Passer rating

From Wikipedia, the free encyclopedia

(Redirected from Pass rating)
Jump to: navigation, search

Passer rating (known as passing efficiency or pass efficiency in NCAA football) is a measure of the performance of quarterbacks or any other passers in American football and Canadian football. There are at least two formulae currently in use: one officially used by the National Football League and the Canadian Football League, and one used in college football. Passer rating is calculated using each quarterback's completion percentage, passing yardage, touchdowns and interceptions.

Contents

The NFL's current passer rating (also known as quarterback rating) system was conceived by Pro Football Hall of Fame's retired vice president Don Smith in 1973. The system is a sliding scale design, where outstanding performances meet diminishing returns faster than sub-par ones. The best passer rating that a quarterback can obtain is 158.3, while the worst is zero. The architects of the passer rating had 66²⁄3 in mind as the "average" score, but as styles of play have changed, so have average passer ratings. The cumulative league-wide average passer rating for the years 2000 through 2003, all inclusive, was 78.9 (the figure is typically rounded to the nearest 1/10 of a point); however in 2004 the league average was 82.8, the highest ever recorded. Passer rating has been applied all seasons.

Passer rating is determined by four statistical components, each of which is computed as a number between zero and 2.375. The benchmarks for these statistics are based on historical averages. If any of the components are less than zero, they are reckoned as zero; if any are over 2.375, they are reckoned as 2.375.

  • The component for completion percentage, C, is calculated as: {{COMP \over ATT} \times 100 - 30 \over 20}
  • The component for yards per attempt, Y, is calculated as: \left( { YDS \over ATT } - 3 \right) \times { 1 \over 4 }
  • The component for touchdowns per attempt, T, is calculated as: { TD \over ATT }\times 20
  • The component for interceptions per attempt, I, is calculated as: 2.375 - \left( { INT \over ATT } \times 25 \right)

The four components are then added, divided by 6, and multiplied by 100. Thus, the formula for passer rating can be given as:

{(\max(\min(C,2.375),0) + \max(\min(Y,2.375),0) + \max(\min(T,2.375),0) + \max(\min(I,2.375),0) \over 6}\times 100.

The Canadian Football League uses the same formula as the NFL. [1]

Since each component of passer rating can be at most 2.375, the maximum passer rating is

{4 \times 2.375 \over 6}\times 100 = 158.3.

A perfect passer rating therefore comprises:

  • a completion percentage of at least 77.5%: 2.375 \times 20 + 30 = 77.5
  • at least 12.5 yards per attempt: 2.375 \times 4 + 3 = 12.5
  • at least .11875 touchdowns per attempt, or at most 8.42 attempts per touchdown: {2.375 \over 20} = .11875 and
  • zero interceptions: {ATT \times (2.375 - 2.375) \over 25} = 0

Passer rating, known formerly in college football as passing efficiency or pass efficiency, is based on player performances between 1965 and 1979. The NCAA passing efficiency formula is:

  • The component for completion percentage, C, is calculated as: {COMP \over ATT}\times 100
  • The component for yards per attempt, Y, is calculated as: {YDS \over ATT}\times 8.4
  • The component for touchdowns per attempt, T, is calculated as: {TD \over ATT }\times 330
  • The component for interceptions per attempt, I, is calculated as: { INT \over ATT }\times -200

The four components are then added. Thus, the formula for passer rating can be given as: (C + Y + T + I)

The NCAA passer rating has an upper limit of 1,261.6 and a lower limit of -200. The upper limit value results if every pass thrown is a 99 yard touchdown and the lower limit if every pass thrown is intercepted. [2]

In CFL football Dave Dickenson of the BC Lions has produced some of the highest professional passing efficiency numbers. Although limited by injuries in 2005, he set two regular season records with a 74 percent completion percentage and an efficiency rating of 118.8. His numbers for the year were: 253/342, 3338 yards, 74% completion rate, 21 TDs, 5 INTs. He opened the 2006 season by setting a CFL single-game passing efficiency rating record of 150.61. He capped 3 of the 4 criteria for passing efficiency and was 28/34, 362 yards, 5 TDs, 0 INTs.

Steve Young currently holds the NFL record for the highest career passer rating for any player with at least 1500 attempts with a mark of 96.8. The highest passer rating for a complete season is 121.1 set by Peyton Manning in 2004. Also in 2004, rookie Ben Roethlisberger posted a mark of 98.1, setting a new record for first-year passers.

In NCAA Football Bowl Subdivision (formerly division I-A), the career record for passing efficiency is held by Ryan Dinwiddie of Boise State, who had a career mark of 168.9 between 2000 and 2003 . The single-season record belongs to Colt Brennan of Hawaii, who amassed a passer rating of 186.0 over the 2006 season, while the freshman record belongs to Michael Vick of Virginia Tech, whose rating during the 1999 season was 180.4.[3]. Current NCAA Football Bowl Subdivision passing efficiency ratings can be found here.

Retrieved from "http://en.wikipedia.org/wiki/Passer_rating"
Advanced Search
Included Web Search Engines


Safe Search

close

Top Matching Results

Occasionally Search.com will highlight specialized results that are based on the context of your query. Examples of specialized results include specific links to news, images, or video.

Top Matching Results may highlight information from other Search.com pages, content from the CNET Network of sites, or third party content. The listings are based purely on relevance. Search.com does not receive payment for listings in this section but our partners that provide this data may get paid for listing these products.

Sponsored Links

This section contains paid listings which have been purchased by companies that want to have their sites appear for specific search terms and related content. These listings are administered, sorted and maintained by a third party and are not endorsed by Search.com.

Search Results

Search.com sends your search query to several search engines at one time and integrates the results into one list which has been sorted by relevance using Search.com's proprietary algorithm. You can customize the list of search engines included in your metasearch from the preferences.

The search engines that are used in your metasearch may allow companies to pay to have their Web sites included within the results. To view the Paid Inclusion policy for a specific search engine, please visit their Web site. Search.com does not accept payment or share revenue with any search engine partner for listings in this section.