Carson Palmer
Passer rating: 112.1
QBR: 96.0
Analysis: Palmer produced the most accurate game in his career (minimum five attempts) and the best for an NFC quarterback this season (84.9 percent, minimum 25 attempts). Included in his 27-for-32 day were completions on all 12 targets of receiver Larry Fitzgerald. He targeted most of his passes (26) over the middle (defined as between the numbers), and all 32 passes came from inside the pocket. He was sacked once and put under duress only three times in 33
Russell Wilson
Passer rating: 81.9
QBR: 48.1
Briefly: Wilson struggled downfield against the San Francisco 49ers, managing only two completions (in eight attempts) on passes that traveled more than 10 yards in the air. Both were caught by tight end Luke Wilson, including one for a touchdown.
Matt Schaub
Passer rating: 76.5
QBR: 45.3
Briefly: Schaub targeted receiver Andre Johnson 11 times after replacing Case Keenum in the third quarter. The pair connected for eight completions after Keenum hit Johnson on five of 10 passes earlier. Four of those passes were judged on video review to be off-target (poor throws by Keenum).
Colin Kaepernick
Passer rating: 67.5
QBR: 41.5
Briefly: Kaepernick barely completed 50 percent of his passes against the Seahawks, and coach Jim Harbaugh's careful play calling in scoring position suggested middling trust in his decision-making against an elite defense. But his 8-yard run on third-and-7 late in the fourth quarter was one of the most important plays of the game.
Kellen Clemens
Passer rating: 48.5
QBR: 17.5
Briefly: Two interceptions, four sacks and a fumble (not lost) led to Clemens' third game this season (in six starts) with a QBR under 20.
Matthew Stafford
Passer rating: 60.1
QBR: 11.6
Briefly: In snowy conditions, Stafford was credited with five fumbles. He lost one. But he wasn't the only Lions player with slippery hands. His receivers dropped four passes, about 16 percent of his total attempts. Also: In the crucial fourth quarter, Stafford completed only one of eight pass attempts.
Robert Griffin III
Passer rating: 63.6
QBR: 6.7
Briefly: Griffin completed twice as many passes that traveled 15 yards or more in the air (four) than passes that traveled five or fewer (two). Go figure.
