22 vs 86s: preflop equity

Before any board card is dealt, 86s holds 52.13% equity against 22, which leaves 22 with 47.87%.

22

47.87%

Wins 46.67%, ties 2.41%

86s

52.13%

Wins 50.92%, ties 2.41%

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

22 against 86s: the numbers

Exact preflop results for 22 against 86s, in percent
HandWinsTiesLosesEquity
2246.6672.40850.92547.871
86s50.9252.40846.66752.129

We compare a pocket pair with a suited hand. One hand holds a pair and the other holds two cards that both outrank it, which keeps the equity closer than most people expect.

86s leads by less than 5 points of equity, so the result of any one deal is close to a toss-up. Split pots make up 2.41% of the boards, and both equity figures count them as half a win each.

By strength against a random hand, 22 holds place 87 of 169 and 86s holds place 110.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
2219,178,000990,00020,928,000
86s20,928,000990,00019,178,000

24 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.

22 against 86s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
220.9182.1431.9641.089
86s1.0891.9642.1430.918

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

Split by what the flop looks like, 86s peaks at 61.26% on low rainbow flops (nine high or lower) and bottoms out at 49.63% on rainbow flops topped by a ten or better. 22 takes over on rainbow flops topped by a ten or better and paired flops, so the favorite before the flop is the underdog on those boards.

22 against 86s by flop texture, in percent
FlopShare of flops22 winsTies86s wins22 equity
Rainbow, ten or higher25.84449.6941.35748.94950.373
Rainbow, nine or lower5.06538.3010.88560.81438.744
Two-tone46.54545.9691.21952.81246.578
Monotone5.21245.8704.43349.69748.086
Paired17.33446.7127.00446.28450.214

Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank.

Compared with a random hand

How much does the opponent matter? Compared with its random-hand 50.33%, 22 changes by -2.46 points, and 86s, from 46.24%, by +5.89.

22 and 86s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
22, all flops47.87150.334-2.4630.95107
22, rainbow, ten or higher50.37350.334+0.0391.00077
22, rainbow, nine or lower38.74450.334-11.5900.76974
22, two-tone46.57850.334-3.7560.92538
22, monotone48.08650.334-2.2480.95534
22, paired50.21450.334-0.1200.99762
86s, all flops52.12946.243+5.8861.12728
86s, rainbow, ten or higher49.62746.243+3.3841.07318
86s, rainbow, nine or lower61.25646.243+15.0131.32465
86s, two-tone53.42246.243+7.1791.15525
86s, monotone51.91446.243+5.6711.12263
86s, paired49.78646.243+3.5431.07662

Does a shared suit matter?

Suit overlap shows up in the numbers. With a suit in common 86s has 51.98% equity, and with none in common it has 52.28%. 86s does better with no shared suit, by 0.30 points.

22 against 86s by suit overlap, in percent
DealsSpecific dealsShare of deals22 winsTies86s wins22 equity
Share a suit1250.0046.8072.42650.76748.020
No shared suit1250.0046.5272.38951.08447.722

How often this matchup comes up

How often does it happen? 24 of the 1,624,350 ordered deals (0.0015%) are 22 against 86s, and 48 (0.0030%) if either hand may sit in either seat.

A worked example

Say each player puts $100 in before the flop, making a $200 pot. On average 86s takes back $104.26 of it, which is $4.26 more than it put in, and 22 takes back $95.74, $4.26 less than it put in.

Over a long run, 1,000 deals split into about 509 for 86s, 467 for 22 and 24 tied.

The same matchup from the other side

If you came looking for 86s against 22, the numbers are the same with the hands swapped: 52.13% and 47.87%.

Try 2s2h against 8d6d 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

Nothing here is simulated. The 24 deals of 22 against 86s fall into a few suit patterns, each dealt against all 1,712,304 boards, with both best five-card hands compared on every board. Ties give each hand half a win, and the flop rows count a board under each of its ten flops.

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

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