See PFF's "About" page for more information on their grading system.
Best: A.J. Green (+2.9), Kevin Zeitler (+2.8)
Other good grades: Andy Dalton (+1.8), Jeff Faine (+1.1), Orson Charles (+0.6)
Worst: BenJarvus Green-Ellis (-2.3),
Other bad grades: Andre Smith (-1.2), Chris Pressley (-0.9), Armon Binns (-0.9)
Best: Geno Atkins (+9.7)
Other good grades: Terence Newman (+4.2), Reggie Nelson (+2.2), Domata Peko (+1.6), Chris Crocker (+1.4), Carlos Dunlap (+1.3), Adam Jones (+1.2), Vontaze Burfict (+0.8)
Worst: Rey Maualuga (-1.7)
Other bad grades: Michael Johnson (-1.2), Robert Geathers (-1.1), Wallace Gilberry (-0.9)
Other performances of note: Aside from Zeitler, it was not a good day for run blocking- Whitworth, Boling, Andre, Pressley, Gresham, and Roland all had run block grades less than -0.9. For all the flack he was getting at the start of the season, Taylor Mays (+0.6) held his own again in 57 snaps and is +1.3 overall on the year.