49ers QB Colin Kaepernick’s QBR this season with TE Vernon Davis on the field is 81.7. Without him it’s 13.1. Kaepernick has completed 61.1 percent of his passes while Davis is on the field. His rate dips to 43.1 percent when Davis is off the field.
This disparity has been consistent throughout Kaepernick’s brief NFL tenure. His career QBR with Davis is 77.7; without him it’s 16.1. His completion percentage with Davis is 62.4; without him it drops to 47.1. (Thanks to ESPN Stats & Information for the figures.)
It appears that Davis is on track to play in Week 11.