Efficiency and rate stats
PIE
What does PIE mean in basketball?
球员影响估值Player impact estimate
The NBA’s own composite: what share of everything positive that happened in the game this player produced. By design, everyone in the game adds up to roughly 100%.
Updated 20 Aug 2026
How it is worked out
(PTS + FGM + FTM − FGA − FTA + DREB + 0.5 × OREB + AST + STL + 0.5 × BLK − PF − TOV) ÷ (GmPTS + GmFGM + GmFTM − GmFGA − GmFTA + GmDREB + 0.5 × GmOREB + GmAST + GmSTL + 0.5 × GmBLK − GmPF − GmTOV)
The Gm prefix means the total for every player in the game — the numerator’s expression summed across all of them.
Worked through
Ten players are on court, so 10% is average. Eighteen per cent is already the best player on the team.
What it leaves out
Like PER it cannot see off-ball defense or the space a shooter’s gravity creates, so the players who contribute most in those two ways come out low.
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One term down, the whole sheet to go
The numbers on a sheet lean on each other. How many free throws appear depends on the team foul count; how many rebounds exist depends on how both teams shot. Reading a whole game means reading them together.