Canada Basketball Analytics

WNBA Advanced Metrics

Advanced metrics are exactly what you think they are, beyond the surface of the basic box score what numbers allow you to get a deeper dive of a team or player’s performance. Here are what we consider as advanced metrics within the WNBA.

OFFRTG (Offensive Rating): Measures a team’s points scored per 100 possessions. On a player level this statistic is team points scored per 100 possessions while he is on court

Calculation: 100 * ((Points) / (POSS))

DEFRTG (Defensive Rating): The number of points allowed per 100 possessions by a team. For a player, it is the number of points per 100 possessions that the team allows while that individual player is on the court

Calculation: 100 * ((Opp Points) / (Opp POSS))

NETRTG (Net Rating): Measures a team’s point differential per 100 possessions. On a player level this statistic is the team’s point differential per 100 possessions while he is on court

Calculation: OFFRTG – DEFRTG

AST% (Assist Percentage): The percentage of teammate field goals a player assisted on while he was on the floor

Calculation: AST / (TmFGM – FGM)

AST/TO (Assist to Turnover Ratio): The number of assists for a player or team compared to the number of turnovers they have committed

Calculation: AST / TOV

AST Ratio (Assist Ratio): Is the number of assists a player averages per 100 possessions used

Calculation: (AST * 100) / (POSS)

%OREB (Percent of Team’s Offsenive Rebounds): The percentage of a team’s offensive rebounds that a player has while on the court

%DREB (Percent of Team’s Defensive Rebounds): The percentage of a team’s defensive rebounds that a player has while on the court

REB% (Rebound Percentage): The percentage of available rebounds a player or team grabbed while on the floor

TO Ratio (Turnover Ratio): The number of turnovers a player or team averages per 100 possessions used

Calculation: (TOV * 100) / (POSS)

eFG% (Effective Field Goal Percentage): Measures field goal percentage adjusting for made 3-point field goals being 1.5 times more valuable than made 2-point field goals

Calculation: ((FGM + (0.5 * 3PM)) / FGA

TS% (True Shooting Percentage): A shooting percentage that factors in the value of three-point field goals and free throws in addition to conventional two-point field goals

Calculation: PTS / [2 * (FGA + 0.44 * FTA)]

USG% (Usage Percentage): The percentage of team plays used by a player when he is on the floor

Calculation: (FGA + Possession Ending FTA + TO) / POSS

PACE (Pace): The number of possessions per 48 minutes for a team or player

PIE (Player Impact Estimate): PIE measures a player’s overall statistical contribution against the total statistics in games they play in

Calculation: (PTS + FGM + FTM – FGA – FTA + DREB + (.5 * OREB) + AST + STL + (.5 * BLK) – PF – TO) / (GmPTS + GmFGM + GmFTM – GmFGA – GmFTA + GmDREB + (.5 * GmOREB) + GmAST + GmSTL + (.5 * GmBLK) – GmPF – GmTO)