Case Keenum has a passer rating of 85.2 in his career.

case keenum all-time passer rating
NAMEGPRATECMPATTPCTYDSAVGYDS/GTDTD%INTINT%SCKSCKY
Case KeenumCase Keenum7285.21,3312,13762.314,6196.8203.0763.6472.2121905
StatMuse has season-level data for passer rating going back to the 1932 season.