Answered February 25th, 2020

Since 1991, Andy Dalton has the lowest passer rating by a quarterback in a game with more than 30 passing attempts, with a 2.0 rating against the Browns on November 6, 2014.

worst qb rating in a game won by a qb that started after 1990 with more than 30 attempts
Interpreted as:
worst qb rating in a regular-season game won by a qb that started after 1990 with more than 30 passing attempts

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