Passer rating (Quarterback rating)

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Passer rating
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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.

A perfect passer rating in the NFL is 158.3. A perfect passing efficiency in college football is 1261.6.

Contents ]
1 NCAA
2 NFL
3 Records
3.1 NFL
3.2 NCAA
4 See also
5 References
6 External links

NCAA
Passer rating, known formally in college football as passing efficiency or pass efficiency, is based on player performances. The NCAA passing efficiency formula is far simpler[1] than the NFL formula, as it lacks limits on the four components:

The NCAA passer rating has an upper limit of 1,261.6 (every attempt is a 99-yard completion for touchdown), and a lower limit of -731.6 (every attempt is completed, but results in a 99-yard loss). A passer who throws only interceptions will have a -200 rating, as would a passer who only throws completed passes losing an average of 35.714 yards.

NFL
The calculation of the NFL quarterback rating involves more steps than the NCAA formula. In order to establish a maximum value for an NFL player's passer rating, a separate calculation needs to be completed involving each of the following four categories: Completion Percentage, Average Yards Per Attempt, Percentage of Touchdown Passes, and Percentage of Interceptions. If the result in any category is less than 0, the given result should be 0. If the result in any category is greater than 2.375, the given result should be 2.375. This makes the maximum possible quarterback rating for the NFL 158.3. A perfect rating requires at least a 77.5% completion rate, at least 12.5 yards per attempt, a touchdown on at least 11.875% of attempts, and no interceptions.

Then use the above calculations to complete the passer rating:

Records

NFL
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 record for first-year passers. There have been 59 quarterbacks to complete a game with a perfect passer rating of 158.3 (and only six to have accomplished this more than once). The most recent quarterback to accomplish this feat is Drew Brees of the New Orleans Saints (on November 30, 2009 against the New England Patriots).

NCAA
In NCAA Football Bowl Subdivision (formerly division I-A), the career record for passing efficiency is held by Tim Tebow of Florida Gators, who had a career mark of 170.8 between 2006 and 2009. 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. Current NCAA Football Bowl Subdivision passing efficiency ratings can be found here.

See also
List of NFL quarterbacks who have posted a perfect passer rating
List of NFL quarterbacks who have posted a passer rating of zero
NFL career passer rating leaders

References

External links
NFL.com QB Rating Page
Online QB Rating Calculator. NFL formula.
Online passer rating calculator for NFL/CFL, NCAA and AFL formulas
A look at and breakdown of the NFL Passer Rating
All-Time Top NFL Passer Ratings List
QB Rating Calculator
Adjustable NFL passer rating calculator and database. Stats from 1932 - present.
New York Times - The N.F.L.'s Passer Rating, Arcane and Misunderstood - January 14, 2004

Gridiron football concepts

Codes American • Canadian (US-Canadian comparison) • Arena • Indoor • 9-man • 8-man • 6-man • Flag • Touch • Street/Backyard

Levels of play High school • College • Sprint • Women's • Professional

Field End zone • Goal line • Line of scrimmage • Neutral zone • Field goal range • Out of bounds • Sidelines

Equipment Football (ball) • Helmet • Winged helmet • Shoulder pads • Uniform number • Penalty flag

Positions Offense: Linemen • Quarterback • Running back • Halfback • Fullback • H-back • Wide receiver • Tight end • Slotback • Guard • Offensive tackle • Center • Eligible receiver
Defense: Linemen • Linebacker • Defensive tackle • Defensive end • Nose tackle • Defensive back • Cornerback • Safety • Nickelback • Dimeback
Special Teams: Placekicker • Punter • Kickoff specialist • Long snapper • Holder • Punt returner • Kickoff returner • Gunner
Other: Utility player • Triple threat man

Play types Offense: Rush • Pass • Incomplete pass • Lateral • Bootleg play • Draw play • End-around • Flea flicker • Flexbone formation • Fourth down conversion • Hail Mary pass • Halfback option play • Hook and lateral • Kneel • Motion • Hurry-up offense • Option run • Option offense • Play action pass • Quarterback keeper • Quarterback sneak • Quick kick • Reverse • Scramble • Screen pass • Spike • Statue of Liberty • Sweep • Trick play
Defense: Tackle • Blitz • Rush • Sack • Shooting the gap • Stunt • Zone blitz
Special Teams: Kickoff • Kickoff return • Punt • Punt return • Drop kick • Fair catch • Fair catch kick • Icing the kicker • Onside kick • Squib kick • Try

Scoring Touchdown • Extra point • Two-point conversion • Field goal • Safety • Single (rouge)

Penalties Blocking below the waist • Block in the back • Chop block • Clipping • Delay of game • Encroachment • Equipment violations • Face mask • False start • Horse-collar tackle • Illegal contact • Illegal formation • Illegal forward kick • Illegal forward pass • Illegal hands to the face • Illegal motion • Illegal participation • Illegal shift • Illegal substitution • Illegal touching • Illegal touching of a free kick • Illegal use of hands • Ineligible receiver downfield • Intentional grounding • Holding • Leaping • Neutral Zone Infraction • Offside • Palpably unfair act • Pass interference • Personal Foul • Roughing the kicker • Roughing the passer • Roughing the snapper • Sideline infraction • Spearing • Tripping • Unsportsmanlike conduct

Turnovers Fumble • Interception • Muffed punt • Turnover on downs

Downs First down • Three-and-out • Fourth down conversion

Play clock Timeout • Two-minute warning • Running out the clock

Statistics Passer rating • Reception • Return yards • Total offense • Yards from scrimmage

Celebrations Touchdown celebration • Gatorade shower

Miscellaneous Snap • Dead ball • Touchback • Instant replay • Coffin corner • Glossary of American football • Glossary of Canadian football • Rules • Rules in American football

Retrieved from "http://en.wikipedia.org/wiki/Passer_rating"

Categories: American football terminology | Canadian football terminology

This page was last modified on 7 February 2010 at 23:10.