88 vs 53s: preflop equity

Dealt all in against each other, 88 takes 79.50% of the pot on average and 53s takes the other 20.50%.

88

79.50%

Wins 79.02%, ties 0.97%

53s

20.50%

Wins 20.01%, ties 0.97%

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

88 against 53s: the numbers

Exact preflop results for 88 against 53s, in percent
HandWinsTiesLosesEquity
8879.0190.96920.01279.504
53s20.0120.96979.01920.496

We compare a pocket pair with a suited hand. The pair outranks both of the other hand's cards, which is why the pair is a strong favorite.

88 is the clear favorite, though 53s gets there on roughly one board in 5. Split pots make up 0.97% of the boards, and both equity figures count them as half a win each.

By strength against a random hand, 88 holds place 7 of 169 and 53s holds place 146.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
8832,473,000398,0008,224,000
53s8,224,000398,00032,473,000

The total is exact: 24 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand.

88 against 53s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
883.8791.2664.9970.258
53s0.2584.9971.2663.879

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

If you know the kind of flop that came, the numbers shift: 88 holds 83.55% on rainbow flops topped by a ten or better and 70.04% on low rainbow flops (nine high or lower). 88 stays ahead on all five textures.

88 against 53s by flop texture, in percent
FlopShare of flops88 winsTies53s wins88 equity
Rainbow, ten or higher25.84483.2620.58216.15683.553
Rainbow, nine or lower5.06569.6590.76129.58070.040
Two-tone46.54577.5320.57321.89577.819
Monotone5.21272.9212.68524.39474.263
Paired17.33481.2542.15416.59282.331

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

Start from the random-hand figures, 69.16% for 88 and 39.69% for 53s. This opponent changes them by +10.34 and -19.19 points.

88 and 53s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
88, all flops79.50469.163+10.3411.14952
88, rainbow, ten or higher83.55369.163+14.3901.20806
88, rainbow, nine or lower70.04069.163+0.8771.01268
88, two-tone77.81969.163+8.6561.12515
88, monotone74.26369.163+5.1001.07374
88, paired82.33169.163+13.1681.19039
53s, all flops20.49639.693-19.1970.51636
53s, rainbow, ten or higher16.44739.693-23.2460.41436
53s, rainbow, nine or lower29.96039.693-9.7330.75479
53s, two-tone22.18139.693-17.5120.55881
53s, monotone25.73739.693-13.9560.64840
53s, paired17.66939.693-22.0240.44514

Does a shared suit matter?

Two kinds of deal exist here. In 12 of them the hands share a suit and 88 holds 80.09%. In 12 they do not, and it holds 78.92%. 88 does better with a shared suit, by 1.17 points.

88 against 53s by suit overlap, in percent
DealsSpecific dealsShare of deals88 winsTies53s wins88 equity
Share a suit1250.0079.5801.01119.40980.086
No shared suit1250.0078.4580.92720.61578.922

How often this matchup comes up

Exactly 24 specific deals fit this matchup in one seat order, which is 0.0015% of 1,624,350; both orders together give 48, or 0.0030%.

A worked example

With $100 from each side, the $200 pot is split on average as $159.00 for 88 and $41.00 for 53s; the first side gains $59.00 per all-in and the second gives up $59.00.

Think in thousands: about 790 of 1,000 go to 88, about 200 go to 53s, and about 10 are chopped.

The same matchup from the other side

53s against 88 adds nothing new: it is 20.50% for 53s and 79.50% for 88, the same figures reversed.

Open the calculator with 8s8h against 5d3d 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

This is an exact count with no sampling. For the 24 ways to deal one 88 and one 53s without reusing a card, grouped by suit pattern, every one of the 1,712,304 possible boards is dealt and both seven-card hands are compared. A tie counts as half a win in the equity column, and each board is counted once under each of its ten three-card flops.

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

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