75s vs 65s: preflop equity

Counting every board, the equity split is 63.64% for 75s and 36.36% for 65s, so 75s leads by 27.28 points.

75s

63.64%

Wins 55.15%, ties 16.98%

65s

36.36%

Wins 27.87%, ties 16.98%

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

75s against 65s: the numbers

Exact preflop results for 75s against 65s, in percent
HandWinsTiesLosesEquity
75s55.15016.98327.86763.641
65s27.86716.98355.15036.359

75s meets 65s, and both are suited hands. The two hands share a rank, and the one with the better other card dominates: it wins most kicker battles when that shared rank hits.

That is a modest edge, the kind that shows up over many hands and is easy to miss in one. A split pot comes up on 16.98% of boards, so the wins and the equity differ by half of that.

Among the 169 starting hands, 75s is number 124 and 65s is number 128 by strength against a random hand.

Boards behind the percentages: 20,547,648 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
75s11,332,0003,490,0005,726,000
65s5,726,0003,490,00011,332,000

The total is exact: 12 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.

75s against 65s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
75s1.7501.8133.5880.571
65s0.5713.5881.8131.750

The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call.

Who is ahead on which flops

If you know the kind of flop that came, the numbers shift: 75s holds 66.34% on rainbow flops topped by a ten or better and 59.01% on monotone flops. 75s stays ahead on all five textures.

75s against 65s by flop texture, in percent
FlopShare of flops75s winsTies65s wins75s equity
Rainbow, ten or higher25.84457.74717.18325.07066.339
Rainbow, nine or lower5.06555.00610.96834.02660.490
Two-tone46.54355.94314.54929.50863.218
Monotone5.21551.96514.08133.95459.005
Paired17.33350.14625.85324.00163.073

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

Relative to a random opponent, 75s changes by +19.96 points (baseline 43.68%) and 65s by -6.77 points (baseline 43.13%).

75s and 65s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
75s, all flops63.64143.676+19.9651.45712
75s, rainbow, ten or higher66.33943.676+22.6631.51889
75s, rainbow, nine or lower60.49043.676+16.8141.38497
75s, two-tone63.21843.676+19.5421.44743
75s, monotone59.00543.676+15.3291.35097
75s, paired63.07343.676+19.3971.44411
65s, all flops36.35943.133-6.7740.84295
65s, rainbow, ten or higher33.66143.133-9.4720.78040
65s, rainbow, nine or lower39.51043.133-3.6230.91600
65s, two-tone36.78243.133-6.3510.85276
65s, monotone40.99543.133-2.1380.95043
65s, paired36.92743.133-6.2060.85612

Does a shared suit matter?

Suits do not split this matchup, because no legal deal has the hands holding the same suit.

75s against 65s by suit overlap, in percent
DealsSpecific dealsShare of deals75s winsTies65s wins75s equity
Share a suit00.00not possiblenot possiblenot possiblenot possible
No shared suit12100.0055.15016.98327.86763.641

How often this matchup comes up

You will meet this exact matchup 0.0015% of the time in a random heads-up deal: 24 of 1,624,350, counting either seat order.

A worked example

To see what the equity is worth, imagine $100 each in a $200 pot. 75s is worth $127.28 on average (+$27.28); 65s is worth $72.72 (-$27.28).

Out of 1,000 deals you should see around 551 outright wins for 75s, 279 for 65s, and 170 split pots.

The same matchup from the other side

Read it from the other side: 65s against 75s is the same matchup with the numbers swapped, so 65s holds 36.36% and 75s holds 63.64%. That address sends you back to this page.

7s5s against 6h5h is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength.

How this was computed

Nothing here is simulated. The 12 deals of 75s against 65s 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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