Certain preflop situations crop up time and again when playing hold'em. Coupled with the fact that most small stakes poker tournaments are heavily rely on preflop game, it's important to know the odds of how your cards could weigh up against the holdings of your opponents. This way you can make the decision to whether to call, raise, or fold.
Listed here are some common preflop odds situations that you'll find yourself in:
Pocket Pair vs. Smaller Pocket Pair (QQ vs. 55)
80% vs. 20% in favour of the bigger pair. (4/1)
Pocket pair vs. Two Overcards (66 vs AK)
55% vs. 45% in favour of the pair.
This situation is so common that you'll no doubt be bored by comments from televised poker that refer to this a "classic race" or a "coin flip" situation.
Pocket Pair vs. Two Undercards (TT vs. 86)
Around 4/1 (80% to 20%) in favour of the pocket pair
Pocket Pair vs. One Overcard and One Undercard (TT vs. K9)
70% to 30% in favour of the pocket pair.
Pocket Pair vs Same Card and One Overcard (TT vs. AT)
Very similar to the above situation. Around 2/1 (70%-30% to 65%-35%) in favour of the pocket pair.
Pocket Pair vs Same Card and One Undercard (AA vs. AK)
Around 85% to 15% chance in favour of the pocket pair. This is big domination.
Two Overcards vs. Two Undercards (KQ vs. 10,9)
Around 65% to 35% in favour of the overcards
Overcard & Undercard vs. two middle cards (AT vs. KJ)
Around 6/4 (60%-40%) in favour of the overcard/undercard
1st and 3rd Highest card vs. 2nd and 4th Highest card (AT vs. Q8)
Around 2/1 (70% to 30% - 65% to 35%) in favour of the 1st and 3rd highest