QJo vs A2s: preflop equity

In equity, A2s against QJo stands at 58.48% to 41.52%, a gap of 16.96 points.

QJo

41.52%

Wins 41.27%, ties 0.51%

A2s

58.48%

Wins 58.22%, ties 0.51%

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

QJo against A2s: the numbers

Exact preflop results for QJo against A2s, in percent
HandWinsTiesLosesEquity
QJo41.2670.50658.22741.520
A2s58.2270.50641.26758.480

QJo is an offsuit hand and A2s is a suited hand. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.

The lead is steady rather than large, and the flop still has plenty of say in who wins. Split pots make up 0.51% of the boards, and both equity figures count them as half a win each.

Among the 169 starting hands, QJo is number 39 and A2s is number 46 by strength against a random hand.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
QJo33,918,000416,00047,857,000
A2s47,857,000416,00033,918,000

The board total is exact, 48 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.

QJo against A2s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
QJo0.7102.4231.7171.408
A2s1.4081.7172.4230.710

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

Split by what the flop looks like, A2s peaks at 75.57% on low rainbow flops (nine high or lower) and bottoms out at 50.71% on rainbow flops topped by a ten or better. A2s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

QJo against A2s by flop texture, in percent
FlopShare of flopsQJo winsTiesA2s winsQJo equity
Rainbow, ten or higher23.98849.2290.11950.65249.289
Rainbow, nine or lower7.04223.8181.21574.96724.426
Two-tone46.66741.7450.33557.92041.912
Monotone5.21243.3192.41454.26744.526
Paired17.09135.3490.64564.00635.672

Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank.

Compared with a random hand

How much does the opponent matter? Compared with its random-hand 58.14%, QJo changes by -16.62 points, and A2s, from 57.38%, by +1.10.

QJo and A2s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
QJo, all flops41.52058.135-16.6150.71420
QJo, rainbow, ten or higher49.28958.135-8.8460.84784
QJo, rainbow, nine or lower24.42658.135-33.7090.42016
QJo, two-tone41.91258.135-16.2230.72094
QJo, monotone44.52658.135-13.6090.76591
QJo, paired35.67258.135-22.4630.61361
A2s, all flops58.48057.379+1.1011.01919
A2s, rainbow, ten or higher50.71157.379-6.6680.88379
A2s, rainbow, nine or lower75.57457.379+18.1951.31710
A2s, two-tone58.08857.379+0.7091.01236
A2s, monotone55.47457.379-1.9050.96680
A2s, paired64.32857.379+6.9491.12111

Does a shared suit matter?

Split by suits, the deals give A2s 58.13% when the hands overlap in a suit and 58.83% when they do not. A2s does better with no shared suit, by 0.70 points.

QJo against A2s by suit overlap, in percent
DealsSpecific dealsShare of dealsQJo winsTiesA2s winsQJo equity
Share a suit2450.0041.5970.54857.85541.871
No shared suit2450.0040.9360.46558.59941.169

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

To see what the equity is worth, imagine $100 each in a $200 pot. A2s is worth $116.96 on average (+$16.96); QJo is worth $83.04 (-$16.96).

Per 1,000 deals: A2s wins about 582, QJo wins about 413, and about 5 end in a split pot.

The same matchup from the other side

One page covers both views. From A2s' side the equity is 58.48%, and from QJo's side it is 41.52%.

The calculator link fills in QsJh against Ad2d, 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

This is an exact count with no sampling. For the 48 ways to deal one QJo and one A2s without reusing a card, grouped by suit pattern, every one of the 1,712,304 possible boards is dealt and both seven-card hands are compared. A tie counts as half a win in the equity column, and each board is counted once under each of its ten three-card flops.

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

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