CO 4-Bet Pot Preflop Strategy
CO 4-Bet Pot Preflop Strategy
The strategic approach for a player in the Cutoff position when the preflop action has escalated to a 4-bet, involving decisions on continuing with value hands, bluffs, or folding based on stack depth, opponent ranges, and pot odds.
Overview
When you are in the Cutoff (CO) and a 4-bet occurs preflop, you are typically either the 4-bettor (if you raised first and then re-raised a 3-bet) or the player facing a 4-bet (if you 3-bet and got 4-bet). The CO is a late position with strong influence on the hand, but in a 4-bet pot, ranges become much narrower and the size of the pot often makes postflop play awkward.
As the 4-Bettor
If you opened from the CO and faced a 3-bet (usually from the blinds or Button), your 4-bet range should be polarized. For value, you want hands that can call a potential 5-bet shove, such as AA, KK, QQ, and AK. Against tight 3-bettors, you might also include AQs or JJ. Your bluff 4-bet hands should be suited connectors like A5s, KQo, or small pocket pairs that have good blocker effects (blocking AA, KK, AK) and can occasionally flop strong draws. The size of your 4-bet should typically be about 2.2-2.5x the 3-bet size, or around 20-22 big blinds total if effective stacks are 100bb.
Example Range (100bb, vs aggressive 3-bettor):
As the Caller of a 4-Bet
If you 3-bet from the CO and faced a 4-bet, you have three options: fold, call, or 5-bet shove. Calling a 4-bet is often a mistake unless you have a hand like AA/KK (to trap) or a very strong playable hand like AKo/AQs with good postflop playability. Most of the time, you should either 5-bet shove with your premium hands or fold marginal hands. The CO’s relative position after the flop is still good if you call, but the pot is already large, and effective stacks are awkward (often around 70-75bb behind).
Factors to Consider
- Stack Depth: At 100bb, 4-bet pots are common. At deeper stacks (200bb+), calling 4-bets becomes more viable because implied odds improve. At short stacks (40bb), 4-bet shoving or folding is typical.
- Opponent Tendencies: Against a tight raiser, fold more. Against a loose aggressive player, call or re-raise more often.
- Position: Even though CO is late, after the flop in a 4-bet pot, you will often be out of position if the Button or blinds called. Being in position postflop is a major advantage.
- Pot Odds: When facing a 4-bet, you usually need about 25-30% equity to call profitably, assuming you realize your equity well. But realized equity is lower out of position.
Common Adjustments
- In Position (Button or CO): You can call 4-bets more liberally with hands like AJs, KQs, or medium pairs because you can control the pot size.
- Out of Position (SB/BB): Avoid calling 4-bets; either push or fold. The disadvantage of being OOP magnifies in a large pot.
- Against a nit: Fold most 4-bets except AA/KK.
Conclusion
CO 4-bet pot strategy requires careful range construction and awareness of stack sizes. Polarizing your 4-bet range and rarely calling 4-bets (except with very strong hands) is a sound default at typical 100bb cash games. Adjust based on opponent and position.