88 vs KJs: preflop equity

Counting every board, the equity split is 51.40% for 88 and 48.60% for KJs, so 88 leads by 2.80 points.

88

51.40%

Wins 51.19%, ties 0.43%

KJs

48.60%

Wins 48.38%, ties 0.43%

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

88 against KJs: the numbers

Exact preflop results for 88 against KJs, in percent
HandWinsTiesLosesEquity
8851.1870.42848.38551.401
KJs48.3850.42851.18748.599

One side is a pocket pair, the other is a suited 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.

This is close to even money, with 88 a little ahead. A split pot comes up on 0.43% of boards, so the wins and the equity differ by half of that.

In the ranking of all 169 starting hands, 88 is number 7 and KJs is number 20.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
8821,035,000176,00019,884,000
KJs19,884,000176,00021,035,000

Exact total: 24 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.

88 against KJs read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
881.0581.9542.0670.945
KJs0.9452.0671.9541.058

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

Low rainbow flops (nine high or lower) are the best for 88 (77.99%); rainbow flops topped by a ten or better are the worst (44.70%). KJs is ahead on rainbow flops topped by a ten or better and two-tone flops, even though it trails 88 when every flop is counted.

88 against KJs by flop texture, in percent
FlopShare of flops88 winsTiesKJs wins88 equity
Rainbow, ten or higher24.59544.6030.19055.20744.698
Rainbow, nine or lower6.31477.5760.82621.59877.989
Two-tone46.54549.2110.29650.49349.359
Monotone5.21249.5522.39748.05150.751
Paired17.33456.7180.38042.90256.908

A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank.

Compared with a random hand

Compared with a random opponent, this matchup shifts 88 from 69.16% by -17.76 points and KJs from 62.57% by -13.97 points.

88 and KJs here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
88, all flops51.40169.163-17.7620.74319
88, rainbow, ten or higher44.69869.163-24.4650.64627
88, rainbow, nine or lower77.98969.163+8.8261.12761
88, two-tone49.35969.163-19.8040.71366
88, monotone50.75169.163-18.4120.73379
88, paired56.90869.163-12.2550.82281
KJs, all flops48.59962.567-13.9680.77675
KJs, rainbow, ten or higher55.30262.567-7.2650.88388
KJs, rainbow, nine or lower22.01162.567-40.5560.35180
KJs, two-tone50.64162.567-11.9260.80939
KJs, monotone49.24962.567-13.3180.78714
KJs, paired43.09262.567-19.4750.68873

Does a shared suit matter?

Of the deals of this matchup, 12 share a suit (88 at 51.57%) and 12 do not (51.24%). 88 does better with a shared suit, by 0.33 points.

88 against KJs by suit overlap, in percent
DealsSpecific dealsShare of deals88 winsTiesKJs wins88 equity
Share a suit1250.0051.3290.47148.20051.565
No shared suit1250.0051.0450.38548.57051.238

How often this matchup comes up

Counting specific cards, 88 against KJs appears in 24 of the 1,624,350 ordered heads-up deals (0.0015%), and in 48 when the seats are swapped too (0.0030%).

A worked example

Worked example: both players commit $100, so $200 sits in the middle. Over every board, 88's average share is $102.80 (a gain of $2.80) and KJs' is $97.20 (a loss of $2.80).

In 1,000 deals of exactly this matchup, expect about 512 won outright by 88, about 484 won outright by KJs and about 4 split.

The same matchup from the other side

Swap the hands and you get KJs with 48.60% against 88 with 51.40%. We keep one page per matchup, with the better-ranked hand first.

Open the calculator with 8s8h against KdJd 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 page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 24 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows.

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

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