QJs vs T9s: preflop equity

Counting every board, the equity split is 64.47% for QJs and 35.53% for T9s, so QJs leads by 28.94 points.

QJs

64.47%

Wins 64.01%, ties 0.94%

T9s

35.53%

Wins 35.05%, ties 0.94%

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

QJs against T9s: the numbers

Exact preflop results for QJs against T9s, in percent
HandWinsTiesLosesEquity
QJs64.0050.93635.05964.473
T9s35.0590.93664.00535.527

Both hands are suited hands: QJs and T9s. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.

A 28.94 point lead is real, and T9s still takes about 351 of every 1,000 deals outright. The tie share is 0.94%: on those boards the pot is chopped and neither hand wins outright.

By strength against a random hand, QJs holds place 28 of 169 and T9s holds place 64.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
QJs17,535,000256,0009,605,000
T9s9,605,000256,00017,535,000

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.

QJs against T9s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
QJs1.8151.5622.8520.551
T9s0.5512.8521.5621.815

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 68.16%, and worst on low rainbow flops (nine high or lower), at 55.01%. QJs stays ahead on all five textures.

QJs against T9s by flop texture, in percent
FlopShare of flopsQJs winsTiesT9s winsQJs equity
Rainbow, ten or higher23.86767.9380.44031.62268.158
Rainbow, nine or lower7.04254.6550.70244.64355.006
Two-tone46.72763.7300.45335.81763.956
Monotone5.27359.5333.53236.93561.299
Paired17.09164.4962.24633.25865.619

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

A random hand would give QJs 60.26% and T9s 54.03%. Against each other the change is +4.21 points for QJs and -18.50 for T9s.

QJs and T9s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
QJs, all flops64.47360.259+4.2141.06993
QJs, rainbow, ten or higher68.15860.259+7.8991.13108
QJs, rainbow, nine or lower55.00660.259-5.2530.91283
QJs, two-tone63.95660.259+3.6971.06135
QJs, monotone61.29960.259+1.0401.01726
QJs, paired65.61960.259+5.3601.08895
T9s, all flops35.52754.028-18.5010.65757
T9s, rainbow, ten or higher31.84254.028-22.1860.58936
T9s, rainbow, nine or lower44.99454.028-9.0340.83279
T9s, two-tone36.04454.028-17.9840.66714
T9s, monotone38.70154.028-15.3270.71631
T9s, paired34.38154.028-19.6470.63636

Does a shared suit matter?

Does suit overlap move the numbers? QJs has 67.00% when the hands share a suit and 63.63% when they do not. QJs does better with a shared suit, by 3.37 points.

QJs against T9s by suit overlap, in percent
DealsSpecific dealsShare of dealsQJs winsTiesT9s winsQJs equity
Share a suit425.0066.4861.03332.48167.003
No shared suit1275.0063.1780.90435.91863.630

How often this matchup comes up

The class pair covers 16 combinations of specific cards in a fixed seat order, 0.0010% of 1,624,350, and 32 (0.0020%) in either order.

A worked example

With $100 from each side, the $200 pot is split on average as $128.94 for QJs and $71.06 for T9s; the first side gains $28.94 per all-in and the second gives up $28.94.

Think in thousands: about 640 of 1,000 go to QJs, about 351 go to T9s, and about 9 are chopped.

The same matchup from the other side

Swap the hands and you get T9s with 35.53% against QJs with 64.47%. We keep one page per matchup, with the better-ranked hand first.

Open the calculator with QsJs against Th9h 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 page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 16 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows.

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

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