Advanced GTO, Poker Strategy
Defending C-Bets on Ace-High Boards in 3-Bet Pots 
By: Justin Saliba
June 17, 2025 • 5 min
Defending C-bets on Ace-High Boards 3-Bet Pots
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We already covered how to defend in position versus c-bets on ace-high boards in single raised pots , so today we will dive deeper into 3-bet scenarios. 

In this article, we will cover different board textures and see how to proceed both in position and out of position when you call a 3-bet preflop and then face a bet.

Defending On Ace-High Boards In Position –  As8h3d vs. As9h8h

We will start with an in-position example, firstly going over the dry ace-high flop and then analyzing connected board texture. This is a spot where we open from the BTN, face BB 3-bet, and decide to call preflop.

Key assumptions:

  • The hand is played 100 bb deep 
  • We are opening from the button 
  • Big blind 3-bets
  • We call a 3-bet
  • Our opponent c-bets on the flop

Let’s firstly look at an example of As8h3d. In these situations with a very dry flop, your opponent will be betting around 60% of the time and usually pick a small sizing because of the range advantage. 

Defending C-Bets IP in 3-bet pots - As8h3d

While our defense strategy depends on the actual sizing, we need to defend around 85% of the hands due to the MDF (Minimum Defense Frequency) when facing a small bet of around 25% of the pot.

In this situation, we will be calling the vast majority of the hands, but we still have a 10% raising range, which is mostly comprised of bottom sets, strong top pairs, and a few gutshots or runner-runner draws to balance things out. 

If your opponent chooses a bigger bet sizing for a c-bet, then we apply only a calling strategy and continue with a narrower range, dropping it down to around 60% of the hands.

The same logic applies to wet boards as well. Let’s look at As9h8h as an example.

Defending Small C-Bets IP in 3-bet pots - As8h3d

Just as on a dry board, we stick around 80% of the time against a small c-bet and continue with 60% of the hands when facing a bigger bet. 

As you can see in the example above, we will once again be calling most of the time, with around 62% of the hands. This includes any pair, open-enders, and even guthosts.

Regarding the 15% raise range, we mostly select our strongest hands, such as top pairs, two-pair combos, and sets. In this spot, we are only folding naked combos that pretty much have no value.

If we face a larger c-bet in this exact situation, we pretty much drop our raising range and defend all the hands we continue with by calling, with a few exceptions of our strongest hands.

Defending Large C-Bets IP in 3-bet pots - As9h8h

Key takeaways

  • Defend over 80% of the time against small c-bets and have a raising range.
  • Defend around 60% of the time against big c-bets and have only a calling range.
  • Stick to a similar strategy for both dry and connected boards.

Defending On Ace-High Boards OOP – As9h4c vs. As9h8h

Now, let’s look at the hands when we are opening from the CO, face a 3-bet from the BTN, call out of position, and face a bet after checking to our opponent.

Assumptions:

  • We are playing 100bb deep 
  • We are opening from the CO 
  • BTN 3-bets
  • We call a 3-bet
  • We check to the BTN on the flop

Let’s firstly look at a dry board of As9h4c.

Defending C-Bets OOP on Dry Flops in 3-bet pots - As9h4c

After we check the flop, our opponent will c-bet using almost exclusively a small bet sizing, making this much easier to counter. 

When we face a c-bet, GTO poker says we should defend around 55% of the hands. This includes calling with 33% of the range and raising aggressively with around 22% of the time.

Our raising range consists of strong hands such as sets, two pairs, AKs, and AQs, followed by weaker hands with runner-runner draws and smallest pocket pairs. 

As for calling, we do that with other Ax hands and pocket pairs. This gives us a nice balance between raising and calling hands, allowing us to proceed on various turn cards and defend enough hands on future streets to avoid being exploited. 

When it comes to a connected board, the biggest difference is that your opponent will be c-betting these less often. For example, he will only be firing a c-bet around 25% of the time on As9h8h.

Defending C-Bets OOP on Connected Flops in 3-bet pots - As9h8h

Against this strategy, you should still be defending 64% of the time. Surprisingly, we will be raising almost 25% of the hands, which includes sets, two-pair combos, various open-enders, and gutshots. 

The rest of the hands that have any equity leans towards just calling a c-bet. Even your strongest top-pair hands will just check-call as a default option.

Key takeaways

  • Always check on the flop after calling a 3-bet OOP.
  • Have an aggressive raising range versus a c-bet with the strongest holdings and weak draws.
  • Call all of the middling hands that has showdown value and equity.
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