Jamaal Charles ran for two touchdowns, the Kansas City defense harassed Oakland quarterback Terrelle Pryor into throwing three second-half interceptions and the Chiefs remained unbeaten with a 24-7 victory over the Raiders on Sunday.
After winning just twice last season, Kansas City (6-0) continued the second-best start in franchise history.
The Chiefs won their first nine games during the 2003 season.
The Chiefs piled up 10 sacks while ending a three-game skid to the Raiders (2-4), and a six-game losing streak against them at Arrowhead Stadium.
Pryor threw for 216 yards and a touchdown, but his interceptions proved costly.
The first led to Charles' go-ahead touchdown run, the second led to Ryan Succop's fourth-quarter field goal, and Husain Abdullah returned the last one for a touchdown to seal the win.