Lecture 27 [Intermediate] Range vs. Range Thinking

Poker is not a battle between your hand and your opponent's hand. It's a battle between your range and your opponent's range.

Basic Strategy

Think about all decisions from the perspective of “your entire range” and “your opponent's entire range.”

Basic Premise: 100BB cash game, 6-max, average opponent

The core of range thinking involves three things:

• Think about all the hands you can raise from this position.
• Estimate all the hands your opponent can call/raise with from this position.
• Determine which range the board is more favorable to.

There are two main reasons why range thinking is important:

• Even if your hand is weak, you can bet if your opponent's range is weaker.
• Even if your hand is strong, you need to be cautious if your opponent's range contains many stronger hands.

Practical Application

1. When your opponent defends tightly

Widen your open raise range (expand from 40% to 50% in late position). Since your opponent folds a lot, positional advantage is more important than hand strength.

2. When your opponent defends loosely

Narrow your open raise range (remove marginal hands). Hand strength becomes more important as multi-way pots are more likely.

3. When the board is favorable to your range

Increase your bet frequency and size (70% frequency, 2/3 pot size). Leveraging your structural advantage to apply pressure is beneficial in the long run.

4. When the board is favorable to your opponent's range

Decrease your bet frequency and increase your check frequency (40% bet, 60% check). Pot control minimizes losses and can induce bluffs from your opponent.

Thinking Framework

It's good to approach with this framework:

1. What is my range? (All hands I can raise/call with from this position)
2. What is my opponent's range? (All hands my opponent can have with this action)
3. Which side is this board favorable to? (Judging range advantage)
4. Where does my hand fall within my range? (Top 30%? Middle? Bottom?)
5. Is this line consistent with my entire range? (Value and bluff ratio)

Example Hand Analysis

Example 1: Betting with Range Advantage

Game: Cash game 1/2, stack 200BB
Position: BTN
Preflop: CO folds, Hero raises K9s to $6 from BTN, BB calls
Pot: $13
Flop: K♠ 7♣ 2♦

Thought Process:

1. Who has a structural advantage on this board?
   → BTN's raise range includes all Kx combos (AK, KQ, KJ, KT, etc.). BB's call range has fewer Kx and is centered around middle pairs and draws.
2. What is my hand's role within my range?
   → K9s is top pair but with a weak kicker. It's in the lower-middle part of my value range.
3. Does my opponent have enough hands to fold / do they call a lot?
   → Opponent will fold many hands like 77, 22, ace-high, and backdoor draws. Utilize range advantage.

Conclusion: Bet $8 (2/3 pot)

Comment: K9s is an absolutely weak top pair, but on this board, my range is much stronger than my opponent's range. If I check, ace-high and small pairs can see a free card, so betting is advantageous.

Example 2: Pot Control with Range Disadvantage

Game: Cash game 1/2, stack 200BB
Position: BB
Preflop: BTN raises $6, Hero calls with Q♦J♦ from BB
Pot: $13
Flop: Q♠ 9♥ 8♣

Thought Process:

1. Who has a structural advantage on this board?
   → BTN's raise range contains many overpairs (AA, KK, JJ, TT), strong top pairs (AQ, KQ), and straights (JT). My call range is wide but weak at the top.
2. What is my hand's role within my range?
   → QJ is top pair with a middle kicker. It's in the upper part of my range, but it loses to many value hands in my opponent's range.
3. Does my opponent have enough hands to fold / do they call a lot?
   → Opponent likely has overpairs, two pairs, or straights. A lead bet out of position risks making my entire range look weak.

Conclusion: Check

Comment: QJ is top pair, but on this board, the opponent's range is much stronger. Checking and calling to keep the pot small and giving the opponent room to bluff is advantageous in the long run. A lead bet is likely to only get calls/raises from stronger hands.

Example 3: Considering Hand Position within Range

Game: Cash game 1/2, stack 200BB
Position: CO
Preflop: MP raises $6, Hero calls with A♠Q♠ from CO, other players fold
Pot: $15
Flop: A♦ 6♣ 3♥
MP: bets $10
Hero: calls
Pot: $35
Turn: 2♠
MP: bets $25

Thought Process:

1. Who has a structural advantage on this board?
   → MP's raise range includes AK, AQ, AJ, overpairs (KK, QQ, JJ), etc. My call range also has many Ax, but no AA, KK since I didn't 3-bet.
2. What is my hand's role within my range?
   → AQs is top pair with a good kicker. It's in the top 30% of my range. It loses to AK, AA but beats AJ, AT, and overpairs.
3. Does my opponent have enough hands to fold / do they call a lot?
   → Opponent has bet two streets, so they are likely on value or strong draws. The 2 on the turn doesn't change the board much. Maintaining a calling frequency is necessary to prevent exploitation.

