ATs vs QTo: preflop equity

If ATs and QTo get all the chips in before the flop, ATs owns 73.76% of the pot in the long run and QTo owns 26.24%.

ATs

73.76%

Wins 72.85%, ties 1.82%

QTo

26.24%

Wins 25.33%, ties 1.82%

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

ATs against QTo: the numbers

Exact preflop results for ATs against QTo, in percent
HandWinsTiesLosesEquity
ATs72.8521.82325.32573.763
QTo25.3251.82372.85226.237

Here a suited hand (ATs) meets an offsuit hand (QTo). Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up.

ATs is well ahead, and QTo needs a specific kind of board to catch up. A split pot comes up on 1.82% of boards, so the wins and the equity differ by half of that.

Ranked by equity against a random hand, ATs is number 13 of the 169 starting hands and QTo is number 47.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
ATs44,908,0001,124,00015,611,000
QTo15,611,0001,124,00044,908,000

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.

ATs against QTo read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
ATs2.8111.3733.9490.356
QTo0.3563.9491.3732.811

The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call.

Who is ahead on which flops

Across the five flop textures ATs' equity moves by 18.14 points, from 66.22% on monotone flops to 84.36% on low rainbow flops (nine high or lower). ATs stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

ATs against QTo by flop texture, in percent
FlopShare of flopsATs winsTiesQTo winsATs equity
Rainbow, ten or higher23.17768.7931.40029.80769.493
Rainbow, nine or lower7.77182.9752.76614.25984.358
Two-tone46.52772.7151.60025.68573.515
Monotone5.19264.6733.09632.23166.221
Paired17.33376.5572.18221.26177.648

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

Start from the random-hand figures, 64.60% for ATs and 57.29% for QTo. This opponent changes them by +9.16 and -31.05 points.

ATs and QTo here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
ATs, all flops73.76364.602+9.1611.14181
ATs, rainbow, ten or higher69.49364.602+4.8911.07571
ATs, rainbow, nine or lower84.35864.602+19.7561.30581
ATs, two-tone73.51564.602+8.9131.13797
ATs, monotone66.22164.602+1.6191.02506
ATs, paired77.64864.602+13.0461.20194
QTo, all flops26.23757.291-31.0540.45796
QTo, rainbow, ten or higher30.50757.291-26.7840.53249
QTo, rainbow, nine or lower15.64257.291-41.6490.27303
QTo, two-tone26.48557.291-30.8060.46229
QTo, monotone33.77957.291-23.5120.58960
QTo, paired22.35257.291-34.9390.39015

Does a shared suit matter?

Two kinds of deal exist here. In 12 of them the hands share a suit and ATs holds 73.51%. In 24 they do not, and it holds 73.89%. ATs does better with no shared suit, by 0.38 points.

ATs against QTo by suit overlap, in percent
DealsSpecific dealsShare of dealsATs winsTiesQTo winsATs equity
Share a suit1233.3372.5591.91025.53173.514
No shared suit2466.6772.9981.77925.22373.888

How often this matchup comes up

Exactly 36 specific deals fit this matchup in one seat order, which is 0.0022% of 1,624,350; both orders together give 72, or 0.0044%.

A worked example

Try it with money: two players each put in $100 and the whole board runs out every possible way. ATs averages $147.52 from the $200, up $47.52; QTo averages $52.48, down $47.52.

A thousand deals look like this: ATs takes 729, QTo takes 253, 18 are ties.

The same matchup from the other side

Read it from the other side: QTo against ATs is the same matchup with the numbers swapped, so QTo holds 26.24% and ATs holds 73.76%. That address sends you back to this page.

Open the calculator with AsTs against QhTd 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

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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