ATo vs QTs: preflop equity

Over all 1,712,304 boards that can follow this deal, ATo finishes with 68.61% of the pot and QTs with 31.39%.

ATo

68.61%

Wins 67.69%, ties 1.83%

QTs

31.39%

Wins 30.48%, ties 1.83%

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

ATo against QTs: the numbers

Exact preflop results for ATo against QTs, in percent
HandWinsTiesLosesEquity
ATo67.6931.83430.47368.610
QTs30.4731.83467.69331.390

ATo and QTs are an offsuit hand and a suited hand, in that order. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up.

That is a clear edge, 68.61% to 31.39%, but QTs still wins often enough that one hand proves nothing. Of every 100 boards, about 1.83 are split pots, and the equity figures already include them.

Ranked by equity against a random hand, ATo is number 19 of the 169 starting hands and QTs is number 34.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
ATo41,728,0001,131,00018,784,000
QTs18,784,0001,131,00041,728,000

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.

ATo against QTs read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
ATo2.1861.4773.2820.458
QTs0.4583.2821.4772.186

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

Break the boards down by their first three cards and ATo is strongest on low rainbow flops (nine high or lower) (80.74%) and weakest on monotone flops (64.20%). ATo stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

ATo against QTs by flop texture, in percent
FlopShare of flopsATo winsTiesQTs winsATo equity
Rainbow, ten or higher23.17765.7671.40632.82766.470
Rainbow, nine or lower7.77179.3552.76817.87780.739
Two-tone46.52765.8531.61632.53166.661
Monotone5.19262.6353.12134.24464.196
Paired17.33371.4942.18726.31972.587

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

Compared with a random opponent, this matchup shifts ATo from 62.72% by +5.89 points and QTs from 59.47% by -28.08 points.

ATo and QTs here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
ATo, all flops68.61062.722+5.8881.09387
ATo, rainbow, ten or higher66.47062.722+3.7481.05976
ATo, rainbow, nine or lower80.73962.722+18.0171.28725
ATo, two-tone66.66162.722+3.9391.06280
ATo, monotone64.19662.722+1.4741.02350
ATo, paired72.58762.722+9.8651.15728
QTs, all flops31.39059.468-28.0780.52785
QTs, rainbow, ten or higher33.53059.468-25.9380.56383
QTs, rainbow, nine or lower19.26159.468-40.2070.32389
QTs, two-tone33.33959.468-26.1290.56062
QTs, monotone35.80459.468-23.6640.60207
QTs, paired27.41359.468-32.0550.46097

Does a shared suit matter?

Does suit overlap move the numbers? ATo has 69.64% when the hands share a suit and 68.09% when they do not. ATo does better with a shared suit, by 1.55 points.

ATo against QTs by suit overlap, in percent
DealsSpecific dealsShare of dealsATo winsTiesQTs winsATo equity
Share a suit1233.3368.6861.91029.40469.641
No shared suit2466.6767.1961.79631.00868.094

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

A $100 all-in from each player makes a $200 pot, and the exact equity says ATo gets $137.22 of it on average and QTs gets $62.78.

Scaled to 1,000 deals, that is roughly 677 wins for ATo, 305 for QTs and 18 chopped pots.

The same matchup from the other side

One page covers both views. From QTs' side the equity is 31.39%, and from ATo's side it is 68.61%.

AsTh against QdTd is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength.

How this was computed

All 1,712,304 five-card boards are dealt for every suit pattern among the 36 specific deals of ATo against QTs, and both hands are scored on each. That is a full count, so the percentages are exact. Ties are half a win each, and each board appears once per flop it contains.

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

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