Preflop Calculator User's Guide
Below is a further explanation of exactly what the preflop calculator calculates:
For pocket pair statistics:
- Full House - The chance of matching your pocket card AND the board pairing but also includes the chance of a board like 555 or QQQ.
- Three-of-a-Kind - The chance of exactly one board card matching your pair to make a set. Does not include chance of a board card matching your set and the other two cards pairing to make a boat.
- Two Pair - The chance of the board pairing (not your pair to make quads).
- One Pair - You already have a pair, so this is basically the chance that you won't improve to a set, boat, two pair, etc.
For unpaired card statistics:
- Flush - This statistic does not include your chance of getting a straight flush, so it may vary between suited hands based on straight flush drawing potential.
- Four Flush - This ignores if you also made a pair to go with your four flush. If your hole cards are not of the same suit, this is the chance of a flop with three of the same suit matching one of your two suits.
- Three-of-a-Kind - The chance of the board pairing and that pair being one of your two different hole cards and also the chance of a board like 888 or AAA, when you don't hold one of those cards to make quads.
- Two Pair - This is the chance that the board will match each of your hole cards once but also includes the chance of one match and a board pair. It will match both hole cards exactly half that chance and the other half would be the single match with a board pair.
- One Pair - This is only the chance that you will get exactly one pair using one of your pocket cards. This does not include the chance of completely missing but having a board pair.
Here's a shout out to Paul Zuzelo, who pointed out some discrepancies in the preflop calculator. Thanks Paul!
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