HJ 100bb Defense

Concept Overview

HJ 100bb Defense refers to the recommended calling and 3-betting ranges for a player seated in the Hijack position (one seat to the right of the cutoff) when facing an open-raise, assuming both players have 100 big blinds (bb) effective stacks. This scenario is common in 6-max and full-ring cash games where stack sizes are deep. The defense range is influenced by the position of the raiser, the stack depth, and the dynamics of the table.

Key Factors

Positional Awareness

The Hijack is a middle-to-late position, meaning the HJ has fewer players behind them (cutoff, button, blinds) compared to earlier positions. When defending, the HJ must consider the risk of being 3-bet or squeezed by players yet to act. A tighter defense range is typically used against early position raises, while a wider range is permissible against late position opens.

Stack Depth (100bb)

At 100bb effective, implied odds are significant, allowing for more speculative hands to be called. However, deep stacks also mean post-flop play is complex, and opponents can apply pressure. Typical defense ranges include suited connectors, small pocket pairs, and suited aces for calling, along with value 3-bets (e.g., TT+, AQ+) and some bluffs (e.g., suited broadway cards).

Example Ranges (Typical)

• Calling range (vs. MP open): Approximately 8-10% of hands, such as 77-TT, suited connectors (98s+), AJo, KQo, ATs, QJs.
• 3-betting range (value): JJ+, AKo, AQs (about 3-4%).
• 3-betting range (bluffs): Some hands like A5s, KTs, or 76s to balance the value range.

These ranges adjust based on opponent tendencies. Against loose openers, the defense range widens; against tight players, it narrows.

Strategic Considerations

Calling vs. 3-Betting

Calling keeps the pot smaller but allows multi-way pots, which is dangerous in position. 3-betting puts pressure and can win the pot pre-flop, but risks being 4-bet. At 100bb, the HJ should favor calling with hands that play well post-flop and 3-betting with hands that have equity when called.

Post-Flop Play

When calling, the HJ is often out of position against the raiser (if raiser is in EP) but in position if the raiser is from LP. Post-flop, the HJ must be aware of stack sizes and avoid committing too much with marginal hands. Deep stack play requires careful hand reading and pot control.

Conclusion

HJ 100bb Defense is a fundamental concept for cash game players. Understanding the appropriate ranges and adjustments helps maintain a balanced strategy and prevents exploitation. Players should study solver outputs and practice to internalize these defense ranges.