What is qb rating

Overview

The QB rating, or quarterback passer rating, is a fundamental statistical tool used in American football to measure a quarterback's effectiveness and performance. Developed to provide a comprehensive evaluation of passing performance, the rating combines multiple aspects of a QB's game into a single metric.

How It's Calculated

The NFL passer rating uses a specific mathematical formula that evaluates four key components: completion percentage (how many passes were completed), passing yards per attempt (average distance of completed passes), touchdown percentage (proportion of touchdowns to attempts), and interception percentage (proportion of interceptions to attempts). Each component is assigned a statistical value, and these are combined using league-specific coefficients to produce the final rating.

Understanding the Scale

The passer rating scale typically ranges from 0 to 158.3. A rating of 100 or above is considered very good, indicating the quarterback is performing at a high level. Ratings between 80-100 are average to above-average, while ratings below 80 suggest below-average performance. The highest possible rating of 158.3 represents perfect performance according to the formula's criteria.

Historical Significance

Since its introduction, the QB rating has become the standard measure for evaluating quarterback performance across the NFL. It allows fans, analysts, and teams to compare quarterbacks across different eras and seasons. However, critics note that the rating doesn't account for factors like pressure, defense, quality of receivers, and clutch performance.

Modern Usage

Today, QB rating remains widely used in sports media and team evaluations, though advanced metrics like EPA (Expected Points Added) and QBR (Total Quarterback Rating) have emerged to provide more comprehensive analysis of quarterback performance.