KTs vs 87s: preflop equity

Averaged over every possible board, KTs is ahead of 87s by 24.24 points of equity, 62.12% to 37.88%.

KTs

62.12%

Wins 61.79%, ties 0.67%

87s

37.88%

Wins 37.54%, ties 0.67%

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

KTs against 87s: the numbers

Exact preflop results for KTs against 87s, in percent
HandWinsTiesLosesEquity
KTs61.7880.66837.54462.122
87s37.5440.66861.78837.878

The matchup is suited hands on both sides, KTs against 87s. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

A 24.24 point lead is real, and 87s still takes about 375 of every 1,000 deals outright. The tie share is 0.67%: on those boards the pot is chopped and neither hand wins outright.

The hand ranking puts KTs at 22 and 87s at 100 out of 169 starting hands.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
KTs16,928,000183,00010,286,000
87s10,286,000183,00016,928,000

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.

KTs against 87s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
KTs1.6401.6182.6640.610
87s0.6102.6641.6181.640

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. KTs does best on rainbow flops topped by a ten or better, at 68.56%, and worst on low rainbow flops (nine high or lower), at 38.09%. The lead reverses on low rainbow flops (nine high or lower): there 87s is the favorite even though KTs is ahead overall.

KTs against 87s by flop texture, in percent
FlopShare of flopsKTs winsTies87s winsKTs equity
Rainbow, ten or higher24.59568.3960.32931.27568.560
Rainbow, nine or lower6.31437.9030.38161.71638.094
Two-tone46.72761.2950.31438.39161.452
Monotone5.27357.6593.45438.88759.386
Paired17.09163.7251.37034.90564.410

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

Each hand has a baseline against a random hand: 61.79% for KTs, 47.94% for 87s. Here the change is +0.33 and -10.06 points.

KTs and 87s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
KTs, all flops62.12261.789+0.3331.00539
KTs, rainbow, ten or higher68.56061.789+6.7711.10958
KTs, rainbow, nine or lower38.09461.789-23.6950.61652
KTs, two-tone61.45261.789-0.3370.99455
KTs, monotone59.38661.789-2.4030.96111
KTs, paired64.41061.789+2.6211.04242
87s, all flops37.87847.936-10.0580.79018
87s, rainbow, ten or higher31.44047.936-16.4960.65587
87s, rainbow, nine or lower61.90647.936+13.9701.29143
87s, two-tone38.54847.936-9.3880.80416
87s, monotone40.61447.936-7.3220.84725
87s, paired35.59047.936-12.3460.74245

Does a shared suit matter?

The suit split reads 64.39% for KTs with a shared suit and 61.37% without one. KTs does better with a shared suit, by 3.02 points.

KTs against 87s by suit overlap, in percent
DealsSpecific dealsShare of dealsKTs winsTies87s winsKTs equity
Share a suit425.0064.0160.75435.23064.393
No shared suit1275.0061.0450.64038.31561.365

How often this matchup comes up

How often does it happen? 16 of the 1,624,350 ordered deals (0.0010%) are KTs against 87s, and 32 (0.0020%) if either hand may sit in either seat.

A worked example

Try it with money: two players each put in $100 and the whole board runs out every possible way. KTs averages $124.24 from the $200, up $24.24; 87s averages $75.76, down $24.24.

Out of 1,000 deals you should see around 618 outright wins for KTs, 375 for 87s, and 7 split pots.

The same matchup from the other side

Read it from the other side: 87s against KTs is the same matchup with the numbers swapped, so 87s holds 37.88% and KTs holds 62.12%. That address sends you back to this page.

The calculator link fills in KsTs against 8h7h, 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

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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