劫持位攻击频率（HJ AFq）

Term Explanation

HJ AFq is a common abbreviation in poker data analysis, where HJ stands for Hijack (the position immediately to the right of UTG); AFq stands for Aggression Frequency. This metric quantifies a player's aggressive tendencies from a specific position, typically calculated from a large sample of hands.

Calculation

Generally, the formula for AFq is:

AFq = (Number of Bets + Number of Raises) / (Number of Bets + Number of Raises + Number of Checks + Number of Calls) × 100%

This formula covers post-flop actions (flop, turn, river), though some tracking tools also provide a pre-flop version. Higher values indicate that the player in that position tends to play aggressively rather than passively calling or checking.

Practical Significance

• High AFq (>50%): The Hijack player frequently bets or raises, possibly holding strong hands or applying continuous pressure. Opponents may consider calling with a tighter range or re-raising at the right moment.
• Low AFq (<30%): The player tends to check or call more often, likely only attacking when they have a strong hand. Opponents can bluff more frequently or exploit positional advantage.

Positional Context

The Hijack is one of the later positions pre-flop (only earlier than the Button and Cutoff), providing some positional advantage. Therefore, a typical TAG player's HJ AFq usually falls between 40%–60%. However, this value varies based on game type (cash vs. tournament), opponent skill level, and table dynamics.

Notes

• Using AFq alone can be misleading; it should be combined with metrics like Aggression Factor (AF) or Went to Showdown (WTSD) for a comprehensive assessment.
• Insufficient sample size (typically less than 100 hands) makes the statistic unreliable.
• In short-stack or late tournament stages, AFq may generally decrease due to ICM pressure.