Purdy's 4-0 stat club vs. Seattle's NFL-best defense — SkimNews
Get the Sports newsletter
Daily sports — scores, transfers, the storylines from the leagues you actually follow. Free.
- Brock Purdy is the only QB in NFL history to start 4-0 with one or fewer sacks, fumbles, or interceptions combined, leading the NFL in passer rating (126.2), EPA per dropback (0.53), and co-leading in passing TDs (11) — his 0.53 EPA trails only Tom Brady's 0.59 through four games in the 21st century.
- The Seahawks' "Dark Side" defense under Mike Macdonald leads the NFL in yards per play allowed (4.0), fewest total yards per game (246.8), fewest passing yards per game (144.8), and is tied for the most interceptions (6), on pace to become the first team since 2013-2014 to lead the league in total defense in consecutive seasons.
- Seattle's front four generates the NFL's second-highest early-down pressure rate (44.2%) while blitzing at the second-lowest rate (17.9%) on early downs, directly targeting Purdy's NFL-low 24.7% pressure rate on early-down drop-backs.
- The 49ers' offense has the lowest rate of plays losing yards (2.2%) by any team through four games of a season in the 21st century, with Purdy posting the lowest negative-play rate (0.8%) by any QB through four games this century.
- Trent Williams has allowed 12 pressures (no sacks) on 143 pass-blocking snaps across four matchups vs. Seattle since 2024 — half came from Boye Mafe, who left for Cincinnati in free agency, with DeMarcus Lawrence the only current Seattle defender with multiple pressures against Williams in that span.
- Seattle won the last two meetings by a combined 54-9, including a 13-3 win in Week 18 2025 (San Francisco's fewest points under Kyle Shanahan) and a 41-6 NFC divisional round blowout in January that tied the most lopsided Seahawks playoff win in team history.
Why it matters: The 49ers' 4-0 start and **Purdy's** historically clean stat sheet face their toughest test against a Seattle defense that has outscored San Francisco 54-9 across the last two meetings. A loss pushes the 49ers behind in the NFC West pecking order and validates the 'Dark Side' as the conference's front-runner.
Ask SkimNews
