Brock Purdy's historic start: 89.6 QBR, 10 TDs, zero sacks through four games
Brock Purdy's 89.6 Total QBR through four weeks is the highest mark from any quarterback since Aaron Rodgers in 2020. He is also the first QB with 10-plus touchdown passes and zero sacks taken in the first four games since Dan Marino in 1984
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Brock Purdy continues to build an early MVP-caliber case in 2026, stacking numbers that rival some of the best four-game starts in league history. Through his first four outings, the 49ers quarterback has posted an 89.6 Total QBR, the highest by any passer since Aaron Rodgers put up a 90.6 mark on the way to winning NFL MVP in 2020.
Adam Schefter (@AdamSchefter): Brock Purdy's 89.6 Total QBR is the highest by any quarterback through four games since 2020, when NFL MVP Aaron Rodgers had a 90.6 Total QBR. Purdy is the first QB with at least 10 touchdown passes and zero sacks taken in the first four games of a season since Dan Marino in 1984, the year he won NFL MVP.
Beyond the composite QBR, Purdy's efficiency numbers are remarkable in isolation. He has thrown 10 touchdown passes with zero interceptions returned for scores through the first month, and has not been sacked once — a combination no quarterback has achieved through four games since Dan Marino in 1984, the year he won league MVP.
The 49ers are 3-1 and sit atop the NFC West, with Purdy's clean pocket presence and quick release buying San Francisco's offense the kind of stability that typically produces a deep playoff run. Through four games his passer rating sits north of 110 and he has completed 68 percent of his throws while facing pressure on roughly a quarter of his drop-backs.
San Francisco's Week 5 opponent is Seattle at-home on Sunday afternoon. The Seahawks defense lives on generating interior pressure through safety blitzes and simulated pressures, which will test whether Purdy's zero-sack streak can hold against a more creative rush scheme.