CO 200bb Open Jam

Term Breakdown

• CO: Cutoff, located to the right of the button, one of the last positions to act preflop, offering positional advantage.
• 200bb: Effective stack of approximately 200 big blinds, which is deep stacked and typically implies higher risk.
• Open Jam: Open shoving all-in, skipping standard raises and putting the entire stack at risk.

Strategic Considerations

At 200bb depth, an Open Jam is very rare because shoving puts a large amount of chips at risk, and opponents can call with tighter ranges. Usually, in deep stack scenarios, players prefer smaller raises or small 3-bets to control the pot and use position. If a CO player chooses to Open Jam, it may be based on the following assumptions:

• Opponents are insensitive to the shoving range and will call with wider ranges.
• The player holds a strong hand (e.g., AA, KK) and wants to take down the pot immediately, but with deep stacks the caller's pot odds are favorable, so they might still call.
• Or as an exploitative strategy targeting tight-passive players.

In actual gameplay, the standard approach is to open to 2.5-3bb from the CO, balancing value hands and bluffs. A 200bb Open Jam is more common in late tournament stages or specific heads-up situations, not in standard deep stack play.

Risk and Reward

• Risk: If called, the player is often at a disadvantage or only slightly ahead; losing a deep stack is costly.
• Reward: Winning the pot outright (1.5bb) is disproportionate to the risk, usually resulting in negative expected value.

Therefore, this term is mostly used to describe an extreme or misjudged play, not a strategy recommended by most players.