Only four QBs have ever had passing DVOA of 50% in qualifying season.

Manning 2004
Brady 2007
Marino 1984
Manning 2006

Brock Purdy's 2023 is at 48.7% now, fifth all-time.

On the other hand, the No. 1 QB in DVOA last year was Jimmy Garoppolo.

— Aaron Schatz 🏈 (@ASchatzNFL) December 4, 2023