49ers report card

Pass offense: Frank Gore's first career 100-yard receiving game rescued the stats from oblivion, as Alex Smith again struggled to complete passes to wideouts. Grade: D+

Rushing offense: The Chiefs defense loaded up against runs up the middle, which is exactly what the 49ers kept trying. Gore averaged 2.9 yards with a long of 6. Grade: F

Pass defense: Quarterback Matt Cassel tormented the 49ers with screen passes, highlighted by Dexter McCluster's 31-yard whirlwind of a touchdown. Grade: C-

Rushing defense: The 207 rushing yards allowed by the 49ers marked their worst performance since giving up 226 to Buffalo in 2004. The Chiefs had two backs with 90+ yards. Grade: F

Special teams: Rookie Kyle Williams made his NFL debut by averaging 21.7 yards on three kickoffs; Andy Lee's longest punt was a 58-yarder. Grade: B

Coaching: The Chiefs were better prepared, more creative and a step ahead from start to finish. Coach Mike Singletary's late timeouts came across as petty. Grade: F

-- Daniel Brown