AJs vs 53s: preflop equity

Dealt all in against each other, AJs takes 62.76% of the pot on average and 53s takes the other 37.24%.

AJs

62.76%

Wins 62.48%, ties 0.55%

53s

37.24%

Wins 36.97%, ties 0.55%

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

AJs against 53s: the numbers

Exact preflop results for AJs against 53s, in percent
HandWinsTiesLosesEquity
AJs62.4820.55436.96462.759
53s36.9640.55462.48237.241

AJs and 53s are both suited hands. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

A 25.52 point lead is real, and 53s still takes about 370 of every 1,000 deals outright. The tie share is 0.55%: on those boards the pot is chopped and neither hand wins outright.

Place 11 of 169 belongs to AJs and place 146 belongs to 53s in the ranking against a random hand.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AJs17,118,000152,00010,127,000
53s10,127,000152,00017,118,000

Exact total: 16 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.

AJs against 53s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AJs1.6851.6002.7050.593
53s0.5932.7051.6001.685

The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity.

Who is ahead on which flops

The flop changes the picture. AJs does best on rainbow flops topped by a ten or better, at 69.37%, and worst on low rainbow flops (nine high or lower), at 37.32%. Watch for low rainbow flops (nine high or lower): on those flops 53s holds the better equity.

AJs against 53s by flop texture, in percent
FlopShare of flopsAJs winsTies53s winsAJs equity
Rainbow, ten or higher24.59569.2720.19030.53869.367
Rainbow, nine or lower6.31436.8440.94462.21237.316
Two-tone46.72761.7620.31237.92661.918
Monotone5.27358.0633.56138.37659.844
Paired17.09165.5140.66933.81765.849

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

Relative to a random opponent, AJs changes by -2.63 points (baseline 65.39%) and 53s by -2.45 points (baseline 39.69%).

AJs and 53s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AJs, all flops62.75965.393-2.6340.95972
AJs, rainbow, ten or higher69.36765.393+3.9741.06077
AJs, rainbow, nine or lower37.31665.393-28.0770.57064
AJs, two-tone61.91865.393-3.4750.94686
AJs, monotone59.84465.393-5.5490.91514
AJs, paired65.84965.393+0.4561.00697
53s, all flops37.24139.693-2.4520.93823
53s, rainbow, ten or higher30.63339.693-9.0600.77175
53s, rainbow, nine or lower62.68439.693+22.9911.57922
53s, two-tone38.08239.693-1.6110.95941
53s, monotone40.15639.693+0.4631.01166
53s, paired34.15139.693-5.5420.86038

Does a shared suit matter?

Suit overlap shows up in the numbers. With a suit in common AJs has 65.07% equity, and with none in common it has 61.99%. AJs does better with a shared suit, by 3.08 points.

AJs against 53s by suit overlap, in percent
DealsSpecific dealsShare of dealsAJs winsTies53s winsAJs equity
Share a suit425.0064.7540.63334.61365.070
No shared suit1275.0061.7250.52837.74761.989

How often this matchup comes up

Counting specific cards, AJs against 53s appears in 16 of the 1,624,350 ordered heads-up deals (0.0010%), and in 32 when the seats are swapped too (0.0020%).

A worked example

With $100 from each side, the $200 pot is split on average as $125.52 for AJs and $74.48 for 53s; the first side gains $25.52 per all-in and the second gives up $25.52.

Think in thousands: about 625 of 1,000 go to AJs, about 370 go to 53s, and about 5 are chopped.

The same matchup from the other side

Swap the hands and you get 53s with 37.24% against AJs with 62.76%. We keep one page per matchup, with the better-ranked hand first.

Open the calculator with AsJs against 5h3h 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

The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 16 specific deals, with both seven-card hands compared each time. Equity gives half a win for a tie. For the flop rows, a board is counted once under each of the ten flops inside it.

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

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