Statistics
NFL Career
| Year | Games | Pass Comp | Pass Att | Pass Yards | Pass TD | INT | Carries | Run Yards | Run TD |
| 2004 | 14 | 196 | 295 | 2621 | 17 | 11 | 56 | 144 | 1 |
| 2005 | 12 | 168 | 268 | 2385 | 17 | 9 | 31 | 69 | 3 |
| 2006 | 15 | 280 | 469 | 3513 | 18 | 23 | 32 | 98 | 2 |
| 2007 | 15 | 264 | 404 | 3154 | 32 | 11 | 35 | 204 | 2 |
| 2008 | 16 | 281 | 469 | 3301 | 17 | 15 | 34 | 101 | 2 |
| 2009 | 3 | 78 | 109 | 860 | 3 | 4 | 6 | 12 | 2 |
NFL Records
Most regular season wins in a season, rookie QB — 13 (2004)
Longest regular season win streak to start a career for a NFL QB — 15 games (won all 13 starts in the 2004 season, won first 2 games of the 2005 season)
Most wins as a starting quarterback in first five NFL seasons (reg. season only) - 51 (from 2004-2008)
Highest passer rating, rookie season — 98.1 (20
Highest completion percentage, rookie season — 66.4% (2004)
Most games with a completion percentage of 80.0% or higher, regular season (min. 10 attempts) — 4 (2007)
(Tie) Most touchdown passes, Monday Night Football game — 5 (11/5/2007 vs. Baltimore Ravens)
First QB to start two Conference Championship games in first two seasons in the NFL (2004 & 2005)
Youngest starting QB ever to win the Super Bowl (2005; second-youngest QB to play in the Super Bowl, behind Dan Marino)
Roethlisberger became the second quarterback in NFL history, along with Peyton Manning, to register three perfect passing games during the regular season, and the only quarterback to ever register two perfect passing games in one regular season.
Lowest passer rating for a Super Bowl winning QB — 22.6 (Completed 9 of 21 passes for zero touchdowns with two interceptions)
Tied for most seasons with one or more postseason starts in the first five years in the league since 1960, with four starts (tied with Bernie Kosar, Donovan McNabb, and Eli Manning).