Mike Maroth ERA in 2003
5.732003 Regular Season
Mike Maroth posted a 5.73 ERA in the 2003 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. | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 28, 2003 |  vs MIN | W 9-4 | 5.73 | 6.0 | 8 | 2 | 2 | 1 | 2 | 1 |
| Sep 23, 2003 |  @ KC | W 15-6 | 5.81 | 5.0 | 10 | 6 | 5 | 1 | 2 | 2 |
| Sep 18, 2003 |  vs TOR | L 10-6 | 5.73 | 5.2 | 8 | 7 | 7 | 2 | 5 | 1 |
| Sep 12, 2003 | vs KC | W 3-0 | 5.55 | 6.0 | 5 | 0 | 0 | 2 | 4 | 0 |
| Sep 5, 2003 | @ TOR | L 8-6 | 5.75 | 3.0 | 9 | 8 | 8 | 2 | 2 | 2 |
| Aug 30, 2003 |  vs CHW | L 5-2 | 5.42 | 6.2 | 8 | 5 | 5 | 2 | 2 | 2 |
| Aug 24, 2003 |  vs LAA | W 10-9 | 5.37 | 5.0 | 8 | 6 | 5 | 1 | 2 | 1 |
| Aug 19, 2003 |  vs TEX | L 5-4 | 5.25 | 6.1 | 7 | 4 | 3 | 2 | 5 | 1 |
| Aug 13, 2003 | @ TEX | L 7-3 | 5.29 | 5.0 | 8 | 6 | 6 | 0 | 1 | 2 |
| Aug 8, 2003 | vs MIN | L 4-3 | 5.10 | 8.0 | 7 | 4 | 3 | 1 | 2 | 1 |
| Aug 2, 2003 | @ MIN | W 9-2 | 5.20 | 5.1 | 9 | 1 | 1 | 3 | 3 | 0 |
| Jul 27, 2003 | vs KC | L 5-1 | 5.35 | 7.0 | 7 | 5 | 5 | 2 | 1 | 2 |
| Jul 22, 2003 |  @ BOS | L 7-4 | 5.28 | 5.2 | 10 | 7 | 7 | 4 | 3 | 3 |
| Jul 17, 2003 | @ CHW | W 10-9 F/10 | 5.01 | 6.1 | 8 | 5 | 5 | 0 | 1 | 2 |
| Jul 11, 2003 | vs BOS | L 5-3 | 4.89 | 5.2 | 10 | 4 | 4 | 3 | 4 | 0 |
| Jul 5, 2003 | @ KC | W 9-5 | 4.81 | 7.2 | 8 | 4 | 4 | 3 | 2 | 2 |
| Jun 30, 2003 | vs TOR | W 6-2 | 4.82 | 7.0 | 8 | 2 | 2 | 1 | 4 | 0 |
| Jun 25, 2003 | @ BOS | L 11-2 | 4.99 | 7.0 | 7 | 2 | 2 | 2 | 4 | 1 |
| Jun 20, 2003 |  @ COL | W 7-5 | 5.19 | 6.0 | 9 | 3 | 2 | 1 | 1 | 0 |
| Jun 14, 2003 | vs COL | W 9-7 | 5.35 | 5.0 | 6 | 3 | 3 | 1 | 2 | 1 |
| Jun 7, 2003 |  @ SF | L 7-5 | 5.35 | 6.0 | 6 | 2 | 2 | 1 | 3 | 1 |
| May 28, 2003 |  vs CLE | L 8-2 | 5.56 | 1.1 | 2 | 4 | 2 | 2 | 0 | 0 |
| May 23, 2003 | @ CHW | W 3-2 | 5.40 | 7.0 | 3 | 2 | 2 | 2 | 3 | 1 |
| May 18, 2003 |  vs SEA | L 6-2 | 5.73 | 5.0 | 8 | 6 | 6 | 1 | 1 | 3 |
| May 13, 2003 |  vs ATH | L 3-1 | 5.27 | 6.1 | 5 | 3 | 3 | 3 | 2 | 0 |
| May 6, 2003 |  @ BAL | W 7-6 | 5.40 | 7.0 | 3 | 3 | 3 | 2 | 2 | 1 |
| May 1, 2003 | vs BAL | L 6-4 | 5.66 | 7.2 | 4 | 4 | 4 | 0 | 5 | 0 |
| Apr 25, 2003 | @ SEA | L 6-0 | 5.88 | 2.0 | 8 | 6 | 6 | 1 | 2 | 0 |
| Apr 20, 2003 | @ KC | L 4-3 | 4.55 | 8.0 | 4 | 4 | 3 | 0 | 3 | 1 |
| Apr 15, 2003 | @ MIN | L 6-4 | 4.94 | 5.1 | 9 | 5 | 5 | 1 | 3 | 1 |
| Apr 10, 2003 | vs KC | L 4-2 | 3.93 | 7.0 | 5 | 2 | 2 | 1 | 4 | 0 |
| Apr 5, 2003 | @ CHW | L 7-0 | 4.76 | 4.1 | 9 | 4 | 4 | 2 | 4 | 1 |
| Mar 31, 2003 | vs MIN | L 3-1 | 2.57 | 7.0 | 5 | 2 | 2 | 0 | 3 | 1 |
- 5th-best of Mike Maroth's 6 seasons on file; the best is 4.19 in 2006.
- Up 1.25 from 4.48 in 2002.
Figures come from ESPN's box scores and were last read on October 31, 2026.