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Total Quarterback Rating
Total Quarterback Rating (abbreviated as Total QBR or simply QBR) is a proprietary statistic created by ESPN Inc. in 2011 to measure the performance of quarterbacks in American football. It was created to be a more meaningful alternative to the passer rating but has been met with criticism amongst fans and commentators alike.
==History and development==
Total QBR was developed by a team at ESPN Stats & Information Group including Jeff Bennett, Dean Oliver, Alok Pattani, Albert Larcada, and Menlo College professor Ben Alamar. The group also received input from ESPN analysts Trent Dilfer, Jon Gruden, and Ron Jaworski. Total QBR was developed based on analysis of 60,000 NFL plays between 2008-2010, and was unveiled on August 5, 2011.〔http://espnmediazone.com/us/press-releases/2011/08/espn-introduces-the-total-quarterback-rating/〕 The formula was modified in 2012 and again in 2013.〔http://espn.go.com/nfl/story/_/id/8326553/nfl-total-qbr-gets-minor-modifications〕〔http://espn.go.com/nfl/story/_/id/9634173/nfl-total-qbr-updates-2013〕
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