Glossary

An aggregate of many different plus minus metrics. Variables are converted to the same scale, combined, divided by the number of variables, then converted to the MYRPM scale.

2 parts spacing + 5 parts padded shooting percentages, blended 75/25 with a player's career spacing rating, converted to a 1–100 scale.

An aggregate of many different plus minus metrics. Variables are converted to the same scale, combined, divided by the number of variables, then converted to the MYRPM scale.

Formula by Ben Taylor of Backpicks.com.

A per 100 estimate of the number of open shots created for teammates. Formula via Ben Taylor of Backpicks.com.

An estimate of passing quality, converted to a 1–10 scale. Inspired by the version created by Ben Taylor of Backpicks.com.

Converted to a 1–10 scale. Inspired by the version created by Ben Taylor of Backpicks.com.

A measure of shooting quality that accounts for both attempts and accuracy.

Shooting quality weighted toward attempts, with EFG% representing the league average for that season.

Assesses the efficiency of a team's shot selection and execution relative to league averages, focusing on shot locations known to be more efficient historically (rim, mid-range, three-point line). Full explanation here.

The defensive counterpart to PTS_GAINED — assesses the efficiency of an opponent's shot selection and execution relative to league averages across the same shooting zones.

Shooting efficiency that accounts for the added value of three-pointers.

Shooting efficiency that accounts for three-pointers and free throws.

Percentage of a player's shot attempts that are three-pointers.

Number of free throw attempts per field goal attempt.

Percentage of available rebounds a player corrals while on the floor.

Percentage of teammate field goals a player assists while on the floor.

Percentage of opponent possessions that end with a steal by the player while on the floor.

Percentage of opponent two-point attempts the player blocks while on the floor.

Number of turnovers a player commits per 100 plays.

Percentage of plays a player is involved in while on the floor.

Estimated number of wins a player contributes over the season.

Estimated wins contributed by the player per 48 minutes played.

Estimate of points a player contributes above league average per 100 possessions, based on box score stats.

Box score estimate of points per 100 team possessions contributed above a replacement-level player, translated to an average team and prorated to an 82-game season.

Number of shots within 3 feet of the basket that a player defends per game.

The percentage at which opposing players shoot within three feet against the defending player.

The percentage at which opposing players shoot within three feet against all other players — used as a baseline comparison.

The difference between what opponents shoot at the rim against the player versus all other defenders.

Number of deflections per 36 minutes.

Number of times a player touches the ball per game.

Via BBall Index.

A machine learning-driven box-score projection system that can also generate plus-minus projections similar to RPM, PIPM, etc. Via Kostya Medvedovsky.

Via Ryan Davis.

Via Ryan Davis.

Via Ryan Davis.

Measures defensive versatility by calculating the percentage of time a player guarded each position, squaring those percentages, summing them, and taking the square root. A lower raw rating indicates a more versatile defender. Converted to a 0–100 scale where 100 = most versatile. Via Nylon Calculus (Krishna Narsu & Patrick Miller).

Via FiveThirtyEight.

How often a player assists relative to their overall usage. Via Cleaning the Glass.