In a dominant performance, the San Francisco 49ers crushed the Denver Broncos 55-0 in Week 4 of the 2026 season. This lopsided victory not only showcased the 49ers' offensive prowess but also sent a clear message about their championship aspirations as they continue to assert their dominance in the league. Brock Purdy was the star of the show, throwing for 373 yards and three touchdowns, leading a well-oiled offensive machine. Christian McCaffrey added a solid rushing performance with 97 yards, while Deebo Samuel Sr. shined in the passing game, racking up 165 receiving yards. The 49ers' offensive firepower overwhelmed the Broncos, who struggled to find an answer all game. Defensively, the 49ers were equally impressive, with Dre Greenlaw snagging an interception and the unit as a whole stifling any hopes of a Denver comeback. The turning point came early in the second quarter when Purdy connected with Samuel for a long touchdown, shifting the momentum firmly in San Francisco's favor. The Broncos' inability to respond defensively sealed their fate, as the 49ers continued to build on their lead with relentless pressure and opportunistic play.