Conclusion: Call $25

Comment: AQs is in the upper part of my range, so folding would make my entire range too weak. While the opponent might have AK or an overpair, KK, QQ, JJ are also likely to play this way, so maintaining balance with a call is advantageous.

Key Pattern Summary

Pattern 1: When your range is structurally strong (range advantage) → Increase bet frequency and size

Pattern 2: When opponent's range is structurally strong (range disadvantage) → Increase check frequency and pot control

Pattern 3: When your hand is in the upper part of your range → Value bet, defend with calls

Pattern 4: When your hand is in the lower-middle part of your range → Bluff, act as a bluff catcher

Pattern 5: Maintain range consistency → Always mix value and bluffs

Pattern 6: Narrowing opponent's range → Reduce possible hands with each action (call/raise/fold)

Pattern 7: Adjust range by position → Narrow in early, wider in late

Quiz

Question 1
BTN raises, BB calls. Flop A♠ K♦ Q♣. You are on the BTN with J♥T♥ (nut straight). From a range thinking perspective, what is the correct strategy?

A) Always check for a trap
B) Always bet for value
C) Value bet, but also bluff with weak hands at the same frequency
D) Decide based on opponent's reaction

Question 2
MP raises, BTN calls. Flop 7♠ 6♠ 2♥. You have A♠A♣ (overpair). From a range perspective, what are the characteristics of this board?

A) My range is overwhelmingly advantageous → Bet large size
B) Opponent's range has many draws → Pot control
C) The board is dry → Bet small size frequently
D) Opponent can have the nuts → Check

Question 3
BB calls BTN's raise. Flop K♠ Q♦ J♣. You have 9♠8♠. What is your hand's role within your range?

A) Value (top-tier hand)
B) Draw (middle hand with potential)
C) Bluff catcher (catching opponent's bluffs)
D) Air (almost no value)

Question 4
CO raises, BB calls. Flop Q♠ 9♥ 3♦, opponent checks, I bet, opponent calls. Turn 2♣, opponent checks. I have K♦Q♦ (top pair). What is the correct strategy for range consistency?

A) Always bet (maximize value)
B) Always check (pot control)
C) Mix strong hands and bluffs when betting
D) Decide by reading opponent's tells

Question 5
UTG raises, you call from MP, other players fold. Flop A♠ A♦ 7♣. UTG checks. From a range perspective, what is the correct interpretation?

A) UTG is weak → Immediately bluff
B) UTG's range has many aces → Check back
C) Paired boards are difficult for everyone → Small bet
D) My range is wider → Bet frequently

Answers and Explanations

Question 1
Answer: C) Value bet, but also bluff with weak hands at the same frequency

Explanation: A nut straight should be value bet, but if your betting range always contains only nuts, your opponent will exploit you. When betting with JT, you should also mix in bluffs (backdoor draws, middle pairs, etc.) at the same frequency to maintain range balance.

Question 2
Answer: C) The board is dry → Bet small size frequently

Explanation: On a 7-6-2 board, the opponent's range has straight draws (98, 85, 54) and flush draws, but overall, your range is advantageous. Since it's a dry board, betting a small size, around 1/3 pot, frequently to apply pressure is effective. A larger size is more likely to make draws fold.

Question 3
Answer: B) Draw (middle hand with potential)

Explanation: 9-8 is an open-ended straight draw (a 7 or T makes a straight). It's currently weak but has a high potential to become a strong hand on the turn or river. Such draw hands constitute a significant portion of your calling range.

Question 4
Answer: C) Mix strong hands and bluffs when betting

Explanation: KQ is a hand worth value betting, but if you always bet only strong hands on the turn, your opponent will easily fold. For range consistency, you should mix strong hands (KQ, AQ, overpairs) with bluffs (backdoor draws, ace-high) when betting to gain more value in the long run.

Question 5
Answer: B) UTG's range has many aces → Check back

Explanation: UTG's raise range is very strong and contains many ace combos like AK, AQ, AJ. Just because UTG checks on a paired board doesn't mean they are weak; it's likely a trap or pot control. Your MP call range has fewer aces, so bluffing could be risky.