Patrick Mahomes has a passer rating of 107.1 in his career.

mahomes passer rating all-time
NAMEGPRATECMPATTPCTYDSAVGYDS/GTDTD%INTINT%SCKSCKY
Patrick MahomesPatrick Mahomes53107.11,3011,96466.216,2348.3306.31326.7331.781527
StatMuse has season-level data for passer rating going back to the 1932 season.