Week 1 QBR Leaders

Total QBR is a quarterback rating that takes into account all of a quarterback's contributions (passing, rushing, sacks, fumbles, penalties) to his team's scoring and winning and summarizes them into one number on a 0-100 scale, on which 50 is average.

For a game, the number can be interpreted as a percentile, so a score of 80 means a quarterback's performance was better than 80 percent of all quarterbacks' games. For more about the methodology and statistics behind the Total QBR, see here.

Reigning NFL MVP (and 2010 regular-season Total QBR leader) Tom Brady had a stellar performance on "Monday Night Football" in Miami, throwing for 517 yards and four touchdowns on his way to a Total QBR of 88.6. While that wasn't enough to unseat Aaron Rodgers for the highest Total QBR in Week 1 (91.1), Brady's efficiency over so many plays resulted in his finishing with 13.2 total clutch-weighted EPA (expected points added), by far the highest total of the week.

Lost in Brady's greatness was a solid performance by Dolphins QB Chad Henne, who put up a Total QBR of 70.7 after finishing 27th in the NFL with a 41.4 rating last season. Monday's later game did not produce anywhere near the same quality of QB play, with both Oakland's Jason Campbell and Denver's Kyle Orton finishing with ratings that placed them toward the bottom of the Week 1 rankings.

Below is the full breakdown of Total QBR and its component statistics for all 33 NFL QBs with a minimum of 10 action plays in Week 1.

Results shown here may differ from those published earlier on ESPN.com. These are due to small errors in evaluating home/road differences that were corrected prior to Week 4. ESPN regrets the error.