AKs vs 65s: preflop equity

Over all 1,712,304 boards that can follow this deal, AKs finishes with 61.10% of the pot and 65s with 38.90%.

AKs

61.10%

Wins 60.84%, ties 0.52%

65s

38.90%

Wins 38.64%, ties 0.52%

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

AKs against 65s: the numbers

Exact preflop results for AKs against 65s, in percent
HandWinsTiesLosesEquity
AKs60.8360.51738.64761.095
65s38.6470.51760.83638.905

Each side holds one of the suited hands: AKs and 65s. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

A 22.20 point lead is real, and 65s still takes about 387 of every 1,000 deals outright. Of every 100 boards, about 0.52 are split pots, and the equity figures already include them.

By strength against a random hand, AKs holds place 8 of 169 and 65s holds place 128.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AKs16,667,000142,00010,588,000
65s10,588,000142,00016,667,000

16 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand.

AKs against 65s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AKs1.5701.6442.5880.637
65s0.6372.5881.6441.570

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 AKs (68.36%); low rainbow flops (nine high or lower) are the worst (32.06%). 65s takes over on low rainbow flops (nine high or lower), so the favorite before the flop is the underdog on those boards.

AKs against 65s by flop texture, in percent
FlopShare of flopsAKs winsTies65s winsAKs equity
Rainbow, ten or higher24.59568.2740.16131.56568.355
Rainbow, nine or lower6.31431.6240.86167.51532.055
Two-tone46.72760.1540.27639.57060.292
Monotone5.27356.9473.47139.58258.682
Paired17.09163.9880.64935.36364.313

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

Compared with a random opponent, this matchup shifts AKs from 67.05% by -5.95 points and 65s from 43.13% by -4.23 points.

AKs and 65s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AKs, all flops61.09567.045-5.9500.91125
AKs, rainbow, ten or higher68.35567.045+1.3101.01954
AKs, rainbow, nine or lower32.05567.045-34.9900.47811
AKs, two-tone60.29267.045-6.7530.89928
AKs, monotone58.68267.045-8.3630.87526
AKs, paired64.31367.045-2.7320.95925
65s, all flops38.90543.133-4.2280.90198
65s, rainbow, ten or higher31.64543.133-11.4880.73366
65s, rainbow, nine or lower67.94543.133+24.8121.57524
65s, two-tone39.70843.133-3.4250.92059
65s, monotone41.31843.133-1.8150.95792
65s, paired35.68743.133-7.4460.82737

Does a shared suit matter?

Of the deals of this matchup, 4 share a suit (AKs at 63.18%) and 12 do not (60.40%). AKs does better with a shared suit, by 2.78 points.

AKs against 65s by suit overlap, in percent
DealsSpecific dealsShare of dealsAKs winsTies65s winsAKs equity
Share a suit425.0062.8840.59736.51963.183
No shared suit1275.0060.1540.49039.35660.399

How often this matchup comes up

The class pair covers 16 combinations of specific cards in a fixed seat order, 0.0010% of 1,624,350, and 32 (0.0020%) in either order.

A worked example

To see what the equity is worth, imagine $100 each in a $200 pot. AKs is worth $122.20 on average (+$22.20); 65s is worth $77.80 (-$22.20).

Over a long run, 1,000 deals split into about 608 for AKs, 387 for 65s and 5 tied.

The same matchup from the other side

One page covers both views. From 65s' side the equity is 38.90%, and from AKs' side it is 61.10%.

The calculator link fills in AsKs against 6h5h, 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

Method: exact enumeration. The 16 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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