1,261.6 It is achieved by passing for 99-yard touchdowns on each attempt.
The lowest is -731.6, which is achieved by passing for a 99-yard loss on each attempt.
For the NFL, a perfect quarterback rating is 158.3. In college football, it's 1261.6
r. wilson - wisconsin 2011
Robbert Griffin III
98.6 quarterback rating.
Tom Brady received a perfect qb rating against Miami in 2007 (158.3). Michael Vick also received a perfect qb rating in 2010 against the Redskins (also 158.3).
In 2009, Eli Manning had a 93.1 quarterback rating.
Peyton manning has had 4 perfect passer rating games. Next best is Ben Roethlisberger with 3. 2 of witch were in same year making him only quarterback to have ever done so.
As of this posting it's Michael Vick with a rating of 108.7
Tom Brady with a rating of 111.