NFL QB rankings, Week 4: Brock Purdy climbs to No. 1; Kirk Cousins enters top 10

In Nick Shook's NFL quarterback rankings heading into Week 4 of the 2026 season, Brock Purdy has climbed to the No. 1 spot, unseating Josh Allen who had previously held the top position. Kirk Cousins has also made a notable rise, entering the top 10 in the updated 1-32 rankings. The weekly rankings reflect current quarterback performance across all 32 NFL teams.