What Does Plus Minus Mean in Basketball?

By Emma Wilson · May 12, 2029

In basketball, the plus-minus statistic (often denoted as +\/-) measures a player's impact on the game by tracking the point differential when they are on the court. A positive number means their team outscored the opponent while they played; a negative value indicates the opposite.

Understanding Plus-Minus in Basketball

The plus-minus statistic provides insight into how much a player contributes to their team's scoring margin. Unlike traditional stats such as points or rebounds, plus-minus evaluates overall performance in context—accounting for both offensive and defensive contributions during actual gameplay.

What Does a High Plus-Minus Indicate?

A high positive plus-minus suggests that a player is frequently on the court during successful stretches of play.
It often correlates with strong two-way performance, smart decision-making, and good team chemistry.
However, it can be influenced by teammates' quality and strength of schedule.

Limitations of Raw Plus-Minus

Raw plus-minus has several drawbacks because it doesn't account for sample size or competition level. For example:

Players on dominant teams may have inflated numbers even if they aren’t stars.
Role players who share the floor with elite scorers might benefit from their teammates’ performances.
Short playing time can lead to misleadingly high or low values.

Advanced Plus-Minus Metrics

To address these issues, analysts use adjusted versions like Adjusted Plus-Minus (APM) and Regularized Adjusted Plus-Minus (RAPM), which control for lineup combinations and opponent strength using regression models.

Common Advanced Statistics Based on Plus-Minus

RAPM: Uses statistical regularization to stabilize estimates over small samples.
Player Impact Estimate (PIE): Combines plus-minus with individual stats for a broader evaluation.
Net Rating: Often used in box scores, showing point differential per 100 possessions.

Player	Team (2023-24)	Minutes Played	Plus-Minus	Net Rating
Stephen Curry	GSW	2,599	+487	+8.3
Joel Embiid	PHI	2,169	+312	+6.1
Giannis Antetokounmpo	MIL	2,531	+401	+7.4
Luka Dončić	DAL	2,701	+198	+3.9
Shai Gilgeous-Alexander	OKC	2,758	+512	+9.2

Table data source:NBA Stats, Basketball Reference

The data shows that Shai Gilgeous-Alexander led among top players with a +512 raw plus-minus in the 2023–24 season, reflecting Oklahoma City’s dominance during his minutes. Despite fewer total minutes, Stephen Curry and Giannis maintained high cumulative plus-minus due to Golden State and Milwaukee’s strong net ratings when they were on the floor. Net rating normalizes this metric per 100 possessions, offering a fairer comparison across different workloads.

How Teams Use Plus-Minus Data

Coaches and front offices rely on plus-minus trends to make strategic decisions:

Evaluating lineup efficiency and identifying optimal five-man units.
Detecting underperforming starters despite solid box score stats.
Informing trade and rotation decisions based on real-time impact metrics.

Common Questions About Plus-Minus in Basketball

What does a +5 plus-minus mean in a single game?

A +5 means that a player’s team scored 5 more points than the opponent while they were on the court during that game. It reflects positive contribution but should be interpreted alongside context like competition level and role.

Is plus-minus a reliable stat for evaluating players?

Raw plus-minus alone isn't fully reliable due to external factors like teammate quality. However, advanced forms like RAPM provide more accurate assessments by adjusting for those variables.

Can a bench player have a better plus-minus than a starter?

Yes. Bench players often enter during high-scoring runs or against weaker lineups, leading to favorable differentials. This phenomenon is known as "bench boost" and highlights the importance of context.

Does plus-minus count during garbage time?

Yes, all points scored while a player is on the court count toward their plus-minus—even in blowout games. That’s why analysts often exclude late-game minutes in close-score scenarios for cleaner evaluations.

Who typically has the highest plus-minus in the NBA?

Players on top-performing teams with high minute totals—like Nikola Jokić, Stephen Curry, or Jayson Tatum—often rank highest. However, role players on dominant squads (e.g., Draymond Green) can also post elite numbers due to team success.