QTo vs T8s: preflop equity

Averaged over every possible board, QTo is ahead of T8s by 36.92 points of equity, 68.46% to 31.54%.

QTo

68.46%

Wins 66.39%, ties 4.12%

T8s

31.54%

Wins 29.49%, ties 4.12%

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

QTo against T8s: the numbers

Exact preflop results for QTo against T8s, in percent
HandWinsTiesLosesEquity
QTo66.3944.12429.48268.456
T8s29.4824.12466.39431.544

One side is an offsuit hand, the other is 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 well ahead, and T8s needs a specific kind of board to catch up. Of every 100 boards, about 4.12 are split pots, and the equity figures already include them.

Place 47 of 169 belongs to QTo and place 73 belongs to T8s in the ranking against a random hand.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
QTo40,927,0002,542,00018,174,000
T8s18,174,0002,542,00040,927,000

36 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.

QTo against T8s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
QTo2.1701.5063.3920.461
T8s0.4613.3921.5062.170

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

Split by what the flop looks like, QTo peaks at 74.38% on rainbow flops topped by a ten or better and bottoms out at 55.99% on low rainbow flops (nine high or lower). 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 T8s by flop texture, in percent
FlopShare of flopsQTo winsTiesT8s winsQTo equity
Rainbow, ten or higher23.90572.3933.97423.63374.380
Rainbow, nine or lower7.04254.8762.22242.90255.987
Two-tone46.52765.0943.37931.52766.783
Monotone5.19261.9274.62233.45164.238
Paired17.33467.6276.95525.41871.105

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

The table below sets each hand against its own random-hand baseline: a change of +11.17 points for QTo, from 57.29%, and -20.79 for T8s, from 52.33%.

QTo and T8s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
QTo, all flops68.45657.291+11.1651.19488
QTo, rainbow, ten or higher74.38057.291+17.0891.29828
QTo, rainbow, nine or lower55.98757.291-1.3040.97724
QTo, two-tone66.78357.291+9.4921.16568
QTo, monotone64.23857.291+6.9471.12126
QTo, paired71.10557.291+13.8141.24112
T8s, all flops31.54452.334-20.7900.60274
T8s, rainbow, ten or higher25.62052.334-26.7140.48955
T8s, rainbow, nine or lower44.01352.334-8.3210.84100
T8s, two-tone33.21752.334-19.1170.63471
T8s, monotone35.76252.334-16.5720.68334
T8s, paired28.89552.334-23.4390.55213

Does a shared suit matter?

Two kinds of deal exist here. In 12 of them the hands share a suit and QTo holds 69.49%. In 24 they do not, and it holds 67.94%. QTo does better with a shared suit, by 1.55 points.

QTo against T8s by suit overlap, in percent
DealsSpecific dealsShare of dealsQTo winsTiesT8s winsQTo equity
Share a suit1233.3367.3674.24528.38869.490
No shared suit2466.6765.9074.06430.02967.939

How often this matchup comes up

How often does it happen? 36 of the 1,624,350 ordered deals (0.0022%) are QTo against T8s, and 72 (0.0044%) if either hand may sit in either seat.

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average QTo takes back $136.92 of it, which is $36.92 more than it put in, and T8s takes back $63.08, $36.92 less than it put in.

Think in thousands: about 664 of 1,000 go to QTo, about 295 go to T8s, and about 41 are chopped.

The same matchup from the other side

T8s versus QTo is this same page seen from the other hand: 31.54% for T8s, 68.46% for QTo.

The calculator link fills in QsTh against Td8d, a deal where the two hands share no suit. Change any card to test your own hand. The neighboring matchups below swap one of the two hands for one of similar strength.

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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