49ers by the numbers

49ers QB Alex Smith is the No. 1-ranked passer in the NFL through five games. (US Presswire)

Through five weeks of the season, the 49ers have piled up some impressive statistics in several facets of the game. Here is a look at some of the notable stats:

• No. 2 in the NFL in total defense (262. ypg), trailing division rival Seattle (258.6). A closer look: San Francisco's opponents have averaged 345 ypg on offense, Seattle's have averaged 318.

• No. 2 in the NFL in passing defense (181.2 ypg), behind Dallas. A closer look: The 49ers have played against QBs Aaron Rodgers, Matthew Stafford, Christian Ponder, Mark Sanchez and Ryan Fitzpatrick. Dallas has dealt with Eli Manning, Russell Wilson, Josh Freeman and Jay Cutler.

• Defense is tied for No. 6 in the NFL in yards per carry (3.5). A closer look: The 49ers have yet to allow a 100-yard rusher. Minnesota is the only opponent that has eclipsed the 100-yard mark (146).

• Defense ranks No. 11 in the NFL allowing a 35 percent conversion rate on third down. A closer look: On offense, the 49ers are converting 40 percent of the time.

• No. 7 in turnover margin (plus-5). A closer look: QB Alex Smith said turnover differential in the No. 1 stat in terms of determining the winner of a game. In the team's loss to Minnesota, it lost the turnover battle, 3-2.

• Offense is tied for No. 3 in the NFL in first downs per game (24.0). A closer look: This week's opponent, the New York Giants, average the same amount.

• The 49ers are the league's 10^th-most penalized team in yards. They've been penalized 34 times for 308 yards.

• No. 1 in the NFL in rushing yards per game (195.8). A closer look: San Francisco also ranks No. 1 in yards per carry (6.1), nearly a full yard better than second-ranked Kansas City (5.2).

• Only the New England Patriots (10) and Miami Dolphins (9) have scored more rushing touchdowns than San Francisco (8).

• No. 1 in the NFL in 20-plus yard runs (8). A closer looks: While the team has eight such runs, none of those went for more than 40.

• No. 1 in scoring defense (13.6). A closer look: The 49ers also rank No. 1 in the NFL in both total point differential (81) and margin per game (16.2 ppg)

• QB Alex Smith is No. 1 in QB rating (108.7). A closer look: Matt Ryan, Tom Brady, Peyton Manning and Robert Griffin III round out the top five.

• Among starting QBs, Smith, Brady and Ben Reothlisberger have the best TD-to-INT ratios. All three have 8 TD passes and 1 INT.

• Smith ranks No. 4 in the league in completion percentage (68.8). A closer look: The four QBs ahead of him (Griffin, Ponder, Rodgers) have attempted more passes.

• RB Frank Gore is No. 7 in rushing (432 yards). A closer look: All six players with more yards than Gore have at least 17 more carries. He has the fewest carries among the league's top-12 rushers.

• WR Michael Crabtree is No. 19 in the NFL with 27 receptions. A closer look: Just three of his catches have gone for more than 20 yards.

• TE Vernon Davis ranks No. 2 in yards per reception among TEs with at least 150 yards receiving. A closer look: The only player with a better average is Brent Celek, whose younger brother, 49ers TE Garrett Celek, made his first career catch Sunday. Davis is also in a five-way tie for first among TEs with 4 TDs.

Note

The team added LB Clark Haggans to its active roster and released LB Eric Bakhtiari in a corresponding roster move. Haggans served a three-game suspension as a result of a drunk driving arrest.