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Practical Poker Math

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5. Odds in Omaha Hi-Lo<br />

We will calculate the odds of finding any 2 pair in the hole.<br />

The total number of 4-card combinations possible from a<br />

52-card deck is 270,725.<br />

There are 78 possible 2-card combinations that can contain<br />

a pair.<br />

To find the number of 4-card combinations that will contain<br />

2 pair, multiply the number of possible pair combinations<br />

(78), by the number of possible pairs excluding pairs of the<br />

rank of the first pair (72):<br />

78 * 72 = 5,616<br />

The probability of 2 pair in the pocket expressed as a percentage<br />

is:<br />

WILLs<br />

* 100 = Probability as %<br />

Total Possibilities<br />

5,616 * 100 = 2.1%<br />

270,725<br />

The odds of A2 in the hole are:<br />

Total Possibilities = 270,725<br />

– WILLs = 5,616<br />

WILLNOTs = 265,109<br />

WILLNOTs (265,109) : WILLs (5,616)<br />

265,109 : 5,616<br />

Reduce<br />

265,109 / 5,616 : 5,616 / 5,616<br />

47.2 : 1<br />

168

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