A7s vs 75s: preflop equity

Over all 1,712,304 boards that can follow this deal, A7s finishes with 69.07% of the pot and 75s with 30.93%.

A7s

69.07%

Wins 67.81%, ties 2.52%

75s

30.93%

Wins 29.67%, ties 2.52%

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

A7s against 75s: the numbers

Exact preflop results for A7s against 75s, in percent
HandWinsTiesLosesEquity
A7s67.8132.52229.66569.074
75s29.6652.52267.81330.926

Both hands are suited hands: A7s and 75s. 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.

A7s is well ahead, and 75s needs a specific kind of board to catch up. About 2.52% of boards chop the pot, which is why equity sits slightly above the win figure for both hands.

A7s ranks number 24 of 169 starting hands, and 75s ranks number 124, by equity against a random hand.

Boards behind the percentages: 20,547,648 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A7s13,934,000518,0006,095,000
75s6,095,000518,00013,934,000

12 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.

A7s against 75s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A7s2.2341.4753.3710.448
75s0.4483.3711.4752.234

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

A7s prefers paired flops, where it holds 73.90%, and likes low rainbow flops (nine high or lower) least, where it holds 51.72%. A7s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

A7s against 75s by flop texture, in percent
FlopShare of flopsA7s winsTies75s winsA7s equity
Rainbow, ten or higher25.25472.9761.85125.17373.902
Rainbow, nine or lower5.65448.7475.94045.31351.717
Two-tone46.54366.3572.24531.39867.479
Monotone5.21560.4534.50335.04462.704
Paired17.33472.6322.53624.83273.900

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

The table below sets each hand against its own random-hand baseline: a change of +8.09 points for A7s, from 60.98%, and -12.75 for 75s, from 43.68%.

A7s and 75s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A7s, all flops69.07460.984+8.0901.13266
A7s, rainbow, ten or higher73.90260.984+12.9181.21183
A7s, rainbow, nine or lower51.71760.984-9.2670.84804
A7s, two-tone67.47960.984+6.4951.10650
A7s, monotone62.70460.984+1.7201.02820
A7s, paired73.90060.984+12.9161.21179
75s, all flops30.92643.676-12.7500.70808
75s, rainbow, ten or higher26.09843.676-17.5780.59754
75s, rainbow, nine or lower48.28343.676+4.6071.10548
75s, two-tone32.52143.676-11.1550.74460
75s, monotone37.29643.676-6.3800.85392
75s, paired26.10043.676-17.5760.59758

Does a shared suit matter?

Every legal deal of A7s against 75s leaves the hands with no suit in common, so the suit split does not apply here.

A7s against 75s by suit overlap, in percent
DealsSpecific dealsShare of dealsA7s winsTies75s winsA7s equity
Share a suit00.00not possiblenot possiblenot possiblenot possible
No shared suit12100.0067.8132.52229.66569.074

How often this matchup comes up

A7s against 75s is made up of 12 specific-card matchups in one seat order, 0.0007% of the 1,624,350 ordered deals, and 24 counting both seat orders, 0.0015%.

A worked example

Worked example: both players commit $100, so $200 sits in the middle. Over every board, A7s' average share is $138.14 (a gain of $38.14) and 75s' is $61.86 (a loss of $38.14).

Over a long run, 1,000 deals split into about 678 for A7s, 297 for 75s and 25 tied.

The same matchup from the other side

Read it from the other side: 75s against A7s is the same matchup with the numbers swapped, so 75s holds 30.93% and A7s holds 69.07%. That address sends you back to this page.

Try As7s against 7h5h 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 12 deals of A7s against 75s 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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