A2s vs QTo: preflop equity

Counting every board, the equity split is 58.16% for A2s and 41.84% for QTo, so A2s leads by 16.32 points.

A2s

58.16%

Wins 57.91%, ties 0.50%

QTo

41.84%

Wins 41.59%, ties 0.50%

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

A2s against QTo: the numbers

Exact preflop results for A2s against QTo, in percent
HandWinsTiesLosesEquity
A2s57.9120.49541.59358.160
QTo41.5930.49557.91241.840

Here a suited hand (A2s) meets an offsuit hand (QTo). Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.

The lead is steady rather than large, and the flop still has plenty of say in who wins. Ties are 0.50% of the outcomes here; each tied board gives both hands half the pot.

Ranked by equity against a random hand, A2s is number 46 of the 169 starting hands and QTo is number 47.

Boards behind the percentages: 82,190,592 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
A2s47,598,000407,00034,186,000
QTo34,186,000407,00047,598,000

48 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.

A2s against QTo read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
A2s1.3901.7272.4040.719
QTo0.7192.4041.7271.390

In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity.

Who is ahead on which flops

A2s prefers low rainbow flops (nine high or lower), where it holds 74.09%, and likes rainbow flops topped by a ten or better least, where it holds 50.64%. A2s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

A2s against QTo by flop texture, in percent
FlopShare of flopsA2s winsTiesQTo winsA2s equity
Rainbow, ten or higher23.98850.5620.15949.27950.642
Rainbow, nine or lower7.04273.5871.00325.41074.089
Two-tone46.66757.5730.32042.10757.733
Monotone5.21254.0232.40443.57355.225
Paired17.09163.8840.64935.46764.209

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

A random hand would give A2s 57.38% and QTo 57.29%. Against each other the change is +0.78 points for A2s and -15.45 for QTo.

A2s and QTo here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
A2s, all flops58.16057.379+0.7811.01361
A2s, rainbow, ten or higher50.64257.379-6.7370.88259
A2s, rainbow, nine or lower74.08957.379+16.7101.29122
A2s, two-tone57.73357.379+0.3541.00617
A2s, monotone55.22557.379-2.1540.96246
A2s, paired64.20957.379+6.8301.11903
QTo, all flops41.84057.291-15.4510.73031
QTo, rainbow, ten or higher49.35857.291-7.9330.86153
QTo, rainbow, nine or lower25.91157.291-31.3800.45227
QTo, two-tone42.26757.291-15.0240.73776
QTo, monotone44.77557.291-12.5160.78154
QTo, paired35.79157.291-21.5000.62472

Does a shared suit matter?

Does suit overlap move the numbers? A2s has 57.81% when the hands share a suit and 58.51% when they do not. A2s does better with no shared suit, by 0.70 points.

A2s against QTo by suit overlap, in percent
DealsSpecific dealsShare of dealsA2s winsTiesQTo winsA2s equity
Share a suit2450.0057.5380.53641.92657.806
No shared suit2450.0058.2870.45241.26158.513

How often this matchup comes up

How often does it happen? 48 of the 1,624,350 ordered deals (0.0030%) are A2s against QTo, and 96 (0.0059%) if either hand may sit in either seat.

A worked example

A $100 all-in from each player makes a $200 pot, and the exact equity says A2s gets $116.32 of it on average and QTo gets $83.68.

Over a long run, 1,000 deals split into about 579 for A2s, 416 for QTo and 5 tied.

The same matchup from the other side

If you came looking for QTo against A2s, the numbers are the same with the hands swapped: 41.84% and 58.16%.

Try As2s against QhTd 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

Each figure is a complete count over boards. Take the 48 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops.

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

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