CO 150bb Steal

Concept and Purpose

A CO 150bb Steal refers to an open-raise from the cutoff (CO) position when the player has a stack of 150 big blinds (bb). The primary goal is to “steal” the blinds—win the pot preflop without contest—by exploiting the positional disadvantage of the small blind (SB) and big blind (BB). This is a standard aggressive play in no-limit hold’em cash games and tournaments, especially when the blinds are tight or passive.

Why the Cutoff?

The cutoff is the second-last position before the button. It offers a strong stealing opportunity because:

• Only three players act after you (button, SB, BB), compared to earlier positions.
• The button may be cautious if they have a medium stack or tight range.
• The blinds are out of position and often fold marginal hands.
• With 150bb, you have a deep stack, allowing flexibility to continue postflop if called or 3-bet.

Stack Depth Considerations

At 150bb (deep stack), steal ranges can be wider because:

• You have implied odds to see flops with speculative hands (e.g., suited connectors, small pairs).
• You can call a 3-bet profitably with certain hands if the opponent’s range is exploitable.
• Postflop play offers more maneuverability (bluffs, semi-bluffs).

However, deep stacks also increase the risk of getting 3-bet by blinds holding strong hands or aggressive players. A typical steal raise size at 150bb is 2.5x to 3x the big blind (e.g., 3bb or 4.5bb). Larger sizes reduce the frequency of calls but increase risk when called.

Typical Stealing Range

A standard CO steal range at 150bb might include:

• All pairs (22+)
• All suited aces (A2s+)
• Strong offsuit aces (ATo+)
• Broadways (KQo, KJs, QJs, JTs)
• Some suited connectors (65s+, T9s)
• Occasionally weaker hands like A9o or K9o against very tight blinds.

This range constitutes roughly 25-35% of hands, adjusting based on opponent tendencies.

Adjustments and Counterplay

• Against tight blinds: Steal more frequently, even with mediocre hands.
• Against aggressive 3-bettors: Tighten your steal range and consider 4-betting or folding to 3-bets.
• Against calling stations: Steal less, but when you do steal, use hands that play well postflop (e.g., suited connectors).
• Stack sizes matter: If a blind has a short stack (<20bb), they may shove over your steal with any pair or ace. Adjust by raising slightly larger and calling off with strong hands.

Example Hand

Example for illustration: Hero in CO with 150bb holds 7♠8♠. Folds to Hero, who raises to 3bb. Both blinds fold. Hero wins the 1.5bb pot (SB+BB) risk-free. Over many such steals, this yields a positive expectation.

Risks and Rewards

• Reward: Winning 1.5bb per steal without flop, increasing win rate.
• Risk: Facing a 3-bet, call, or shove forces you to defend or fold. Deep stacks amplify potential losses if you play poorly postflop.

Overall, the CO 150bb Steal is a fundamental profitable play, but success depends on reading opponents and adjusting range accordingly.