, rainbow, ten or higher57.22160.259-3.0380.94958
QJs, rainbow, nine or lower23.95160.259-36.3080.39747
QJs, two-tone52.39160.259-7.8680.86943
QJs, monotone50.48160.259-9.7780.83773
QJs, paired44.84560.259-15.4140.74420

Does a shared suit matter?

Two kinds of deal exist here. In 12 of them the hands share a suit and QJs holds 50.23%. In 12 they do not, and it holds 50.53%. QJs does better with no shared suit, by 0.30 points.

77 against QJs by suit overlap, in percent
DealsSpecific dealsShare of deals77 winsTiesQJs wins77 equity
Share a suit1250.0049.5080.53449.95849.775
No shared suit1250.0049.2490.44850.30349.473

How often this matchup comes up

Exactly 24 specific deals fit this matchup in one seat order, which is 0.0015% of 1,624,350; both orders together give 48, or 0.0030%.

A worked example

Take a $200 pot built from $100 each. QJs' equity of 50.38% is worth $100.76, a $0.76 edge, and 77's 49.62% is worth $99.24, which is $0.76 under its stake.

In 1,000 deals of exactly this matchup, expect about 501 won outright by QJs, about 494 won outright by 77 and about 5 split.

The same matchup from the other side

The reversed view, QJs against 77, shows 50.38% for QJs and 49.62% for 77. It is the same count, so it redirects here.

7s7h against QdJd 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

All 1,712,304 five-card boards are dealt for every suit pattern among the 24 specific deals of 77 against QJs, and both hands are scored on each. That is a full count, so the percentages are exact. Ties are half a win each, and each board appears once per flop it contains.

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

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