BB/100
每百手大盲注
Context: Term: Big Blinds per 100 Hands (BB/100) Big Blinds per 100 Hands (BB/100) is a core metric for measuring a Texas Hold'em player's long-term profitability. It represents the average number of big blinds won per 100 hands played. In practice, this value is used to evaluate strategy effectiveness or compare player skill levels: a positive value indicates profit, a negative value indicates loss, and a higher value suggests a greater technical edge. For example, if a professional player has a BB/100 of 5 in an online 6-max table, it means they net 5 big blinds every 100 hands. If the big blind is $1, then they earn $5 per 100 hands. This metric requires a large sample size (typically at least tens of thousands of hands) to be statistically significant; short-term fluctuations should not be trusted.
Context: Term article: Big Blinds per 100 hands (BB/100)
Overview
BB/100 (Big Blinds per 100 hands) is a core statistical metric in Texas Hold'em that measures a player's long-term profitability. It indicates the average number of big blinds won per 100 hands. For example, a BB/100 of 5 means an average profit of 5 big blinds every 100 hands.
Calculation
BB/100 = (Total Profit / Total Hands) × 100, where total profit is expressed in big blinds. For example, in an NL100 game (big blind $1), if you profit $500 over 10,000 hands, then BB/100 = (500 / 10000) × 100 = 5.
Applications
- Evaluating player skill: Professional players in high-stakes games typically have a BB/100 between 2 and 5, while excellent players can reach 5–10. A BB/100 above 10 usually indicates a small sample size or extremely weak opponents.
- Comparing across stakes: Since BB/100 eliminates stake differences, it can be used to compare performance across different blind levels. For example, a BB/100 of 3 at NL200 is equally efficient as a BB/100 of 3 at NL100.
- Sample size requirements: Short-term variance is high; at least 10,000 hands are generally needed for a preliminary assessment, and 50,000+ hands are required for statistical significance.
Limitations
- Not applicable to tournaments: In tournaments, stack depth varies greatly, so metrics like ROI (Return on Investment) or ICM-adjusted measures are used instead.
- Ignores rake: Actual profit must account for rake; in high-rake environments, BB/100 will be significantly lower.
- Stake differences: Players at higher stakes tend to have lower BB/100 than those at lower stakes because opponents are tougher.
Related Terms
- Win Rate: Similar to BB/100, but usually expressed as chips or money won per 100 hands.
- Big Blind: The base unit in BB/100.
- Standard Deviation: A measure of profit volatility, used together with BB/100 to assess risk.