In a closely contested matchup, the San Francisco 49ers topped the Seattle Seahawks 23-17 in Week 12 of the 2026 season. With playoff implications on the line, the 49ers secured a crucial victory, solidifying their position in the standings. Fernando Mendoza led the charge for San Francisco, throwing for 184 yards and two touchdowns, showcasing his ability to make plays when it mattered most. Saquon Barkley was a force on the ground, racking up 137 rushing yards and providing balance to the 49ers' offensive attack. A.J. Brown contributed significantly in the passing game, adding 68 receiving yards to help keep the chains moving. Defensively, the 49ers made key stops at critical moments, with Maxx Crosby recording a sack that disrupted Seattle's offensive rhythm. Foyesade Oluokun's interception was pivotal, shifting momentum back to San Francisco late in the game. The turning point came in the fourth quarter when the 49ers' defense held the Seahawks to a three-and-out, allowing San Francisco to maintain their lead and secure the win.