How to Use Advanced Stats Effectively
Advanced stats are tools, not truths. No single metric tells the whole story. The best analysts combine multiple metrics to form a complete picture, always considering context: era, team system, role, health, and sample size.
Start with the "big three" of advanced metrics: TS% for shooting efficiency, BPM for overall impact, and Net Rating for lineup quality. These three metrics, used together, capture most of what matters in basketball. Add PER for per-minute production, Usage Rate for volume context, and Defensive Rating for the other end of the floor.
When evaluating a player, ask: (1) How efficient is their scoring? (TS%, eFG%), (2) How much do they contribute beyond scoring? (BPM, VORP), (3) How do they affect their team when on the floor? (Net Rating, on/off splits), (4) What are their weaknesses? (check limitations of each metric). No player excels in every metric, and that's okay. Basketball is a team sport where complementary skills create championship-caliber rosters.
Frequently Asked Questions
Which advanced stat is the most important?
No single stat is most important. For offensive evaluation, TS% is the gold standard for efficiency. For overall impact, BPM or VORP are the most comprehensive box-score metrics. For team quality, Net Rating is the strongest predictor of winning. Use multiple metrics together for a complete picture.
Why do different advanced stats sometimes disagree?
Different metrics measure different things and use different methodologies. PER rewards volume; BPM uses regression modeling; Win Shares incorporate team context. A player who scores a lot but inefficiently will look good in PER but mediocre in TS%. This disagreement is actually informative - it reveals the multidimensional nature of basketball performance.
Can advanced stats capture defense?
Partially, but it remains the biggest weakness of box-score analytics. Steals and blocks capture only a fraction of defensive impact. Metrics like DRTG depend heavily on team context. The best defensive metrics (DRAPTOR, DRAPM) require proprietary tracking data and are still imperfect. The eye test remains essential for defensive evaluation.
How should I use this glossary?
Bookmark it as a reference. When you encounter a stat you don't understand, look it up here. Pay special attention to the 'Limitations' section - knowing what a stat can't tell you is as important as knowing what it can. Use the 'Related Metrics' links to explore connected concepts.
Are these metrics the same as what teams use internally?
Teams use these metrics plus many proprietary ones based on Second Spectrum tracking data (player movement, shot contest distance, screen effectiveness, etc.). The public metrics here capture perhaps 60-70% of what internal models measure. The fundamentals are the same, but teams have more granular data.