Derek Lowe ERA in 2004
5.422004 Regular Season
Derek Lowe posted a 5.42 ERA in the 2004 regular season.
| ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent. | IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs. | H: Times the batter reached base by hitting the ball, without help from an error. | R: Runs — scored by the batter, or allowed by the pitcher. | ER: Earned runs allowed — runs that scored without help from an error. | BB: Times the batter reached first base on four balls. | K: Batters this pitcher struck out. | HR: Home runs hit. | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 3, 2004 |  @ BAL | L 3-2 | 5.42 | 2.0 | 3 | 1 | 1 | 1 | 2 | 0 |
| Sep 28, 2004 |  @ TB | W 10-8 F/11 | 5.43 | 2.1 | 8 | 5 | 5 | 2 | 0 | 0 |
| Sep 23, 2004 | vs BAL | L 9-7 | 5.25 | 5.0 | 9 | 5 | 4 | 1 | 4 | 1 |
| Sep 18, 2004 |  @ NYY | L 14-4 | 5.19 | 1.0 | 4 | 7 | 6 | 3 | 1 | 0 |
| Sep 12, 2004 |  @ SEA | L 2-0 | 4.91 | 7.0 | 5 | 2 | 2 | 1 | 6 | 1 |
| Sep 7, 2004 |  @ ATH | W 7-1 | 5.01 | 6.1 | 5 | 1 | 1 | 4 | 1 | 0 |
| Sep 2, 2004 |  vs LAA | W 4-3 | 5.15 | 7.1 | 7 | 3 | 3 | 1 | 6 | 0 |
| Aug 27, 2004 |  vs DET | W 5-3 | 5.22 | 8.0 | 7 | 3 | 3 | 0 | 7 | 1 |
| Aug 22, 2004 |  @ CHW | W 6-5 | 5.32 | 6.2 | 7 | 5 | 5 | 2 | 3 | 2 |
| Aug 16, 2004 |  vs TOR | W 8-4 | 5.26 | 7.0 | 5 | 4 | 3 | 1 | 7 | 0 |
| Aug 11, 2004 | vs TB | W 14-4 | 5.33 | 5.2 | 8 | 3 | 1 | 1 | 4 | 0 |
| Aug 6, 2004 | @ DET | L 4-3 | 5.50 | 7.0 | 9 | 4 | 4 | 2 | 3 | 0 |
| Jul 31, 2004 |  @ MIN | L 5-4 | 5.52 | 7.1 | 8 | 4 | 4 | 3 | 4 | 1 |
| Jul 25, 2004 | vs NYY | W 9-6 | 5.56 | 6.2 | 7 | 4 | 2 | 3 | 5 | 0 |
| Jul 20, 2004 | @ SEA | W 9-7 | 5.75 | 5.0 | 9 | 4 | 4 | 2 | 2 | 0 |
| Jul 15, 2004 | @ LAA | L 8-1 | 5.67 | 4.2 | 9 | 4 | 4 | 3 | 4 | 0 |
| Jul 10, 2004 |  vs TEX | W 14-6 | 5.57 | 7.0 | 4 | 6 | 0 | 3 | 5 | 1 |
| Jul 4, 2004 |  @ ATL | L 10-4 | 6.02 | 4.1 | 8 | 8 | 8 | 2 | 1 | 1 |
| Jun 29, 2004 | @ NYY | L 11-3 | 5.47 | 5.0 | 9 | 9 | 5 | 1 | 1 | 2 |
| Jun 23, 2004 | vs MIN | L 4-2 | 5.24 | 7.0 | 7 | 4 | 4 | 1 | 7 | 1 |
| Jun 17, 2004 |  @ COL | W 11-0 | 5.25 | 7.0 | 4 | 0 | 0 | 4 | 3 | 0 |
| Jun 11, 2004 |  vs LAD | W 2-1 | 5.83 | 7.0 | 5 | 0 | 0 | 4 | 4 | 0 |
| Jun 6, 2004 |  @ KC | W 5-3 | 6.55 | 5.0 | 3 | 3 | 2 | 1 | 4 | 1 |
| May 31, 2004 | vs BAL | L 13-4 F/10 | 6.84 | 5.0 | 8 | 7 | 7 | 4 | 0 | 1 |
| May 26, 2004 | vs ATH | W 9-6 | 6.22 | 6.0 | 9 | 5 | 5 | 1 | 3 | 1 |
| May 20, 2004 | @ TB | L 9-6 | 6.02 | 2.1 | 8 | 7 | 7 | 0 | 1 | 0 |
| May 14, 2004 | @ TOR | W 9-3 F/10 | 4.74 | 5.2 | 4 | 3 | 2 | 4 | 2 | 0 |
| May 9, 2004 | vs KC | L 8-4 | 5.01 | 5.2 | 5 | 6 | 4 | 5 | 3 | 0 |
| May 4, 2004 |  @ CLE | L 7-6 | 4.73 | 5.0 | 10 | 7 | 2 | 2 | 2 | 0 |
| Apr 29, 2004 | vs TB | W 7-3 | 4.98 | 7.0 | 9 | 3 | 1 | 1 | 3 | 0 |
| Apr 23, 2004 | @ NYY | W 11-2 | 6.75 | 6.0 | 6 | 2 | 2 | 2 | 2 | 1 |
| Apr 18, 2004 | vs NYY | L 7-3 F/10 | 9.35 | 2.2 | 8 | 7 | 7 | 4 | 2 | 0 |
| Apr 7, 2004 | @ BAL | W 10-3 | 3.00 | 6.0 | 7 | 2 | 2 | 2 | 3 | 0 |
- 15th-best of Derek Lowe's 17 seasons on file; the best is 2.56 in 2000.
- Up 0.95 from 4.47 in 2003.
Figures come from ESPN's box scores and were last read on October 29, 2026.