The San Francisco 49ers topped the Seattle Seahawks with a decisive 34-14 victory in Week 18 of the 2027 season. With this win, the 49ers solidified their playoff positioning, putting themselves in a strong position heading into the postseason. Brock Purdy was instrumental in the win, throwing for 263 yards and leading the offense with precision. Jalen Milroe found the end zone twice for the Seahawks, but it wasn't enough to keep pace with San Francisco’s offensive firepower. Ashton Jeanty added a solid 94 yards on the ground, while Kenneth Walker highlighted Seattle's effort with 105 receiving yards. Defensively, the 49ers were relentless, with Dre Greenlaw recording two sacks that disrupted Seattle's rhythm throughout the game. Kamari Ramsey's interception late in the third quarter shifted momentum decisively in San Francisco's favor, halting a potential Seahawks comeback. With a combination of strong defensive plays and efficient offense, the 49ers held off Seattle to secure a convincing win.