Sam Darnold steered Seattle’s offense to an 82.6 PFF grade, the week's top Seahawk mark, defying San Francisco’s surge. He took what the Niners gave and played cleanly until a late fumble sealed the loss. Cooper Kupp’s Seahawks debut was blunt with two catches and a drop, dragging Seattle’s overall grade down. On defense, Josh Jobe and Ernest Jones posted the top Seahawk grades, while Ty Okada and Riq Woolen struggled in coverage as Purdy lit Seattle up with two interceptions baited by Jobe and Jones. Ricky Pearsall's late-game impact and Kittle’s TD highlighted SF’s edge in key moments. Seattle’s Week 1 showed a surprising offense floor with high-leverage playmaking, but execution and turnovers still defined the result.