BASKETBALL ANALYTICS GLOSSARYKEY METRICS EXPLAINED

A per-minute rating that summarizes a player's statistical accomplishments in a single number. PER accounts for positive contributions (field goals, free throws, assists, rebounds, blocks, steals) and negative ones (missed shots, turnovers, personal fouls), adjusted for pace and league averages. The league average PER is always 15.0.

A shooting efficiency metric that accounts for two-point field goals, three-point field goals, and free throws in a single number. Unlike basic field goal percentage, TS% properly weights the extra value of three-pointers and includes free throw shooting, giving a more accurate picture of how efficiently a player converts possessions into points.

A field goal percentage metric that adjusts for the fact that three-point field goals are worth 50% more than two-point field goals. A player who shoots 40% from three contributes the same points per shot as a player shooting 60% from two, and eFG% captures this equivalence. It does not factor in free throws.

A per-possession measure of a player's or team's offensive output, expressed as points scored per 100 possessions. OER normalizes scoring production for pace, making it possible to compare offenses across different teams, leagues, and eras that play at vastly different speeds.

The defensive counterpart to OER, measuring points allowed per 100 possessions. A lower DER indicates a more effective defense. Like OER, it adjusts for pace so that defensive performance can be compared fairly across different playing environments.

The official performance index used in EuroLeague and many European basketball competitions. VAL sums positive statistical contributions (points, rebounds, assists, steals, blocks, drawn fouls) and subtracts negative ones (missed field goals, missed free throws, turnovers, fouls committed). It is a cumulative stat, not pace-adjusted.

A comprehensive performance metric used widely in European and international basketball, nearly identical to VAL in calculation. PIR sums all positive box score contributions and subtracts all negative ones. Some leagues use PIR and VAL interchangeably, while others apply minor variations in the counting stats included.

A proprietary composite metric developed by Scouting4U that evaluates a player's overall contribution by weighting efficiency, volume, defensive impact, and consistency across multiple statistical dimensions. S-VALUE is normalized across leagues, enabling direct comparison between players competing in different competitions worldwide.

An estimate of the percentage of team possessions a player uses while on the floor through field goal attempts, free throw attempts, and turnovers. A player with a 30% usage rate is directly involved in the outcome of nearly a third of their team's possessions when they are in the game.

A box-score-based estimate of the points per 100 possessions a player contributes above a league-average player, translated to an average team. BPM uses a regression model trained on historical data to estimate a player's overall impact from box score stats alone, without requiring play-by-play or lineup data.

A cumulative stat derived from BPM that estimates the total points per 100 possessions a player contributes above a replacement-level player (defined as a -2.0 BPM player), scaled by minutes played and games. VORP captures both quality of play and availability over a full season.

An estimate of the number of wins a player produces for their team through both offensive and defensive contributions. Win Shares allocates credit for team wins to individual players based on their offensive and defensive production relative to a league-average baseline.

The proportion of a player's total field goal attempts that come from three-point range. A 3PAr of 0.40 means 40% of the player's shots are threes. This metric reveals a player's shot profile and spatial orientation independent of makes or misses.

The ratio of free throw attempts to field goal attempts, measuring how frequently a player gets to the foul line relative to their shot volume. A high FTr indicates a player who draws contact effectively through driving, posting up, or aggressive play.

The average number of points a player scores per field goal attempt, including the added value of three-pointers. PPS provides a straightforward measure of shot quality and selection that is easy to interpret: higher PPS means more points produced per shot taken.

An estimate of the percentage of available offensive rebounds a player grabs while on the floor. Rather than counting total offensive rebounds, ORB% measures the rate at which a player converts missed teammate shots into second-chance opportunities relative to the total opportunities available.

An estimate of the percentage of available defensive rebounds a player secures while on the floor. DRB% isolates a player's ability to end opponent possessions by securing the defensive board, adjusted for the total rebound opportunities available.

The combined percentage of all available rebounds (offensive and defensive) a player grabs while on the floor. TRB% gives a holistic view of a player's rebounding dominance by combining both ends of the floor into a single rate metric.

An estimate of the number of possessions a team uses per 48 minutes (or 40 minutes in international basketball). PACE quantifies the speed at which a team plays and is the foundation for pace-adjusted statistics. Teams with a high PACE play fast, use quick possessions, and push in transition.

An estimate of turnovers committed per 100 plays used. TOV% measures how frequently a player turns the ball over relative to their total possessions used (field goal attempts, free throw attempts, and turnovers), isolating ball-handling reliability from overall usage volume.

The defensive component of Box Plus/Minus, estimating a player's defensive contribution in points per 100 possessions above a league-average defender. DBPM uses box score stats (steals, blocks, rebounds, personal fouls) and a regression model to approximate defensive impact without requiring tracking or play-by-play data.

An estimate of the percentage of opponent possessions that end with a steal by the player while they are on the floor. STL% measures a player's ability to create turnovers through anticipation, quick hands, and defensive positioning.

An estimate of the percentage of opponent two-point field goal attempts that are blocked by the player while they are on the floor. BLK% measures rim-protection ability and shot-altering presence independent of team context and pace.

The defensive component of Win Shares, estimating the number of wins a player contributes through defensive performance. DWS credits players for helping their team allow fewer points than a league-average defense, distributed based on individual defensive metrics and minutes played.

The difference between a team's (or lineup's) offensive rating and defensive rating, measured in points per 100 possessions. A positive Net Rating means the team outscores opponents on a per-possession basis. Net Rating can be calculated for full teams, specific lineups, or individual player on/off splits.

Points scored per 100 possessions by a team or while a specific player is on the floor. Offensive Rating removes pace from the equation, enabling fair comparisons between fast and slow teams. At the individual level, ORtg estimates the points produced per 100 possessions a player is responsible for.

Points allowed per 100 possessions by a team or while a specific player is on the floor. Lower is better. DRtg normalizes defensive performance for pace, making it possible to compare the defensive quality of teams and lineups that play at different speeds.

A framework developed by Dean Oliver identifying the four key factors that determine basketball success: effective field goal percentage (shooting), turnover percentage (ball care), offensive rebound percentage (second chances), and free throw rate (getting to the line). Teams that win three or more of the four factors in a game win the vast majority of the time.

A visual representation of where on the court a player takes their shots and the outcome (make or miss) of each attempt. Shot charts plot field goal attempts on a court diagram, typically color-coded by shooting efficiency from each zone, revealing spatial tendencies and scoring patterns that box scores alone cannot convey.

A density-based visualization showing where a player is most and least active on the court, using color gradients to represent frequency or efficiency. Heat maps can display shooting frequency, defensive positioning, passing origin points, or general court presence, providing a rapid visual summary of spatial tendencies.

A multi-dimensional similarity score that quantifies how closely two players resemble each other across a set of statistical and physical attributes. The index uses weighted distance calculations across shooting profile, physical measurements, age, position, usage patterns, and per-possession production to identify the most statistically comparable players in the database.

A trajectory visualization plotting a player's key statistical metrics over multiple seasons to reveal improvement trends, plateaus, or regression. Development curves normalize for age, usage changes, and competition-level progression to isolate genuine skill development from contextual factors.

A probabilistic estimate of a player's range of possible outcomes over a future time horizon, typically expressed as a floor (25th percentile outcome), median (50th percentile), and ceiling (75th percentile). Projections are generated by comparing a player's current statistical profile, age, physical attributes, and development trajectory against a database of historical player archetypes.