ATs vs KTo: preflop equity

In equity, ATs against KTo stands at 75.26% to 24.74%, a gap of 50.52 points.

ATs

75.26%

Wins 74.30%, ties 1.93%

KTo

24.74%

Wins 23.77%, ties 1.93%

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

ATs against KTo: the numbers

Exact preflop results for ATs against KTo, in percent
HandWinsTiesLosesEquity
ATs74.3011.92523.77475.263
KTo23.7741.92574.30124.737

One side is a suited hand, the other is an offsuit hand. 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.

A lead of 50.52 points is large but not decisive: KTo still takes about 238 of every 1,000 deals. The tie share is 1.93%: on those boards the pot is chopped and neither hand wins outright.

By strength against a random hand, ATs holds place 13 of 169 and KTo holds place 33.

Boards behind the percentages: 61,642,944 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
ATs45,801,0001,187,00014,655,000
KTo14,655,0001,187,00045,801,000

The board total is exact, 36 deals at 1,712,304 boards each. Won, tied and lost counts are rounded to the nearest thousand from the five-decimal percentages.

ATs against KTo read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
ATs3.0431.3464.2060.329
KTo0.3294.2061.3463.043

The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity.

Who is ahead on which flops

The flop changes the picture. ATs does best on low rainbow flops (nine high or lower), at 86.28%, and worst on monotone flops, at 67.31%. ATs stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

ATs against KTo by flop texture, in percent
FlopShare of flopsATs winsTiesKTo winsATs equity
Rainbow, ten or higher23.17770.4631.38628.15171.156
Rainbow, nine or lower7.77184.6213.32112.05886.282
Two-tone46.52774.2361.71324.05175.093
Monotone5.19265.7343.16031.10667.314
Paired17.33377.5462.21720.23778.654

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

How much does the opponent matter? Compared with its random-hand 64.60%, ATs changes by +10.66 points, and KTo, from 59.74%, by -35.00.

ATs and KTo here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
ATs, all flops75.26364.602+10.6611.16503
ATs, rainbow, ten or higher71.15664.602+6.5541.10145
ATs, rainbow, nine or lower86.28264.602+21.6801.33559
ATs, two-tone75.09364.602+10.4911.16239
ATs, monotone67.31464.602+2.7121.04198
ATs, paired78.65464.602+14.0521.21752
KTo, all flops24.73759.739-35.0020.41408
KTo, rainbow, ten or higher28.84459.739-30.8950.48283
KTo, rainbow, nine or lower13.71859.739-46.0210.22963
KTo, two-tone24.90759.739-34.8320.41693
KTo, monotone32.68659.739-27.0530.54715
KTo, paired21.34659.739-38.3930.35732

Does a shared suit matter?

The suit split reads 75.02% for ATs with a shared suit and 75.38% without one. ATs does better with no shared suit, by 0.36 points.

ATs against KTo by suit overlap, in percent
DealsSpecific dealsShare of dealsATs winsTiesKTo winsATs equity
Share a suit1233.3374.0242.00123.97575.024
No shared suit2466.6774.4391.88723.67475.382

How often this matchup comes up

This page stands for 36 specific-card matchups (0.0022% of 1,624,350 ordered deals), or 72 once you count the seats both ways (0.0044%).

A worked example

A $100 all-in from each player makes a $200 pot, and the exact equity says ATs gets $150.52 of it on average and KTo gets $49.48.

Run 1,000 deals and the tally comes out near 743 for ATs, 238 for KTo and 19 ties.

The same matchup from the other side

KTo versus ATs is this same page seen from the other hand: 24.74% for KTo, 75.26% for ATs.

Open the calculator with AsTs against KhTd already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking.

How this was computed

The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 36 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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