The vast majority of starting hands in poker should be folded. This is not timid play, but pure mathematics: from early position, only 10–17% of hands are profitable to open. Winning 6-max players participate in roughly one out of four hands; recreational players play one out of two. That gap is the source of all poker profits.
When everyone folds to you, you have two ways to enter the pot: call the 1 bb big blind (limp) or raise (open-raise). Modern poker theory is unequivocal: raise or fold.
You can never win the pot immediately — no opponent will fold to a call. The blinds enter cheaply with any two cards. You surrender initiative to players behind who raise, forcing you to play multiway out of position.
Opponents often fold, handing you the blinds uncontested. When called, you hold the betting initiative, giving your postflop continuation bets credibility.
Opening the pot with a raise is called RFI (Raise First In). It provides two avenues to profit: winning immediately when everyone folds, or winning postflop with initiative and hand equity. Limping offers only one way to win: dragging the pot at showdown.
Open-Raise Sizing Guidelines
- UTG, MP, CO, and Button — 2 to 2.5 bb. This sizing risks few chips while offering opponents poor pot odds to defend marginal cards.
- Small Blind — approximately 3 bb. The Small Blind must play out of position postflop, so a larger sizing encourages folds immediately.
- Facing prior limpers — add 1 bb per limper. A limper has already committed chips; your raise must deny them favorable odds.
Crucially: never vary your open-raise sizing based on hand strength. If you raise 4 bb with Aces and 2 bb with 7♠ 6♠, attentive opponents will exploit your pattern immediately.
Positional Opening Ranges
Below is the standard 13×13 starting hand matrix containing all 169 distinct hand categories: pairs along the diagonal, suited hands in the upper-right, and offsuit hands in the lower-left. Notice how ranges expand dramatically from UTG to the Button.
What Makes a Hand Strong Preflop?
- High Card Value. Aces and Kings form top pairs with the best kickers.
- Pocket Pairs. Pairs are made hands that flop a set approximately 12% (1 in 8.5) of the time.
- Suitedness. Suited cards add roughly 3% raw equity and yield disguised flushes.
- Connectedness. Connectors like 9-8 make straights that crack higher pairs.
The premier trap for beginners is domination. K♠ J♦ looks appealing, but against early position opening ranges (AK, AJ, KQ), it is frequently dominated by a higher kicker, losing a large pot. This is why offsuit Broadway hands are folded from UTG and opened only from late position.