QTo vs T9s: preflop equity

In equity, QTo against T9s stands at 68.12% to 31.88%, a gap of 36.24 points.

QTo

68.12%

Wins 66.08%, ties 4.07%

T9s

31.88%

Wins 29.85%, ties 4.07%

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

QTo against T9s: the numbers

Exact preflop results for QTo against T9s, in percent
HandWinsTiesLosesEquity
QTo66.0844.06729.84968.117
T9s29.8494.06766.08431.883

We compare an offsuit hand with a suited hand. Because the hands share one rank, the one with the higher kicker is ahead when that rank pairs and the other hand is mostly drawing.

QTo is the clear favorite, though T9s gets there on roughly one board in 3. Ties are 4.07% of the outcomes here; each tied board gives both hands half the pot.

In the ranking of all 169 starting hands, QTo is number 47 and T9s is number 64.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
QTo40,736,0002,507,00018,400,000
T9s18,400,0002,507,00040,736,000

The board total is exact, 36 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.

QTo against T9s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
QTo2.1361.5133.3500.468
T9s0.4683.3501.5132.136

In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity.

Who is ahead on which flops

QTo prefers rainbow flops topped by a ten or better, where it holds 73.47%, and likes low rainbow flops (nine high or lower) least, where it holds 57.31%. QTo stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

QTo against T9s by flop texture, in percent
FlopShare of flopsQTo winsTiesT9s winsQTo equity
Rainbow, ten or higher23.90571.5423.85224.60673.468
Rainbow, nine or lower7.04256.1592.29341.54857.306
Two-tone46.52764.7883.31731.89566.447
Monotone5.19261.7314.59433.67564.028
Paired17.33467.3686.94225.69070.839

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, QTo changes by +10.83 points (baseline 57.29%) and T9s by -22.15 points (baseline 54.03%).

QTo and T9s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
QTo, all flops68.11757.291+10.8261.18897
QTo, rainbow, ten or higher73.46857.291+16.1771.28237
QTo, rainbow, nine or lower57.30657.291+0.0151.00026
QTo, two-tone66.44757.291+9.1561.15982
QTo, monotone64.02857.291+6.7371.11759
QTo, paired70.83957.291+13.5481.23648
T9s, all flops31.88354.028-22.1450.59012
T9s, rainbow, ten or higher26.53254.028-27.4960.49108
T9s, rainbow, nine or lower42.69454.028-11.3340.79022
T9s, two-tone33.55354.028-20.4750.62103
T9s, monotone35.97254.028-18.0560.66580
T9s, paired29.16154.028-24.8670.53974

Does a shared suit matter?

Suit overlap shows up in the numbers. With a suit in common QTo has 69.10% equity, and with none in common it has 67.63%. QTo does better with a shared suit, by 1.47 points.

QTo against T9s by suit overlap, in percent
DealsSpecific dealsShare of dealsQTo winsTiesT9s winsQTo equity
Share a suit1233.3367.0084.18028.81269.098
No shared suit2466.6765.6214.01130.36867.627

How often this matchup comes up

You will meet this exact matchup 0.0044% of the time in a random heads-up deal: 72 of 1,624,350, counting either seat order.

A worked example

Worked example: both players commit $100, so $200 sits in the middle. Over every board, QTo's average share is $136.24 (a gain of $36.24) and T9s' is $63.76 (a loss of $36.24).

A thousand deals look like this: QTo takes 661, T9s takes 298, 41 are ties.

The same matchup from the other side

Read it from the other side: T9s against QTo is the same matchup with the numbers swapped, so T9s holds 31.88% and QTo holds 68.12%. That address sends you back to this page.

Try QsTh against Td9d in the calculator: the hands share no suit, and every card can be changed. The links after it are the closest matchups in the ranking.

How this was computed

Each figure is a complete count over boards. Take the 36 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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