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Practical Poker Math

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Before the Flop<br />

Before the Flop, what you want to know most is the odds or<br />

probability that the Flop will improve your hand.<br />

The Flop is a set of 3 cards. To calculate the odds or probability<br />

that the Flop will make the desired improvement, you<br />

will need to know at least 2 of the following 3 values:<br />

1. The total number of 3-card Flops possible from<br />

the deck, minus your 2 hole cards<br />

2. The total number of 3-card combinations that<br />

WILL make the desired improvement<br />

3. The total number of 3-card combinations that<br />

WILLNOT make the desired improvement.<br />

With 2 cards in the hole there are 50 unseen cards. To find<br />

the total number of 3-card Flops possible from the rest of<br />

the deck, use Comb(50, 3):<br />

(50 * 49 * 48) = 19,600<br />

(1 * 2 * 3)<br />

To find the number of 3-card combinations that WILL<br />

improve your hand depends on the hand.<br />

To find the number of 3-card combinations that WILLNOT<br />

make the improvement, use Total Possible – WILLs =<br />

WILLNOTs.<br />

Pocket Pair >>> Set or Full House<br />

To find the odds of flopping a Set or a Full House with a Pair<br />

in the pocket, find the number of 2-card combinations pos-<br />

27<br />

Odds in Texas Hold’em

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