The San Francisco 49ers narrowly defeated the Seattle Seahawks 21-16 in a tightly contested Week 3 matchup of the 2027 season. With both teams looking to assert themselves early in the season, the stakes were high, and the 49ers emerged victorious, improving their record as they continue their push for playoff contention. Brock Purdy led the 49ers' offense, throwing for 175 yards and two touchdowns, showcasing his efficiency in key moments. Christian McCaffrey was the standout on the ground, racking up 133 rushing yards and consistently moving the chains for San Francisco. On the other side, Sam Darnold put together a solid performance for the Seahawks with 266 passing yards, but it wasn't enough to secure the win. Defensively, the Seahawks struggled to contain the 49ers' balanced attack, despite Ernest Jones IV's impressive 10 tackles. The turning point came late in the fourth quarter when the 49ers' defense held strong, forcing a critical turnover on downs that allowed them to run out the clock and secure the win. The combination of timely offensive execution and defensive resilience ultimately paved the way for San Francisco's victory.