A3s vs QTo: preflop equity

Before any board card is dealt, A3s holds 58.24% equity against QTo, which leaves QTo with 41.76%.

A3s

58.24%

Wins 58.00%, ties 0.48%

QTo

41.76%

Wins 41.52%, ties 0.48%

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

A3s against QTo: the numbers

Exact preflop results for A3s against QTo, in percent
HandWinsTiesLosesEquity
A3s58.0030.48341.51458.244
QTo41.5140.48358.00341.756

The first hand is a suited hand; the second is an offsuit hand. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.

A3s is ahead, but QTo is far from dead: it takes 415 of every 1,000 deals outright. A split pot comes up on 0.48% of boards, so the wins and the equity differ by half of that.

The hand ranking puts A3s at 38 and QTo at 47 out of 169 starting hands.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A3s47,673,000397,00034,121,000
QTo34,121,000397,00047,673,000

Exact total: 48 deals times 1,712,304 boards. The other three counts come from the five-decimal percentages and are rounded to the nearest thousand, so read them as approximate.

A3s against QTo read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A3s1.3951.7242.4090.717
QTo0.7172.4091.7241.395

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

A3s prefers low rainbow flops (nine high or lower), where it holds 74.31%, and likes rainbow flops topped by a ten or better least, where it holds 50.72%. A3s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

A3s against QTo by flop texture, in percent
FlopShare of flopsA3s winsTiesQTo winsA3s equity
Rainbow, ten or higher23.98850.6420.15949.19950.722
Rainbow, nine or lower7.04273.8400.93225.22874.306
Two-tone46.66757.6770.30842.01557.831
Monotone5.21254.0932.39943.50855.292
Paired17.09163.8880.64535.46764.211

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

Each hand has a baseline against a random hand: 58.22% for A3s, 57.29% for QTo. Here the change is +0.02 and -15.53 points.

A3s and QTo here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A3s, all flops58.24458.220+0.0241.00041
A3s, rainbow, ten or higher50.72258.220-7.4980.87121
A3s, rainbow, nine or lower74.30658.220+16.0861.27630
A3s, two-tone57.83158.220-0.3890.99332
A3s, monotone55.29258.220-2.9280.94971
A3s, paired64.21158.220+5.9911.10290
QTo, all flops41.75657.291-15.5350.72884
QTo, rainbow, ten or higher49.27857.291-8.0130.86014
QTo, rainbow, nine or lower25.69457.291-31.5970.44848
QTo, two-tone42.16957.291-15.1220.73605
QTo, monotone44.70857.291-12.5830.78037
QTo, paired35.78957.291-21.5020.62469

Does a shared suit matter?

The suit split reads 57.89% for A3s with a shared suit and 58.60% without one. A3s does better with no shared suit, by 0.71 points.

A3s against QTo by suit overlap, in percent
DealsSpecific dealsShare of dealsA3s winsTiesQTo winsA3s equity
Share a suit2450.0057.6300.52541.84557.892
No shared suit2450.0058.3750.44141.18458.596

How often this matchup comes up

This page stands for 48 specific-card matchups (0.0030% of 1,624,350 ordered deals), or 96 once you count the seats both ways (0.0059%).

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average A3s takes back $116.48 of it, which is $16.48 more than it put in, and QTo takes back $83.52, $16.48 less than it put in.

A thousand deals look like this: A3s takes 580, QTo takes 415, 5 are ties.

The same matchup from the other side

The mirror image, QTo against A3s, is 41.76% to 58.24%, and its address redirects to this page.

Try As3s against QhTd 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

Method: exact enumeration. The 48 specific deals are grouped by suit pattern, each is run against all 1,712,304 boards, and both seven-card hands are scored. Equity adds half of every tie, and flop textures are tallied over the ten flops inside each board.

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

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