Lesson 15 [Beginner] 4-bet Pot Play

The core of 4-bet pots is “managing large pots.”

Basic Strategy

In 4-bet pots, the SPR is low and decisions become simpler.

Game situation: Cash game 1/2, Stack 100BB, Pot size after 4-bet approximately 40-50BB

What is a 4-bet pot?

• A pot created by the sequence: open raise → 3-bet → 4-bet
• Example: $6 open → $18 3-bet → $50 4-bet → call
• Preflop pot: approximately $103 ($50 4-bet × 2 + blinds $3)
• Remaining stack: approximately 150BB (200BB – 50BB)

What is SPR (Stack-to-Pot Ratio)?

• SPR = Remaining stack / Current pot size
• 4-bet pot SPR: approximately 1.5-2 (150BB / 103BB)
• When SPR is low, decisions become simpler (almost committed)

There are three reasons for this:

• Pot is already large: Since the pot size is over 100BB on the flop, even a small bet is a significant amount.
• Ranges are narrow: By the time it gets to a 4-bet, both sides primarily have premium hands.
• Committed situation: Due to the low SPR, all-ins frequently occur on the flop.

Responses by Situation

1. When you 4-bet (Aggressor)

C-bet almost always on the flop (80-100%). Since the pot is large and the SPR is low, maintaining the initiative is crucial. A bet size of 1/3-1/2 pot is sufficient; if your opponent raises, with premium hands call/all-in, and with weak hands fold.

2. When you call a 4-bet (Defender)

On the flop, check/call or check/fold depending on the board. Since your opponent is likely to C-bet, call with strong hands and fold with weak hands. Since the SPR is low, you'll be almost committed by the turn, so the flop decision is critical.

3. When an overcard appears

If you have QQ and an A or K appears, be careful. Since your opponent is likely to have AK, C-bet small and consider folding if your opponent raises. If you have KK or AA, continue to attack.

Thought Process

When seeing a flop in a 4-bet pot, think in this order:

1. What is the SPR? (Usually 1.5-2)
2. Did I 4-bet or call? (Aggressor/Defender)
3. Is the flop good or bad for my hand?
4. Are there overcards? Is it a dangerous board?
5. Should I C-bet or check/call? (Low SPR means committed)

Example Hand Analysis

Example 1: 4-bet with AA on a dry board

Game: Cash game 1/2, Stack 200BB
Position: Cutoff
Preflop: Hero raises $6 from the Cutoff (A♠ A♥), Button 3-bets $18, Hero 4-bets $50, Button calls
Flop: 9♣ 6♦ 2♠
Pot: $103, Remaining stack: $150

Thought Process:

1. “Who is structurally favored on this board?”
   → SPR 1.5 (150/103), AA is the best hand.
2. “What role does my hand play within my range?”
   → This hand is to maximize value.
3. “Does my opponent have enough hands to fold / do they call a lot?”
   → It's a dry board and I have AA, so I'm almost always ahead. C-bet.

Conclusion: C-bet $35 (approx. 1/3 pot)

Comment: In a 4-bet pot, AA almost always C-bets. A small size is sufficient, and if your opponent calls, plan to go all-in on the turn. Due to the low SPR, you'll be almost committed by the turn.

Example 2: 4-bet with QQ, then an overcard appears

Game: Cash game 1/2, Stack 200BB
Position: Button
Preflop: UTG raises $6, Hero 3-bets $18 from the Button (Q♠ Q♥), UTG 4-bets $50, Hero calls
Flop: A♣ 8♦ 5♠, UTG bets $35
Pot: $138 (including bet), Remaining stack: $150

Thought Process:

1. “Who is structurally favored on this board?”
   → An Ace appeared, and an UTG 4-bet represents AK or AA.
2. “What role does my hand play within my range?”
   → QQ becomes weak against overcards.
3. “Does my opponent have enough hands to fold / do they call a lot?”
   → Since UTG 4-bet and bet on an Ace board, they are likely to have AK or better.

Conclusion: Fold

Comment: In a 4-bet pot, QQ becomes weak when an overcard appears. An UTG 4-bet + C-bet on an Ace board strongly represents AK or AA, so folding is safer. Even with a low SPR, you can fold in unfavorable situations.

