CO Heads-Up Pot Preflop Strategy

Position Advantage and Strategy Fundamentals

Cutoff (CO) is a position with significant information advantage in preflop action because only the Button (BTN) and blinds have yet to act when it is its turn. In a heads-up pot scenario (i.e., after CO raises and only the blind player calls), CO is out of position postflop (the blind player acts first), so the preflop strategy needs to balance value and bluffs, and consider opponent tendencies.

Preflop Raising Range

Generally, CO should use a wider raising range in heads-up pots, including all pairs, most high cards (e.g., A, K, Q with kickers), suited connectors, and some suited gappers. A typical strategy is to raise to 2.5–3 big blinds. Facing possible defending ranges from the blind players, CO needs to avoid over-folding and maintain aggression.

Responding to Reraises

When the blind player reraises, CO should decide based on opponent tendencies and hand strength. Typically, strong hands (e.g., JJ+, AK) can 4-bet or go all-in; medium hands (e.g., ATs, KQ) can call or fold; weak hands fold directly. The positional disadvantage makes CO need to handle marginal hands more cautiously.

Postflop Impact

Preflop strategy directly affects postflop play. Although CO is out of position postflop, through the range built preflop, it can continuation bet or check-raise on the flop to apply pressure. A common continuation bet frequency is about 60–70%, but it needs to be adjusted based on the board structure.

Key Variables

• Opponent type: Against loose-aggressive players, CO can moderately widen the range and increase 4-bets; against tight-passive players, reduce bluffs and focus on value betting.
• Stack depth: In deep stacks, CO can call reraises more to see flops; in short stacks, should lean towards all-in or fold.
• Blind tendencies: If the blind player folds frequently, CO can expand the raising range; if they defend frequently, need stronger hands.