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Practical Poker Math

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

Odds of Flopping a Nut Low Draw<br />

WILLNOTs : WILLs<br />

10,896 : 6,400<br />

Reduce<br />

10,896 / 6,400 : 6,400 / 6,400<br />

1.7 : 1<br />

A23X >>> Nut Low<br />

To flop a nut Low with this hand the Flop needs to contain 3<br />

unpaired cards below the rank of 9 with one and only one<br />

that may pair the A, 2 or 3 in the hole.<br />

There are Comb(20, 2) 2-card combinations from the ranks<br />

4 through 8 and 30 pairs:<br />

(20 * 19) = 190<br />

(1 * 2)<br />

190 – 30 = 160 is the number of 2-card combinations that<br />

will flop a nut Low draw to this hand. This is multiplied by<br />

all of the remaining low cards minus the 6 that might counterfeit<br />

one of the flop cards (21):<br />

160 * 21 = 3,360<br />

With 3,360 3-card combinations that will flop the nut Low<br />

to this hand, the odds are<br />

Total Possibilities = 17,296<br />

– WILLs = 3,360<br />

WILLNOTs = 13,936<br />

Odds of Flopping a Nut Low<br />

WILLNOTs : WILLs<br />

13,936 : 3,360<br />

184

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