QTs vs 54s: preflop equity

Dealt all in against each other, QTs takes 62.43% of the pot on average and 54s takes the other 37.57%.

QTs

62.43%

Wins 61.96%, ties 0.95%

54s

37.57%

Wins 37.09%, ties 0.95%

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

QTs against 54s: the numbers

Exact preflop results for QTs against 54s, in percent
HandWinsTiesLosesEquity
QTs61.9570.95437.08962.434
54s37.0890.95461.95737.566

This is a contest between two suited hands, QTs and 54s. 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. Ties are 0.95% of the outcomes here; each tied board gives both hands half the pot.

QTs ranks number 34 of 169 starting hands, and 54s ranks number 136, by equity against a random hand.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
QTs16,974,000261,00010,161,000
54s10,161,000261,00016,974,000

16 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.

QTs against 54s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
QTs1.6621.6142.6960.602
54s0.6022.6961.6141.662

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

Break the boards down by their first three cards and QTs is strongest on rainbow flops topped by a ten or better (69.17%) and weakest on low rainbow flops (nine high or lower) (37.54%). The lead reverses on low rainbow flops (nine high or lower): there 54s is the favorite even though QTs is ahead overall.

QTs against 54s by flop texture, in percent
FlopShare of flopsQTs winsTies54s winsQTs equity
Rainbow, ten or higher24.59568.9370.47530.58869.174
Rainbow, nine or lower6.31437.1840.72062.09637.544
Two-tone46.72761.6010.48737.91261.845
Monotone5.27358.0363.66838.29659.870
Paired17.09163.2432.17234.58564.329

Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank.

Compared with a random hand

Compared with a random opponent, this matchup shifts QTs from 59.47% by +2.96 points and 54s from 41.45% by -3.88 points.

QTs and 54s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
QTs, all flops62.43459.468+2.9661.04988
QTs, rainbow, ten or higher69.17459.468+9.7061.16321
QTs, rainbow, nine or lower37.54459.468-21.9240.63133
QTs, two-tone61.84559.468+2.3771.03997
QTs, monotone59.87059.468+0.4021.00676
QTs, paired64.32959.468+4.8611.08174
54s, all flops37.56641.453-3.8870.90623
54s, rainbow, ten or higher30.82641.453-10.6270.74364
54s, rainbow, nine or lower62.45641.453+21.0031.50667
54s, two-tone38.15541.453-3.2980.92044
54s, monotone40.13041.453-1.3230.96808
54s, paired35.67141.453-5.7820.86052

Does a shared suit matter?

The suit split reads 64.66% for QTs with a shared suit and 61.69% without one. QTs does better with a shared suit, by 2.97 points.

QTs against 54s by suit overlap, in percent
DealsSpecific dealsShare of dealsQTs winsTies54s winsQTs equity
Share a suit425.0064.1351.05634.80964.663
No shared suit1275.0061.2310.92037.84961.691

How often this matchup comes up

Counting specific cards, QTs against 54s appears in 16 of the 1,624,350 ordered heads-up deals (0.0010%), and in 32 when the seats are swapped too (0.0020%).

A worked example

Take a $200 pot built from $100 each. QTs' equity of 62.43% is worth $124.86, a $24.86 edge, and 54s' 37.57% is worth $75.14, which is $24.86 under its stake.

In 1,000 deals of exactly this matchup, expect about 620 won outright by QTs, about 371 won outright by 54s and about 9 split.

The same matchup from the other side

The mirror image, 54s against QTs, is 37.57% to 62.43%, and its address redirects to this page.

Open the calculator with QsTs against 5h4h 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 16 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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