Cutoff Opening Range Guide: How to Maximize Positional Advantage

1. The Positional Value of the Cutoff

The Cutoff (CO) is the second-to-last position to act at the table, only behind the Button (BTN). Its core advantages are:

• It always acts after the Button postflop (unless the Button enters the pot), giving it absolute informational advantage.
• It can easily steal the blinds, especially against tight-passive small and big blinds.
• In multi-way pots, it can use postflop position to control the pot size.

Therefore, the CO's opening range should be wider than early positions, but caution is needed against the Button's response.

2. Standard Opening Range (6-Max, No Early Position Raise)

Below is a solid CO opening range example for typical cash games (100BB deep, no specific read on opponents):

• Strong Hands (3-bet or raise) : AA, KK, QQ, AKs, AKo (sometimes flat to trap)
• Raising Range (approximately 20%-25% of hands) :
  • All pocket pairs (22+)
  • All suited connectors (45s+, excluding very low ones)
  • All suited aces (A2s+)
  • Offsuit aces (ATo+)
  • Some suited two-high cards (K9s+, Q9s+, J9s+)
  • Some offsuit Kings (KTo+)
  • Some offsuit Queens (QTo+)
  • Some suited gappers (T8s, 97s, etc.)

Example: T9s (suited 10-9) is a standard raising hand in the CO because it has straight and flush potential and position is favorable.

3. Adjustment Factors

1. Opponent Type

• Tight-passive blinds: Can raise more to steal (e.g., add K8s, Q9o, A5o, etc.).
• Loose-aggressive blinds: Tighten your range to avoid frequent 3-bets; prefer hands that play well against 3-bets (e.g., high pairs, AJs+).
• Button style: If the Button frequently calls, prioritize hands with showdown value (e.g., medium pairs, suited Ax). If the Button often 3-bets, reduce marginal hands.

2. Blind Size and Position

• Against a tight-passive small blind, CO can raise over 40% of hands. Against a loose-aggressive big blind, reduce to 18%-20%.
• When the blinds have deep stacks (>150BB), reduce steal frequency to avoid being exploited.

3. Early Position Action

• If an early position player limps, CO should raise to isolate, with a slightly tighter range but still including most suited connectors and small to medium pairs.
• If an early position player raises, CO's 3-bet range should focus on hands with blockers (e.g., AQo against a loose-aggressive opponent, AK against a tight player).

4. General Postflop Strategy

• Continuation Bet: On dry boards (e.g., K-7-2 rainbow) use high pairs or top pair for value; typical c-bet frequency is around 65%-75%.
• Leverage Position: After being called on the flop, use position on the turn to decide whether to check for pot control or bluff.
• Facing a Check-Raise: If an opponent check-raises the flop, generally call with top pair or better or a strong draw, and fold weak pairs.

5. Common Mistakes and Tips

• Mistake: Using too many weak suited connectors (e.g., 32s) to steal blinds from the CO, then struggling to defend against postflop aggression.
• Tip: When stacks are shallow (<40BB), your opening range should converge toward a push/fold strategy - go all-in with strong hands and fold marginal ones.
• Advanced Technique: Occasionally flat (slow-play) AA or KK from the CO to balance your range, but do so no more than 10% of the time.

6. Summary

The Cutoff's opening range is dynamic; the core principle is to balance value and stealing. Without specific reads, a recommended raising range is about 22%-24% of hands. Remember: position is your greatest asset. Use it to pressure opponents, but always be wary of the Button's 3-bet.