Skip to main content
pokercalc.app

Hand Reading and Range Narrowing

What Is a Range?

Nobody holds "a hand" — they hold a range. A range is the collection of all hands a player could have in a given situation. When your opponent raises from under the gun, they might have AA, KK, QQ, AKs, or any of about 150 combinations. Your job is to narrow that range based on every action they take.

Thinking in terms of ranges rather than specific hands is the single biggest mental shift that separates beginners from intermediate players. Instead of asking "Does he have ace-king?" ask "What percentage of his range beats me here?"

Narrowing Preflop

Position is the first clue. An under-the-gun open typically represents the top 12-15% of hands (strong pairs, big broadways). A button open might be 40%+ (suited connectors, small pairs, random suited hands). Start by assigning a position-based range.

  • Open raise: Range depends on position. UTG is narrow, BTN is wide.
  • 3-bet: Narrows the range significantly to premiums and some bluffs (suited aces, small suited connectors). See 3-betting strategy.
  • 4-bet/5-bet: Very narrow — almost always AA, KK, QQ, AKs, sometimes AKo or JJ.
  • Cold call: Usually medium-strength hands — suited connectors, medium pairs, hands too good to fold but not strong enough to 3-bet.

Narrowing on the Flop

The flop is where hand reading gets interesting. The board texture determines which parts of a range connect and which miss entirely.

  • Bets on dry boards (K-7-2 rainbow) usually mean top pair or better, or a continuation bet. Missed hands fold.
  • Bets on wet boards (J-T-9 two-tone) could be made hands, strong draws, or semi-bluffs. The range is wider because more combos connect.
  • Checks from the preflop raiser usually mean missed hands, weak pairs, or traps with monsters. Remove most top-pair-or-better from their range.
  • Check-raises are polarized: very strong hands (sets, two pair) or semi-bluffs (flush draws, straight draws). Remove medium-strength hands.

Narrowing on Turn and River

Turn

A second barrel (betting again on the turn) narrows the range further. Players who c-bet the flop as a bluff often give up on the turn. A turn bet typically means real strength or a strong draw committing to the bluff.

  • Remove weak made hands — they would check for pot control.
  • Keep strong value hands and persistent draws.
  • Board-changing turn cards (flush completing, straight completing) shift ranges dramatically.

River

River bets are the most polarized. There are no more draws — every hand is either a made hand or nothing. A big river bet usually means:

  • Value: Two pair or better, betting for maximum extraction.
  • Bluff: Missed draws that have no showdown value and can only win by making you fold.
  • Rarely medium-strength: One-pair hands typically check for showdown value.

Using the Range Analysis Tool

The range analysis modal on the calculator lets you assign a range to a villain and see exactly how that range interacts with the board. The blocker effects display shows which hands in your range block your opponent's strong holdings.

  • Assign a starting range to a villain (e.g., "TT+, AQs+, AKo").
  • See how many combos hit the flop (top pair, overpair, draws, air).
  • Check blocker effects — your cards reduce specific villain combos.
  • Adjust the range as the hand progresses to simulate narrowing in real time.

Common Hand Reading Mistakes

  • Single-hand thinking: "He has AK" is not hand reading. Think in ranges, not specific hands.
  • Confirmation bias: Don't fixate on the hand you're most afraid of. Consider the full range.
  • Ignoring bet sizing: Small bets and big bets come from different parts of a range. A half-pot bet on the river might be thin value; a 2x pot overbet is polarized.
  • Forgetting position: A UTG raiser's range is vastly different from a BTN raiser's range. Always start with position.
  • Not updating: Each action narrows the range. A preflop range that isn't updated by the river is useless.

Next Steps