A6s vs 54s: preflop equity

If A6s and 54s get all the chips in before the flop, A6s owns 61.40% of the pot in the long run and 54s owns 38.60%.

A6s

61.40%

Wins 61.12%, ties 0.57%

54s

38.60%

Wins 38.31%, ties 0.57%

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

A6s against 54s: the numbers

Exact preflop results for A6s against 54s, in percent
HandWinsTiesLosesEquity
A6s61.1180.56638.31661.401
54s38.3160.56661.11838.599

Two suited hands meet here: A6s against 54s. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

A 22.80 point lead is real, and 54s still takes about 383 of every 1,000 deals outright. Split pots make up 0.57% of the boards, and both equity figures count them as half a win each.

Ranked by equity against a random hand, A6s is number 31 of the 169 starting hands and 54s is number 136.

Boards behind the percentages: 27,396,864 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A6s16,744,000155,00010,497,000
54s10,497,000155,00016,744,000

Exact total: 16 deals times 1,712,304 boards. The other three counts come from the five-decimal percentages and are rounded to the nearest thousand, so read them as approximate.

A6s against 54s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A6s1.5911.6362.6100.629
54s0.6292.6101.6361.591

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

The flop changes the picture. A6s does best on paired flops, at 65.51%, and worst on low rainbow flops (nine high or lower), at 44.92%. 54s takes over on low rainbow flops (nine high or lower), so the favorite before the flop is the underdog on those boards.

A6s against 54s by flop texture, in percent
FlopShare of flopsA6s winsTies54s winsA6s equity
Rainbow, ten or higher25.22064.7490.25534.99664.877
Rainbow, nine or lower5.68944.5120.82254.66644.923
Two-tone46.72760.2050.32139.47460.365
Monotone5.27356.6303.55239.81858.406
Paired17.09165.1690.68634.14565.512

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

Relative to a random opponent, A6s changes by +1.49 points (baseline 59.91%) and 54s by -2.85 points (baseline 41.45%).

A6s and 54s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A6s, all flops61.40159.906+1.4951.02496
A6s, rainbow, ten or higher64.87759.906+4.9711.08298
A6s, rainbow, nine or lower44.92359.906-14.9830.74989
A6s, two-tone60.36559.906+0.4591.00766
A6s, monotone58.40659.906-1.5000.97496
A6s, paired65.51259.906+5.6061.09358
54s, all flops38.59941.453-2.8540.93115
54s, rainbow, ten or higher35.12341.453-6.3300.84730
54s, rainbow, nine or lower55.07741.453+13.6241.32866
54s, two-tone39.63541.453-1.8180.95614
54s, monotone41.59441.453+0.1411.00340
54s, paired34.48841.453-6.9650.83198

Does a shared suit matter?

Two kinds of deal exist here. In 4 of them the hands share a suit and A6s holds 63.65%. In 12 they do not, and it holds 60.65%. A6s does better with a shared suit, by 3.00 points.

A6s against 54s by suit overlap, in percent
DealsSpecific dealsShare of dealsA6s winsTies54s winsA6s equity
Share a suit425.0063.3320.64336.02563.653
No shared suit1275.0060.3800.54039.08060.650

How often this matchup comes up

You will meet this exact matchup 0.0020% of the time in a random heads-up deal: 32 of 1,624,350, counting either seat order.

A worked example

Try it with money: two players each put in $100 and the whole board runs out every possible way. A6s averages $122.80 from the $200, up $22.80; 54s averages $77.20, down $22.80.

Run 1,000 deals and the tally comes out near 611 for A6s, 383 for 54s and 6 ties.

The same matchup from the other side

The mirror image, 54s against A6s, is 38.60% to 61.40%, and its address redirects to this page.

Try As6s against 5h4h 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

The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 16 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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