Brock Purdy vs Mac Jones: 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 Mac Jones managed 12.4 across 11 games with the San Francisco 49ers. A 8.4-point weekly edge is substantial at the quarterback position.
That 8.4-point weekly advantage for Brock Purdy is meaningful but not automatic. Fantasy football is a week-to-week sport, and the answer to "who should I start" often changes based on opponent, recent form, and game environment. Season averages set the baseline; weekly context makes the call.
Both lean on arm talent and offensive scheme as traditional pocket passers. Brock Purdy threw for 2167 yards and 20 touchdowns, while Mac Jones posted 2151 yards and 13 scores. Volume, red zone efficiency, and game script are the key week-to-week differentiators when neither carries rushing upside.
Both share a Week 9 bye, which matters for roster construction. If you are stacking quarterbacks this deep on your bench, plan your replacement quarterback early.