Example 3: Calling a 4-bet with AK and missing the flop

Game: Cash game 1/2, Stack 200BB
Position: Big Blind
Preflop: Button raises $6, Hero 3-bets $18 from the Big Blind (A♠ K♠), Button 4-bets $50, Hero calls
Flop: 9♥ 7♣ 3♦, Hero checks, Button bets $35
Pot: $138 (including bet), Remaining stack: $150

Thought Process:

1. “Who is structurally favored on this board?”
   → I completely missed, only have Ace-high.
2. “What role does my hand play within my range?”
   → It's weak now, but will become strong if an A or K appears.
3. “Does my opponent have enough hands to fold / do they call a lot?”
   → My opponent is likely to have QQ+. However, the SPR is low and I have 6 outs.

Conclusion: Call $35 (folding is also an option)

Comment: When AK misses in a 4-bet pot, it's a difficult situation. Since the SPR is low and you'll be committed by the turn, folding on the flop is an option. However, you have 6 outs (3 Aces + 3 Kings) and good pot odds, so calling is also possible.

Example 4: 4-bet with KK, then an Ace board

Game: Cash game 1/2, Stack 200BB
Position: Middle Position
Preflop: Hero raises $6 from Middle Position (K♣ K♦), Hijack 3-bets $18, Hero 4-bets $50, Hijack calls
Flop: A♠ Q♣ 7♦
Pot: $103, Remaining stack: $150

Thought Process:

1. “Who is structurally favored on this board?”
   → An Ace appeared, but KK is still a strong hand.
2. “What role does my hand play within my range?”
   → If my opponent has AK, I lose, but if they have QQ or JJ, I win.
3. “Does my opponent have enough hands to fold / do they call a lot?”
   → C-bet small to gauge my opponent's reaction. If they raise, consider folding.

Conclusion: C-bet $30 (approx. 1/4 pot)

Comment: When an Ace appears in a 4-bet pot, approach cautiously. C-bet a small size to gather information, and if your opponent raises, they are likely to have AK, so consider folding. If your opponent calls, consider checking on the turn.

Key Patterns Summary

Pattern 1: 4-bet pot SPR is very low at 1.5-2 (committed situation)

Pattern 2: After 4-betting, the aggressor C-bets 80-100% (maintaining initiative)

Pattern 3: C-bet size of 1/4-1/3 pot is sufficient (pot is already large)

Pattern 4: Be careful with QQ, JJ if overcards appear (consider folding)

Pattern 5: AA, KK almost always C-bet (best hand)

Pattern 6: AK missing is difficult (folding on the flop is an option)

Quiz

Question 1
In a 4-bet pot, the preflop pot is $100, and the remaining stack is $150. What is the SPR?

A) 0.5
B) 1.5
C) 2.5
D) 3.5

Question 2
You 4-bet with AA, and the flop is a K-7-3 dry board. What is the correct action?

A) Check (trap)
B) C-bet small (1/3 pot)
C) C-bet large (2/3 pot)
D) All-in

Question 3
You call a 4-bet with QQ, and the flop is A-9-4. Your opponent C-bets $40. What should you do?

A) Call (bluff catcher)
B) Fold (overcard)
C) Raise (protection)
D) All-in

Question 4
What is an appropriate flop C-bet size in a 4-bet pot?

A) 1/4~1/3 pot
B) 1/2 pot
C) 2/3 pot
D) Full pot

Question 5
What is the biggest characteristic of a 4-bet pot?

A) Wide ranges
B) High SPR
C) Low SPR leading to a committed situation
D) Many bluffs

Answers and Explanations

Question 1
Answer: B) 1.5

Explanation: SPR = Remaining stack / Pot size = $150 / $100 = 1.5. 4-bet pots typically have a very low SPR of 1.5-2, which means it's a committed situation where all-ins frequently occur on the flop.

Question 2
Answer: B) C-bet small (1/3 pot)

Explanation: In a 4-bet pot, AA almost always C-bets. Since the pot is already large, a small size (1/4-1/3 pot) is sufficient. Checking gives a free card, and betting too large might only fold out weak hands.

Question 3
Answer: B) Fold (overcard)

Explanation: In a 4-bet pot, QQ becomes weak when an Ace appears. Since your opponent called a 4-bet and C-bet on an Ace board, they are likely to have AK or AA. Even with a low SPR, folding in an unfavorable situation is safer.

Question 4
Answer: A) 1/4~1/3 pot

Explanation: Since the pot is already large in a 4-bet pot, a small size can still exert sufficient pressure. A 1/4-1/3 pot C-bet is standard, and this allows your opponent to fold or call, leaving room for an all-in on the turn.

Question 5
Answer: C) Low SPR leading to a committed situation

Explanation: The biggest characteristic of a 4-bet pot is that the SPR is very low, at 1.5-2. This means that most of the pot has already been invested on the flop, so by the turn or river, it's almost an all-in situation. Therefore, the flop decision is very important.