Stat Formulas
Below are the formulas used across BSN Stats to calculate advanced basketball metrics.
Effective Field Goal % (EFG%)
EFG% = (FGM + 0.5 × 3PM) ÷ FGA
Adjusts field goal percentage to account for the fact that three-point field goals are worth more than two-point field goals.
Terms:
- FGM:Field Goals Made
- 3PM:3-Point Field Goals Made
- FGA:Field Goals Attempted
3-Point Field Goal Percentage (3FG%)
3FG% = 3PM ÷ 3PA
The percentage of three-point field goals made out of total three-point field goals attempted.
Terms:
- 3PM:3-Point Field Goals Made
- 3PA:3-Point Field Goals Attempted
2-Point Field Goal Percentage (2FG%)
2FG% = 2PM ÷ 2PA
The percentage of two-point field goals made out of total two-point field goals attempted.
Terms:
- 2PM:2-Point Field Goals Made
- 2PA:2-Point Field Goals Attempted
Free Throw Percentage (FT%)
FT% = FTM ÷ FTA
The percentage of free throws made out of total free throws attempted.
Terms:
- FTM:Free Throws Made
- FTA:Free Throws Attempted
3-Point Rate (3P Rate%)
3P Rate% = 3PA ÷ FGA
The percentage of field goal attempts that are three-point attempts.
Terms:
- 3PA:3-Point Field Goals Attempted
- FGA:Field Goals Attempted
Offensive Rebound Percentage (ORB%)
ORB% = Team ORB ÷ (Team ORB + Opponent DRB)
An estimate of the percentage of available offensive rebounds a player or team grabbed while on the floor.
Terms:
- Team ORB:Team Offensive Rebounds
- Opponent DRB:Opponent Defensive Rebounds
Defensive Rebound Percentage (DRB%)
DRB% = Team DRB ÷ (Team DRB + Opponent ORB)
An estimate of the percentage of available defensive rebounds a player or team grabbed while on the floor.
Terms:
- Team DRB:Team Defensive Rebounds
- Opponent ORB:Opponent Offensive Rebounds
Total Rebound Percentage (TRB%)
TRB% = Team TRB ÷ (Team TRB + Opponent TRB)
An estimate of the percentage of available rebounds a player or team grabbed while on the floor.
Terms:
- Team TRB:Team Total Rebounds
- Opponent TRB:Opponent Total Rebounds
Assist to Turnover Ratio (AST/TO)
AST/TO = AST ÷ TOV
The ratio of assists to turnovers, measuring a player's or team's ball-handling efficiency.
Terms:
- AST:Assists
- TOV:Turnovers
Turnover Percentage (TOV%)
TOV% = TOV ÷ (FGA + 0.44 × FTA + TOV)
An estimate of turnovers per 100 plays.
Terms:
- TOV:Turnovers
- FGA:Field Goals Attempted
- FTA:Free Throws Attempted
Free Throw Rate (FT Rate%)
FT Rate% = FTA ÷ FGA
The number of free throw attempts per field goal attempt.
Terms:
- FTA:Free Throws Attempted
- FGA:Field Goals Attempted
Offensive Rating (OFFRTG)
OFFRTG = Points Scored ÷ (FGA + TOV + 0.44 × FTA - ORB) × 100
An estimate of points produced per 100 possessions by a team or player.
Terms:
- Points Scored:Total points scored by the team
- FGA:Field Goals Attempted
- TOV:Turnovers
- FTA:Free Throws Attempted
- ORB:Offensive Rebounds
Defensive Rating (DEFRTG)
DEFRTG = Opponent Points ÷ (Opponent FGA + Opponent TOV + 0.44 × Opponent FTA - Opponent ORB) × 100
An estimate of points allowed per 100 possessions by a team or player.
Terms:
- Opponent Points:Total points scored by opposing teams
- Opponent FGA:Field Goals Attempted by opponents
- Opponent TOV:Turnovers by opponents
- Opponent FTA:Free Throws Attempted by opponents
- Opponent ORB:Offensive Rebounds by opponents