66 vs K9o: preflop equity

Dealt all in against each other, 66 takes 54.82% of the pot on average and K9o takes the other 45.18%.

66

54.82%

Wins 54.59%, ties 0.47%

K9o

45.18%

Wins 44.94%, ties 0.47%

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

66 against K9o: the numbers

Exact preflop results for 66 against K9o, in percent
HandWinsTiesLosesEquity
6654.5860.46544.94954.819
K9o44.9490.46554.58645.181

The matchup pits a pocket pair against an offsuit hand. A pair against two higher cards is the classic race: the pair is usually a small favorite or close to even, and each overcard that pairs is a way to take the lead.

66 leads by less than 10 points of equity, so the result of any one deal is close to a toss-up. The tie share is 0.47%: on those boards the pot is chopped and neither hand wins outright.

In the ranking of all 169 starting hands, 66 is number 17 and K9o is number 40.

Boards behind the percentages: 123,285,888 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
6667,297,000573,00055,416,000
K9o55,416,000573,00067,297,000

Exact total: 72 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.

66 against K9o read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
661.2131.8322.2250.824
K9o0.8242.2251.8321.213

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

Split by what the flop looks like, 66 peaks at 64.58% on low rainbow flops (nine high or lower) and bottoms out at 51.48% on monotone flops. 66 stays ahead on all five textures.

66 against K9o by flop texture, in percent
FlopShare of flops66 winsTiesK9o wins66 equity
Rainbow, ten or higher25.34152.0830.24647.67152.206
Rainbow, nine or lower5.68964.2620.63135.10764.577
Two-tone46.48553.9770.30645.71754.130
Monotone5.15150.5941.76447.64251.476
Paired17.33457.8920.77041.33858.277

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 -8.47 points for 66, from 63.29%, and -12.63 for K9o, from 57.81%.

66 and K9o here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
66, all flops54.81963.285-8.4660.86622
66, rainbow, ten or higher52.20663.285-11.0790.82493
66, rainbow, nine or lower64.57763.285+1.2921.02042
66, two-tone54.13063.285-9.1550.85534
66, monotone51.47663.285-11.8090.81340
66, paired58.27763.285-5.0080.92087
K9o, all flops45.18157.812-12.6310.78152
K9o, rainbow, ten or higher47.79457.812-10.0180.82671
K9o, rainbow, nine or lower35.42357.812-22.3890.61273
K9o, two-tone45.87057.812-11.9420.79343
K9o, monotone48.52457.812-9.2880.83934
K9o, paired41.72357.812-16.0890.72170

Does a shared suit matter?

Looking only at deals where the hands share a suit, 66 has 54.74%; looking only at deals where they do not, 55.22%. 66 does better with no shared suit, by 0.48 points.

66 against K9o by suit overlap, in percent
DealsSpecific dealsShare of deals66 winsTiesK9o wins66 equity
Share a suit6083.3354.4980.48045.02254.738
No shared suit1216.6755.0300.38844.58255.224

How often this matchup comes up

This page stands for 72 specific-card matchups (0.0044% of 1,624,350 ordered deals), or 144 once you count the seats both ways (0.0089%).

A worked example

A $100 all-in from each player makes a $200 pot, and the exact equity says 66 gets $109.64 of it on average and K9o gets $90.36.

Run 1,000 deals and the tally comes out near 546 for 66, 449 for K9o and 5 ties.

The same matchup from the other side

If you came looking for K9o against 66, the numbers are the same with the hands swapped: 45.18% and 54.82%.

Try 6s6h against Kd9c in the calculator: the hands share no suit, and every card can be changed. The links after it are the closest matchups in the ranking.

How this was computed

We counted every case. Each suit pattern of the 72 specific 66 against K9o 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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