Mark Leiter ERA in 2001
3.752001 Regular Season
Mark Leiter posted a 3.75 ERA in the 2001 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 7, 2001 |  vs ARI | W 15-5 | 3.75 | 2.0 | 1 | 0 | 0 | 0 | 2 | 0 |
| Oct 4, 2001 |  vs STL | L 10-3 | 3.97 | 1.0 | 3 | 2 | 2 | 0 | 1 | 1 |
| Oct 3, 2001 | vs STL | W 9-7 | 3.55 | 1.2 | 3 | 1 | 1 | 0 | 1 | 1 |
| Sep 29, 2001 |  @ COL | L 14-12 | 3.45 | 1.1 | 0 | 0 | 0 | 0 | 1 | 0 |
| Sep 26, 2001 | @ ARI | L 15-9 | 3.60 | 0.2 | 2 | 0 | 0 | 1 | 1 | 0 |
| Sep 25, 2001 | @ ARI | W 9-4 | 3.68 | 1.0 | 1 | 0 | 0 | 1 | 1 | 0 |
| Sep 22, 2001 |  vs CIN | L 3-1 | 3.81 | 2.0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Sep 19, 2001 | @ STL | L 8-2 | 4.10 | 1.0 | 2 | 1 | 1 | 1 | 0 | 0 |
| Sep 18, 2001 | @ STL | L 9-4 | 3.91 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sep 9, 2001 |  @ HOU | L 8-0 | 4.07 | 2.0 | 3 | 2 | 2 | 0 | 1 | 1 |
| Sep 6, 2001 | @ HOU | W 4-3 F/10 | 3.63 | 1.2 | 1 | 1 | 1 | 0 | 1 | 0 |
| Sep 3, 2001 |  @ PIT | W 12-7 | 3.48 | 2.1 | 2 | 1 | 1 | 0 | 3 | 0 |
| May 10, 2001 |  vs CHC | W 11-1 | 3.44 | 1.2 | 1 | 0 | 0 | 0 | 0 | 0 |
| May 5, 2001 |  @ MIA | W 8-2 | 3.78 | 6.0 | 4 | 2 | 2 | 1 | 4 | 1 |
| Apr 27, 2001 |  vs WSH | L 6-1 | 4.22 | 5.0 | 2 | 2 | 1 | 0 | 5 | 1 |
| Apr 22, 2001 |  @ SF | L 6-4 | 6.35 | 1.2 | 2 | 1 | 1 | 2 | 1 | 0 |
| Apr 13, 2001 | vs SF | L 7-3 | 6.75 | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 |
| Apr 12, 2001 | vs HOU | W 12-4 | 9.00 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Apr 11, 2001 | vs HOU | L 7-1 | 13.50 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Apr 5, 2001 | @ HOU | L 8-2 | 27.00 | 1.0 | 5 | 3 | 3 | 1 | 1 | 1 |
- 2nd-best of Mark Leiter's 11 seasons on file; the best is 3.55 in 1998.
- Down 3.00 from 6.75 in 1999.
Figures come from ESPN's box scores and were last read on November 3, 2026.