AJs vs 65s: preflop equity

Over all 1,712,304 boards that can follow this deal, AJs finishes with 61.56% of the pot and 65s with 38.44%.

AJs

61.56%

Wins 61.31%, ties 0.51%

65s

38.44%

Wins 38.18%, ties 0.51%

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

AJs against 65s: the numbers

Exact preflop results for AJs against 65s, in percent
HandWinsTiesLosesEquity
AJs61.3090.50838.18361.563
65s38.1830.50861.30938.437

This is a contest between two suited hands, AJs and 65s. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other.

AJs is ahead, but 65s is far from dead: it takes 382 of every 1,000 deals outright. A split pot comes up on 0.51% of boards, so the wins and the equity differ by half of that.

Place 11 of 169 belongs to AJs and place 128 belongs to 65s in the ranking against a random hand.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AJs16,797,000139,00010,461,000
65s10,461,000139,00016,797,000

The total is exact: 16 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand.

AJs against 65s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AJs1.6021.6312.6190.624
65s0.6242.6191.6311.602

In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity.

Who is ahead on which flops

Rainbow flops topped by a ten or better are the best for AJs (68.91%); low rainbow flops (nine high or lower) are the worst (32.82%). On low rainbow flops (nine high or lower) the numbers flip and 65s is the one ahead.

AJs against 65s by flop texture, in percent
FlopShare of flopsAJs winsTies65s winsAJs equity
Rainbow, ten or higher24.59568.8290.16831.00368.913
Rainbow, nine or lower6.31432.4410.75566.80432.818
Two-tone46.72760.6770.26439.05960.809
Monotone5.27357.3173.46539.21859.049
Paired17.09164.1140.65735.22964.443

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 -3.83 points for AJs, from 65.39%, and -4.69 for 65s, from 43.13%.

AJs and 65s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AJs, all flops61.56365.393-3.8300.94143
AJs, rainbow, ten or higher68.91365.393+3.5201.05383
AJs, rainbow, nine or lower32.81865.393-32.5750.50186
AJs, two-tone60.80965.393-4.5840.92990
AJs, monotone59.04965.393-6.3440.90299
AJs, paired64.44365.393-0.9500.98547
65s, all flops38.43743.133-4.6960.89113
65s, rainbow, ten or higher31.08743.133-12.0460.72072
65s, rainbow, nine or lower67.18243.133+24.0491.55755
65s, two-tone39.19143.133-3.9420.90861
65s, monotone40.95143.133-2.1820.94941
65s, paired35.55743.133-7.5760.82436

Does a shared suit matter?

Suit overlap shows up in the numbers. With a suit in common AJs has 63.70% equity, and with none in common it has 60.85%. AJs does better with a shared suit, by 2.85 points.

AJs against 65s by suit overlap, in percent
DealsSpecific dealsShare of dealsAJs winsTies65s winsAJs equity
Share a suit425.0063.4040.58736.00963.698
No shared suit1275.0060.6110.48138.90860.852

How often this matchup comes up

This page stands for 16 specific-card matchups (0.0010% of 1,624,350 ordered deals), or 32 once you count the seats both ways (0.0020%).

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average AJs takes back $123.12 of it, which is $23.12 more than it put in, and 65s takes back $76.88, $23.12 less than it put in.

Over a long run, 1,000 deals split into about 613 for AJs, 382 for 65s and 5 tied.

The same matchup from the other side

65s versus AJs is this same page seen from the other hand: 38.44% for 65s, 61.56% for AJs.

AsJs against 6h5h is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength.

How this was computed

We counted every case. Each suit pattern of the 16 specific AJs against 65s deals meets all 1,712,304 boards, and the better five-card hand wins; a split pot is half a win each. The flop table reads each board under all ten of its three-card flops.

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

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