QTs vs 87s: preflop equity

Averaged over every possible board, QTs is ahead of 87s by 26.34 points of equity, 63.17% to 36.83%.

QTs

63.17%

Wins 62.72%, ties 0.89%

87s

36.83%

Wins 36.39%, ties 0.89%

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

QTs against 87s: the numbers

Exact preflop results for QTs against 87s, in percent
HandWinsTiesLosesEquity
QTs62.7230.89236.38563.169
87s36.3850.89262.72336.831

The matchup is suited hands on both sides, QTs against 87s. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other.

A 26.34 point lead is real, and 87s still takes about 364 of every 1,000 deals outright. Ties are 0.89% of the outcomes here; each tied board gives both hands half the pot.

Place 34 of 169 belongs to QTs and place 100 belongs to 87s in the ranking against a random hand.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
QTs17,184,000244,0009,968,000
87s9,968,000244,00017,184,000

Exact total: 16 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.

QTs against 87s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
QTs1.7151.5942.7480.583
87s0.5832.7481.5941.715

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

Rainbow flops topped by a ten or better are the best for QTs (69.82%); low rainbow flops (nine high or lower) are the worst (39.61%). QTs is the favorite overall but falls behind on low rainbow flops (nine high or lower).

QTs against 87s by flop texture, in percent
FlopShare of flopsQTs winsTies87s winsQTs equity
Rainbow, ten or higher24.59569.5810.47429.94569.818
Rainbow, nine or lower6.31439.4260.36960.20539.611
Two-tone46.72762.4160.41837.16662.625
Monotone5.27358.5533.51937.92860.313
Paired17.09163.5892.17434.23764.676

Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank.

Compared with a random hand

Against one random hand instead, QTs holds 59.47% and 87s holds 47.94%. Facing each other changes that by +3.70 points for QTs and -11.11 points for 87s.

QTs and 87s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
QTs, all flops63.16959.468+3.7011.06224
QTs, rainbow, ten or higher69.81859.468+10.3501.17404
QTs, rainbow, nine or lower39.61159.468-19.8570.66609
QTs, two-tone62.62559.468+3.1571.05309
QTs, monotone60.31359.468+0.8451.01421
QTs, paired64.67659.468+5.2081.08758
87s, all flops36.83147.936-11.1050.76834
87s, rainbow, ten or higher30.18247.936-17.7540.62963
87s, rainbow, nine or lower60.38947.936+12.4531.25978
87s, two-tone37.37547.936-10.5610.77969
87s, monotone39.68747.936-8.2490.82792
87s, paired35.32447.936-12.6120.73690

Does a shared suit matter?

Does suit overlap move the numbers? QTs has 65.54% when the hands share a suit and 62.38% when they do not. QTs does better with a shared suit, by 3.16 points.

QTs against 87s by suit overlap, in percent
DealsSpecific dealsShare of dealsQTs winsTies87s winsQTs equity
Share a suit425.0065.0490.98933.96265.544
No shared suit1275.0061.9480.86037.19262.378

How often this matchup comes up

This page stands for 16 specific-card matchups (0.0010% of 1,624,350 ordered deals), or 32 once you count the seats both ways (0.0020%).

A worked example

With $100 from each side, the $200 pot is split on average as $126.34 for QTs and $73.66 for 87s; the first side gains $26.34 per all-in and the second gives up $26.34.

A thousand deals look like this: QTs takes 627, 87s takes 364, 9 are ties.

The same matchup from the other side

87s against QTs adds nothing new: it is 36.83% for 87s and 63.17% for QTs, the same figures reversed.

Open the calculator with QsTs against 8h7h 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

The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 16 specific deals, with both seven-card hands compared each time. Equity gives half a win for a tie. For the flop rows, a board is counted once under each of the ten flops inside it.

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

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