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Practical Poker Math

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

4 * 4 = 16<br />

The number of 2-card combinations possible from the<br />

remaining 50 cards in the deck, including the possibility of<br />

one or more Aces or Deuces — Comb(50, 2) is<br />

(50 * 49) = 1,225<br />

(1 * 2)<br />

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

any A2, multiply the number of possible A2 combinations<br />

(16) by the number of 2-card combinations possible from<br />

the remaining 50 cards in the deck:<br />

16 * 1,225 = 19,600<br />

The probability of A2 in the pocket in Omaha Hi-Lo<br />

expressed as a percentage is<br />

WILLs<br />

* 100 = Probability as %<br />

Total Possibilities<br />

19,600 * 100 = 7.2%<br />

270,725<br />

The odds of A2 in the hole in Omaha Hi-Lo are<br />

Total Possibilities = 270,725<br />

– WILLs = 19,600<br />

WILLNOTs = 251,125<br />

WILLNOTs (251,125) : WILLs (19,600)<br />

251,125 : 19,600<br />

Reduce<br />

251,125 / 19,600 : 19,600 / 19,600<br />

12.8 : 1<br />

154

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