Quarterback rating

The quarterback rating , also passer rating and (especially in the college sector) passing efficiency rating , is a statistical value that is intended to describe and compare the performance of a quarterback in terms of his passing skills . In the National Football League (NFL) this value has been calculated since 1973, in college football since 1979.

Basics

The value is calculated from various statistics:

abbreviation	English	German	meaning
ATT	Attempts	tries	Number of passes thrown
COMP	Completions	Full passports	Number of passports caught by teammates
YDS	Yards	Yards	Gaining space by passing in yards
TD	Touchdowns	Touchdowns	Number of touchdowns thrown
INT	Interceptions	Interceptions	Number of passes intercepted by opposing players

calculation

In different leagues there are different calculation methods for the quarterback rating .

NFL

The current formula was devised by a committee led by Don Smith in the early 1970s and introduced in 1973 as the official statistic in the National Football League (NFL). The highest achievable value is 158.3, the lowest 0. The average value of all quarterbacks in the 2017 season was 88.6. A score of 100 is considered a good result.

For the calculation, four individual values are first determined, which are limited to a minimum of 0 and a maximum of 2.375 after their calculation. These individual values are:

The percentage of full passes as	${\ displaystyle {\ frac {{\ frac {COMP} {ATT}} \ times 100-30} {20}}}$
The gain in space in yards per pass attempt as	${\ displaystyle \ left ({\ frac {YARDS} {ATT}} - 3 \ right) \ times {\ frac {1} {4}}}$
The touchdowns scored per pass attempt as	${\ displaystyle {\ frac {TD} {ATT}} \ times 20}$
The interceptions thrown per pass attempt	${\ displaystyle 2 {,} 375- {INT \ over ATT} \ times 25}$

The individual values are added, then divided by 6 and multiplied by 100. This gives the maximum value of

{\ displaystyle {\ frac {4 \ times 2 {,} 375} {6}} \ times 100 = 158 {,} 3}

.

Converted into game or season statistics, the respective maximum value of 2.375 means a rate of complete passes of at least 77.5%, a space gain of at least 12.5 yards per pass, a touchdown in at least 11.875% of the passes and no interception.

The best value of 158.3 was achieved more often in individual games. For an entire regular season , the best value is 122.5 and was set up by Aaron Rodgers in the 2011 season for the Green Bay Packers . However, he did not play the last game and could therefore no longer fall behind the previous record of 121.1, set by Peyton Manning in the 2004 season .

Arena Football League

The Arena Football League calculated the quarterback rating in principle like the NFL, only the weighting of the touchdowns was slightly reduced to

{\ displaystyle {\ frac {TD} {ATT}} \ times 15}

.

College football

In the NCAA area , the QB rating is determined differently and cannot be compared to the NFL. The underlying parameters are identical, but have different values due to different statistical rules, are weighted differently and are not limited to a maximum value.

The formula is:

${\ displaystyle {\ text {Passing Efficiency Rating}} = {(8.4 \ times {\ text {YDS}}) + (330 \ times {\ text {TD}}) - (200 \ times {\ text {INT} }) + (100 \ times {\ text {COMP}}) \ over {\ text {ATT}}}}$

COMP stands for complete passes, ATT for pass attempts, YARDS for net space gain, TD for touchdowns and INT for interceptions .

The weighting of the individual summands was chosen to achieve a value of 100 for an average rating. For this purpose, the performance of the college quarterbacks was statistically evaluated over a longer period and the factors were adjusted so that the value 100 resulted.

The maximum value according to this formula is 1,261.6 (each pass is caught for a 99 yard touchdown), the lower limit is −731.6 (each pass is caught for a loss of 99 yards).

The record for the highest rating in a season is held by Joe Burrow , who got 202 for Louisiana State University in 2019 . The record for the entire NCAA career is held by Tua Tagovailoa , who set a value of 199.4 for the Alabama Crimson Tide between 2017 and 2019.

GFL

In the German Football League , the calculation of the NCAA (College Football) is used.

criticism

The quarterback rating is controversial for several reasons:

The most common criticism is that the quarterback sacks are not considered. Thus, a quarterback who accepts a sack (the rate of complete passes and the number of yards per attempt does not deteriorate) instead of throwing an incomplete pass (no loss of space for the team), scores a better rating.
The second common criticism is that the quarterback's running game is not taken into account. In the case of quarterbacks who can also run very well with the ball, this performance is not statistically taken into account in the quarterback rating.
The third point of criticism is that the National Football League (NFL) and the American Football League (AFL) limit the individual factors to 2.375. This has the effect, for example, that a quarterback who makes 77.5% of his passports is rated in the same way as one who gives 90% of his passes to the man. However, this restriction becomes less important the more pass attempts of the quarterback are taken into account, as a rate of 77.5% of complete passes is achieved in individual games at best, but not over a longer period - the NFL record for one season is 74 , 4% ( Drew Brees , 2018).

In order to address the first two points, it has been suggested several times that instead of the yards per pass attempt, the yards per attempt in which the quarterback is significantly involved, for the calculation. In addition to the attempts to pass, this would also include one's own runs and sacks .

Wide receiver rating

The quarterback rating is also used to calculate the so-called wide receiver rating . Only passes to a specific wide receiver are considered here.

Web links

The calculation page of the NFL

Individual evidence

↑ Chapter 7. (PDF) North Carolina State University, archived from the original on September 26, 2016 ; accessed on September 26, 2016 (English).
↑ NFL's Passer Rating | Pro Football Hall of Fame Official Site. Retrieved November 29, 2017 .
^ College Football Stats Glossary. Retrieved September 26, 2016 .
↑ Mike Luce: The College Football Report: Waffle House Week Featuring The Halfway Halfwits. The Beachwood Reporter, accessed September 26, 2016 .
↑ Single Season Leaders and Records for Passing Efficiency Rating. Retrieved January 14, 2020 (English, minimum of 700 pass attempts).
^ Career Leaders and Records for Passing Efficiency Rating. Retrieved January 14, 2020 (English, minimum of 700 pass attempts).
↑ Thopher Doll: Stat Snip: Broncos Wide Receiver Rating. November 27, 2012, accessed March 11, 2016 .

[1] Chapter 7. (PDF) North Carolina State University, archived from the original on September 26, 2016 ; accessed on September 26, 2016 (English).

[2] NFL's Passer Rating | Pro Football Hall of Fame Official Site. Retrieved November 29, 2017 .

[3] College Football Stats Glossary. Retrieved September 26, 2016 .

[4] Mike Luce: The College Football Report: Waffle House Week Featuring The Halfway Halfwits. The Beachwood Reporter, accessed September 26, 2016 .

[5] Single Season Leaders and Records for Passing Efficiency Rating. Retrieved January 14, 2020 (English, minimum of 700 pass attempts).

[6] Career Leaders and Records for Passing Efficiency Rating. Retrieved January 14, 2020 (English, minimum of 700 pass attempts).

[7] Thopher Doll: Stat Snip: Broncos Wide Receiver Rating. November 27, 2012, accessed March 11, 2016 .