Thinking in ranges, not single hands

Beginners ask “what does my opponent have?” Strong players ask “what could they have, and how likely is each?” After this lesson, you'll think in ranges instead of guessing one hand — the single mental shift that puts you on the same wavelength as serious players.

What a range is

A range is the full set of hands a player could hold given how they've acted. You can't see their cards, but their actions narrow the possibilities. Instead of locking onto "they have aces," you hold the whole set — "they could have any strong pair, ace-king, and a few bluffs" — and play against all of it at once.

Ranges narrow street by street

Every action trims the range:

PreflopA raise from early position means a tight, strong range (Lesson 5). A button raise is much wider.
FlopA bet on K♠ 7♦ 2♣ keeps strong kings and bluffs; a check often sheds the strongest hands.
Turn & riverContinued aggression narrows toward value; passive lines widen toward weaker holdings.

By the river, a well-read opponent's range may be just a handful of hands — and now you can decide accurately whether your hand beats most of it.

Range advantage

Sometimes an entire range is stronger on a given board. If you raised preflop and the flop comes A♣ K♦ 4♠, your range is full of aces and kings while the caller's isn't — you have the range advantage, and can bet often and confidently. On a flop of 6♥ 5♥ 4♣, that advantage can flip to the caller. Reading board texture and ranges together is what tells you whose board it is.

The upgrade, in one line: stop trying to name your opponent's exact two cards. Hold their whole range, narrow it with every action, and make the play that profits against the average of what they can have. This is how every concept so far — position, sizing, texture — comes together.

Check yourself — no peeking

Answer each from memory. Retrieving the answer is what builds lasting recall.