Mark Prior ERA in 2005
3.672005 Regular Season
Mark Prior posted a 3.67 ERA in the 2005 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, 2005 |  vs PIT | L 3-2 | 3.67 | 5.0 | 6 | 3 | 1 | 4 | 7 | 1 |
| Sep 21, 2005 |  @ MIL | L 7-6 | 3.73 | 6.0 | 6 | 3 | 3 | 4 | 10 | 1 |
| Sep 15, 2005 |  vs STL | L 6-1 F/10 | 3.70 | 5.0 | 6 | 3 | 3 | 1 | 4 | 0 |
| Sep 10, 2005 |  @ SF | W 5-2 | 3.64 | 6.2 | 5 | 2 | 2 | 3 | 7 | 0 |
| Sep 5, 2005 | @ STL | L 6-4 | 3.69 | 6.0 | 5 | 2 | 2 | 2 | 6 | 0 |
| Aug 30, 2005 |  vs LAD | W 6-3 | 3.72 | 6.0 | 8 | 3 | 3 | 0 | 7 | 2 |
| Aug 24, 2005 |  vs ATL | L 3-1 | 3.68 | 6.2 | 4 | 3 | 3 | 4 | 7 | 0 |
| Aug 19, 2005 |  @ COL | W 5-3 F/10 | 3.66 | 6.0 | 5 | 2 | 2 | 2 | 10 | 1 |
| Aug 14, 2005 | vs STL | W 5-4 | 3.70 | 6.0 | 7 | 3 | 3 | 4 | 7 | 1 |
| Aug 9, 2005 |  vs CIN | L 8-3 | 3.65 | 7.0 | 8 | 3 | 3 | 0 | 11 | 2 |
| Aug 4, 2005 |  @ PHI | L 6-4 | 3.64 | 4.1 | 6 | 6 | 6 | 3 | 7 | 3 |
| Jul 29, 2005 |  vs ARI | W 4-3 | 3.26 | 7.1 | 7 | 3 | 3 | 2 | 8 | 0 |
| Jul 24, 2005 | @ STL | W 8-4 F/10 | 3.23 | 6.0 | 5 | 3 | 3 | 3 | 2 | 3 |
| Jul 19, 2005 | @ CIN | W 7-3 | 3.15 | 6.2 | 7 | 3 | 3 | 2 | 8 | 0 |
| Jul 14, 2005 | vs PIT | W 5-1 | 3.07 | 8.0 | 2 | 1 | 0 | 3 | 10 | 0 |
| Jul 7, 2005 | @ ATL | L 6-0 | 3.41 | 4.2 | 7 | 6 | 6 | 4 | 5 | 1 |
| Jul 1, 2005 |  vs WSH | L 4-3 | 2.86 | 5.0 | 6 | 3 | 3 | 0 | 7 | 1 |
| Jun 26, 2005 |  @ CHW | W 2-0 | 2.66 | 6.0 | 1 | 0 | 0 | 0 | 3 | 0 |
| May 27, 2005 | vs COL | W 10-3 | 2.93 | 3.1 | 2 | 1 | 1 | 3 | 3 | 0 |
| May 22, 2005 | vs CHW | W 4-3 | 2.95 | 9.0 | 6 | 3 | 3 | 1 | 7 | 3 |
| May 17, 2005 | @ PIT | W 4-3 | 2.93 | 7.0 | 7 | 3 | 3 | 1 | 6 | 2 |
| May 11, 2005 |  vs NYM | W 4-3 F/10 | 2.77 | 7.0 | 2 | 2 | 1 | 3 | 7 | 0 |
| May 6, 2005 | vs PHI | L 3-2 | 3.09 | 8.0 | 4 | 1 | 1 | 2 | 10 | 1 |
| May 1, 2005 |  @ HOU | L 9-3 | 3.75 | 5.0 | 7 | 8 | 8 | 3 | 7 | 2 |
| Apr 25, 2005 | vs CIN | W 10-6 | 0.95 | 6.0 | 6 | 2 | 2 | 2 | 10 | 1 |
| Apr 19, 2005 | @ CIN | W 7-1 | 0.00 | 7.0 | 4 | 1 | 0 | 2 | 6 | 0 |
| Apr 13, 2005 |  vs SD | W 8-3 | 0.00 | 6.0 | 4 | 0 | 0 | 1 | 6 | 0 |
- 3rd-best of Mark Prior's 5 seasons on file; the best is 2.43 in 2003.
- Down 0.35 from 4.02 in 2004.
Figures come from ESPN's box scores and were last read on October 29, 2026.