The NBA's Efficiency (EFF) statistic is a quick all-in-one box-score rating: (points + rebounds + assists + steals + blocks) minus (missed field goals + missed free throws + turnovers). It gives a single number for overall game impact and is easy to calculate by hand. It's simpler than advanced metrics like PER, which adjust for pace and minutes, but useful for a fast read on a single game.
Key points
- Adds positives, subtracts misses and turnovers
- Single all-round impact number
- Simpler than PER
- Good for single-game reads
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