QJs vs A5s: preflop equity

Averaged over every possible board, A5s is ahead of QJs by 12.02 points of equity, 56.01% to 43.99%.

QJs

43.99%

Wins 43.73%, ties 0.51%

A5s

56.01%

Wins 55.76%, ties 0.51%

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

QJs against A5s: the numbers

Exact preflop results for QJs against A5s, in percent
HandWinsTiesLosesEquity
QJs43.7300.51355.75743.987
A5s55.7570.51343.73056.013

This is a contest between two suited hands, QJs and A5s. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

A5s is ahead, but QJs is far from dead: it takes 437 of every 1,000 deals outright. Split pots make up 0.51% of the boards, and both equity figures count them as half a win each.

By strength against a random hand, QJs holds place 28 of 169 and A5s holds place 30.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
QJs11,981,000141,00015,276,000
A5s15,276,000141,00011,981,000

The board total is exact, 16 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.

QJs against A5s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
QJs0.7852.2871.7931.273
A5s1.2731.7932.2870.785

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

By flop texture, A5s' equity runs from 49.68% on rainbow flops topped by a ten or better up to 73.80% on low rainbow flops (nine high or lower). Rainbow flops topped by a ten or better favor QJs, the hand that is behind overall.

QJs against A5s by flop texture, in percent
FlopShare of flopsQJs winsTiesA5s winsQJs equity
Rainbow, ten or higher23.86750.2630.11349.62450.319
Rainbow, nine or lower7.04225.7220.96173.31726.202
Two-tone46.72745.0380.27754.68545.177
Monotone5.27344.5623.43352.00546.279
Paired17.09138.1960.63261.17238.512

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

The table below sets each hand against its own random-hand baseline: a change of -16.27 points for QJs, from 60.26%, and -3.91 for A5s, from 59.92%.

QJs and A5s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
QJs, all flops43.98760.259-16.2720.72997
QJs, rainbow, ten or higher50.31960.259-9.9400.83505
QJs, rainbow, nine or lower26.20260.259-34.0570.43482
QJs, two-tone45.17760.259-15.0820.74971
QJs, monotone46.27960.259-13.9800.76800
QJs, paired38.51260.259-21.7470.63911
A5s, all flops56.01359.923-3.9100.93475
A5s, rainbow, ten or higher49.68159.923-10.2420.82908
A5s, rainbow, nine or lower73.79859.923+13.8751.23155
A5s, two-tone54.82359.923-5.1000.91489
A5s, monotone53.72159.923-6.2020.89650
A5s, paired61.48859.923+1.5651.02612

Does a shared suit matter?

When the hands share a suit, A5s holds 57.78%; when they do not, it holds 55.42%. A5s does better with a shared suit, by 2.36 points.

QJs against A5s by suit overlap, in percent
DealsSpecific dealsShare of dealsQJs winsTiesA5s winsQJs equity
Share a suit425.0041.9220.59457.48442.219
No shared suit1275.0044.3330.48655.18144.576

How often this matchup comes up

Out of 1,624,350 ways to deal two seats two cards each, 16 are QJs in one seat and A5s in the other (0.0010%); with the seats swapped too, 32 (0.0020%).

A worked example

To see what the equity is worth, imagine $100 each in a $200 pot. A5s is worth $112.02 on average (+$12.02); QJs is worth $87.98 (-$12.02).

Per 1,000 deals: A5s wins about 558, QJs wins about 437, and about 5 end in a split pot.

The same matchup from the other side

One page covers both views. From A5s' side the equity is 56.01%, and from QJs' side it is 43.99%.

Open the calculator with QsJs against Ah5h 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

This is an exact count with no sampling. For the 16 ways to deal one QJs and one A5s 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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