AA vs KTs: preflop equity

The exact count puts AA at 82.13% and KTs at 17.87% when the two hands see all five board cards.

AA

82.13%

Wins 81.93%, ties 0.40%

KTs

17.87%

Wins 17.67%, ties 0.40%

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

AA against KTs: the numbers

Exact preflop results for AA against KTs, in percent
HandWinsTiesLosesEquity
AA81.9290.39617.67582.127
KTs17.6750.39681.92917.873

AA and KTs are a pocket pair and a suited hand, in that order. A pair against two lower cards is a lopsided matchup: the pair is ahead and the other hand has no overcard to catch.

AA is a big favorite here before anyone sees a flop. Ties are 0.40% of the outcomes here; each tied board gives both hands half the pot.

Ranked by equity against a random hand, AA is number 1 of the 169 starting hands and KTs is number 22.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
AA33,669,000163,0007,264,000
KTs7,264,000163,00033,669,000

Exact total: 24 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.

AA against KTs read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
AA4.5951.2215.6580.218
KTs0.2185.6581.2214.595

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

Split by what the flop looks like, AA peaks at 92.12% on low rainbow flops (nine high or lower) and bottoms out at 76.07% on monotone flops. AA stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

AA against KTs by flop texture, in percent
FlopShare of flopsAA winsTiesKTs winsAA equity
Rainbow, ten or higher23.13881.3520.15918.48981.432
Rainbow, nine or lower7.77191.6240.9887.38892.118
Two-tone46.54580.2020.33419.46480.369
Monotone5.21274.8642.41322.72376.070
Paired17.33485.1150.00714.87885.118

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

Compared with a random opponent, this matchup shifts AA from 85.20% by -3.07 points and KTs from 61.79% by -43.92 points.

AA and KTs here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
AA, all flops82.12785.204-3.0770.96389
AA, rainbow, ten or higher81.43285.204-3.7720.95573
AA, rainbow, nine or lower92.11885.204+6.9141.08115
AA, two-tone80.36985.204-4.8350.94325
AA, monotone76.07085.204-9.1340.89280
AA, paired85.11885.204-0.0860.99899
KTs, all flops17.87361.789-43.9160.28926
KTs, rainbow, ten or higher18.56861.789-43.2210.30051
KTs, rainbow, nine or lower7.88261.789-53.9070.12756
KTs, two-tone19.63161.789-42.1580.31771
KTs, monotone23.93061.789-37.8590.38729
KTs, paired14.88261.789-46.9070.24085

Does a shared suit matter?

Looking only at deals where the hands share a suit, AA has 82.74%; looking only at deals where they do not, 81.52%. AA does better with a shared suit, by 1.22 points.

AA against KTs by suit overlap, in percent
DealsSpecific dealsShare of dealsAA winsTiesKTs winsAA equity
Share a suit1250.0082.5170.43817.04582.736
No shared suit1250.0081.3410.35518.30481.518

How often this matchup comes up

Exactly 24 specific deals fit this matchup in one seat order, which is 0.0015% of 1,624,350; both orders together give 48, or 0.0030%.

A worked example

Take a $200 pot built from $100 each. AA's equity of 82.13% is worth $164.26, a $64.26 edge, and KTs' 17.87% is worth $35.74, which is $64.26 under its stake.

Over a long run, 1,000 deals split into about 819 for AA, 177 for KTs and 4 tied.

The same matchup from the other side

KTs versus AA is this same page seen from the other hand: 17.87% for KTs, 82.13% for AA.

Try AsAh against KdTd 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 page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 24 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows.

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

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