TT vs K9s: preflop equity

Dealt all in against each other, TT takes 68.43% of the pot on average and K9s takes the other 31.57%.

TT

68.43%

Wins 68.23%, ties 0.40%

K9s

31.57%

Wins 31.37%, ties 0.40%

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

TT against K9s: the numbers

Exact preflop results for TT against K9s, in percent
HandWinsTiesLosesEquity
TT68.2330.39931.36868.432
K9s31.3680.39968.23331.568

The first hand is a pocket pair; the second is a suited hand. The pair sits between the other hand's two cards: one is higher and one is lower, so the pair is exposed to the higher card.

That is a clear edge, 68.43% to 31.57%, but K9s still wins often enough that one hand proves nothing. Ties are 0.40% of the outcomes here; each tied board gives both hands half the pot.

For context, TT sits at number 5 of 169 starting hands and K9s at number 29 when each is run against a random hand.

Boards behind the percentages: 41,095,296 counted in all
HandBoards won, aboutBoards tied, aboutBoards lost, about
TT28,041,000164,00012,891,000
K9s12,891,000164,00028,041,000

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.

TT against K9s read as odds
HandEquity as odds (to 1)Wins one deal inLoses one deal inPot odds needed to call (to 1)
TT2.1681.4663.1880.461
K9s0.4613.1881.4662.168

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

Break the boards down by their first three cards and TT is strongest on low rainbow flops (nine high or lower) (79.85%) and weakest on monotone flops (63.68%). TT stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.

TT against K9s by flop texture, in percent
FlopShare of flopsTT winsTiesK9s winsTT equity
Rainbow, ten or higher23.86767.1180.17032.71267.203
Rainbow, nine or lower7.04279.4520.78619.76279.845
Two-tone46.54566.5990.28433.11766.741
Monotone5.21262.4862.37935.13563.676
Paired17.33471.3240.27228.40471.460

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

How much does the opponent matter? Compared with its random-hand 75.01%, TT changes by -6.58 points, and K9s, from 59.99%, by -28.42.

TT and K9s here compared with each against a random hand, in percent
CaseEquity hereAgainst a random handChange in pointsTimes the random-hand equity
TT, all flops68.43275.012-6.5800.91228
TT, rainbow, ten or higher67.20375.012-7.8090.89590
TT, rainbow, nine or lower79.84575.012+4.8331.06443
TT, two-tone66.74175.012-8.2710.88974
TT, monotone63.67675.012-11.3360.84888
TT, paired71.46075.012-3.5520.95265
K9s, all flops31.56859.988-28.4200.52624
K9s, rainbow, ten or higher32.79759.988-27.1910.54673
K9s, rainbow, nine or lower20.15559.988-39.8330.33598
K9s, two-tone33.25959.988-26.7290.55443
K9s, monotone36.32459.988-23.6640.60552
K9s, paired28.54059.988-31.4480.47576

Does a shared suit matter?

Split by suits, the deals give TT 68.70% when the hands overlap in a suit and 68.17% when they do not. TT does better with a shared suit, by 0.53 points.

TT against K9s by suit overlap, in percent
DealsSpecific dealsShare of dealsTT winsTiesK9s winsTT equity
Share a suit1250.0068.4750.44131.08468.696
No shared suit1250.0067.9900.35831.65268.169

How often this matchup comes up

Out of 1,624,350 ways to deal two seats two cards each, 24 are TT in one seat and K9s in the other (0.0015%); with the seats swapped too, 48 (0.0030%).

A worked example

To see what the equity is worth, imagine $100 each in a $200 pot. TT is worth $136.86 on average (+$36.86); K9s is worth $63.14 (-$36.86).

Run 1,000 deals and the tally comes out near 682 for TT, 314 for K9s and 4 ties.

The same matchup from the other side

K9s against TT adds nothing new: it is 31.57% for K9s and 68.43% for TT, the same figures reversed.

TsTh against Kd9d is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength.

How this was computed

The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 24 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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