It's important to keep in mind that there's still one more game - between the Texans and Jets - to play this week. But the 49ers offensive (and to a lesser extent defensive) explosion on Sunday had a big impact on the league's statistics, beginning with quarterback Alex Smith.
His near-perfect game boosted him to first place in passer rating at 108.7. That's more than two points above undefeated quarterbacks Matt Ryan (106.1) and Matt Schaub (105.3). That latter gets to play against the Revis-less Jets defense this evening.
Smith ranks fourth in completion percentage and sixth in yards per attempt - 7.9 - putting him between Eli Manning and Tom Brady in that category. Smith, who had been criticized for his lack of deep passes, now has 15 of 20 or more yards. Ryan, who boasts wideouts Roddy White and Julio Jones, has 14 such completions.
After rolling up 245 yards on the ground against the Jets and 311 rushing yards against the Bills, the 49ers lead the league in rushing with a 195.8-yard average. The Chiefs, who have the league's top individual rusher (barring Arian Foster's game tonight) in Jamaal Charles, are second at 180.8 yards a game.
Overall, the 49ers rank sixth in offense with a 401.2-yard average. They still rank 27th in passing offense despite 310 yards against the Bills.
The defense was overshadowed Sunday, but that unit now ranks second in total defense, holding opponents to 262.6 yards a game. The Seahawks are first in that category at 258.6 yards a game.
Counter intuitively, it's been the 49ers pass defense that has led the way. The 49ers rank second - behind Dallas - in that category, allowing 181.2 yards a game. They rank seventh in rushing defense, holding opponents to 81.4 yards a game. (They have yet to allow a rushing touchdown by a running back). The Dolphins lead that category at 61.4 yards a game.
-- Matt Barrows