Brock Purdy vs Marcus Mariota: Who Should You Start?
The numbers tell a clear story here. Brock Purdy put up 20.8 fantasy points per game for the San Francisco 49ers in 2025, while Marcus Mariota managed 12.0 across 11 games with the Washington Commanders. A 8.8-point weekly edge is substantial at the quarterback position.
The per-game difference of 8.8 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 Marcus Mariota posted 1695 yards and 10 scores. Volume, red zone efficiency, and game script are the key week-to-week differentiators when neither carries rushing upside.
Bye weeks matter for roster construction: Brock Purdy sits Week 9 while Marcus Mariota is off Week 14. If you are deciding between the two as a season-long roster hold, the staggered byes actually work in your favor.
