#1
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Math question
How are the odds calculated for KK vs QQ heads up before the flop? Say your in a NL tourney & hold KK and someone goes all-in with QQ how much of favorite are the kings ?
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#2
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Re: Math question
These odds are usually calculated by enumerating over all possible board cards and counting the number of times each hand wins. This is usually done with a computer program. You can download a free one here:
www.pokerstove.com gm |
#3
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Re: Math question
Generally for pairs, the high pair is about a 4:1 favorite.
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#4
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Re: Math question
Thanks for the replys.
Yads can you give a short explanantion of thr math for this. I would think the odds were much higher. |
#5
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Re: Math question
[ QUOTE ]
Thanks for the replys. Yads can you give a short explanantion of thr math for this. I would think the odds were much higher. [/ QUOTE ] Take QQ vs KK, for example. Roughly, you can say that QQ will win when the board contains at a Q but not a K, or both queens. How many boards contain a Q? There are 48 cards left, with 2 Q and 2 K left. Each Q can be matched with (44 choose 4) cards. So there 389160 boards which contain exactly 1 Q and no K. An additional (46 choose 2) - 44 = 991 boards contain both QQ and at most 1 K. There are a total of 48 choose 5 = 1712304 possible boards, so the odds of the queens winning are: (389160+991)/1712304=.2278 In odds form this is 1:3.4 Remember that this was an approximation. It doesn't account for straights, flushes, or full houses. The actual answer is 18%, not 23%. Again, the "math" for the exact calculation is just a matter of enumerating all possibilities, and this is usually done with a computer program. But the above calculations should give you a general feel for what's going on. gm |
#6
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Re: Math question
I calculated all the probabilities for hand versus hand iteratively once (that is, I took all the starting hands to isomorphism and ran them against every possible two card hand with every possible board), but I get anal at times. Using a monte carlo is quick, easy, and will give you a very good approximation. (There are some free and open source packages out there for doing hand analysis; I wrote my own, it is a relatively simple problem if you are into software development.)
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#7
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Re: Math question
Ok now I have a better understanding I thought it was a little more complicated than just the qq has 2 outs. 4:1 is a good approximation for the math challenged like myself
Thanks again |
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