Brock Purdy vs Justin Fields: Who Should You Start?
Deciding between Brock Purdy and Justin Fields is a common lineup dilemma for fantasy managers. The San Francisco 49ers quarterback put up 20.8 PPG in 2025 over 9 games; Justin Fields of the Kansas City Chiefs averaged 16.0 in 9. A 4.8-point margin that could shift on any given week.
The per-game difference of 4.8 points favors Brock Purdy, though savvy managers know that gap can shrink or widen depending on the weekly slate. Defensive matchup, recent scoring trends, and health status all shift the calculus from one quarterback to the other.
Both lean on arm talent and offensive scheme as traditional pocket passers. Brock Purdy threw for 2167 yards and 20 touchdowns, while Justin Fields posted 1259 yards and 7 scores. Volume, red zone efficiency, and game script are the key week-to-week differentiators when neither carries rushing upside.
Brock Purdy has his bye in Week 9, and Justin Fields rests in Week 6. Managers rostering both need waiver wire depth at quarterback for those two weeks, and that is exactly the kind of planning DraftCall's matchup engine surfaces automatically so you are not scrambling on a Sunday morning.
