JJ vs 86s: preflop equity

Over all 1,712,304 boards that can follow this deal, JJ finishes with 79.38% of the pot and 86s with 20.62%.

JJ

79.38%

Wins 79.19%, ties 0.38%

86s

20.62%

Wins 20.43%, ties 0.38%

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

JJ against 86s: the numbers

Exact preflop results for JJ against 86s, in percent
HandWinsTiesLosesEquity
JJ79.1880.38220.43079.379
86s20.4300.38279.18820.621

One side is a pocket pair, the other is a suited hand. Here a pair faces two cards that are both smaller, so the other hand needs to pair up and still be behind.

JJ is well ahead, and 86s needs a specific kind of board to catch up. Of every 100 boards, about 0.38 are split pots, and the equity figures already include them.

JJ ranks number 4 of 169 starting hands, and 86s ranks number 110, by equity against a random hand.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
JJ32,543,000157,0008,396,000
86s8,396,000157,00032,543,000

The board total is exact, 24 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.

JJ against 86s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
JJ3.8491.2634.8950.260
86s0.2604.8951.2633.849

The final column gives the least the pot must offer for each unit called for a call to break even at this equity.

Who is ahead on which flops

Across the five flop textures JJ's equity moves by 17.57 points, from 67.02% on low rainbow flops (nine high or lower) to 84.59% on rainbow flops topped by a ten or better. JJ stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

JJ against 86s by flop texture, in percent
FlopShare of flopsJJ winsTies86s winsJJ equity
Rainbow, ten or higher24.59584.5120.16515.32384.594
Rainbow, nine or lower6.31466.6960.65632.64867.024
Two-tone46.54577.3970.25122.35277.523
Monotone5.21272.8482.37124.78174.034
Paired17.33482.9000.34316.75783.072

Flop types: rainbow means three different suits, two-tone means one suit twice, monotone means one suit three times, paired means a repeated rank.

Compared with a random hand

Compared with a random opponent, this matchup shifts JJ from 77.47% by +1.91 points and 86s from 46.24% by -25.62 points.

JJ and 86s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
JJ, all flops79.37977.469+1.9101.02466
JJ, rainbow, ten or higher84.59477.469+7.1251.09197
JJ, rainbow, nine or lower67.02477.469-10.4450.86517
JJ, two-tone77.52377.469+0.0541.00070
JJ, monotone74.03477.469-3.4350.95566
JJ, paired83.07277.469+5.6031.07233
86s, all flops20.62146.243-25.6220.44593
86s, rainbow, ten or higher15.40646.243-30.8370.33315
86s, rainbow, nine or lower32.97646.243-13.2670.71310
86s, two-tone22.47746.243-23.7660.48606
86s, monotone25.96646.243-20.2770.56151
86s, paired16.92846.243-29.3150.36607

Does a shared suit matter?

Does suit overlap move the numbers? JJ has 79.96% when the hands share a suit and 78.80% when they do not. JJ does better with a shared suit, by 1.16 points.

JJ against 86s by suit overlap, in percent
DealsSpecific dealsShare of dealsJJ winsTies86s winsJJ equity
Share a suit1250.0079.7450.42619.82979.958
No shared suit1250.0078.6310.33921.03078.800

How often this matchup comes up

Counting specific cards, JJ against 86s 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

Try it with money: two players each put in $100 and the whole board runs out every possible way. JJ averages $158.76 from the $200, up $58.76; 86s averages $41.24, down $58.76.

Think in thousands: about 792 of 1,000 go to JJ, about 204 go to 86s, and about 4 are chopped.

The same matchup from the other side

One page covers both views. From 86s' side the equity is 20.62%, and from JJ's side it is 79.38%.

Open the calculator with JsJh against 8d6d 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 figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 24 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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