Career Leaders for ERA
Minimum of 3.1 PA/G, 1.0 IP/G, and 0.1 decision/G for career leaderboards for rate statistics.
| Rank | Player | ERA |
| 1. | Clayton Kershaw | 3.15 |
| 2. | Felix Hernandez | 3.30 |
| 3. | Chris Carpenter | 3.48 |
| 4. | Pedro Martinez | 3.58 |
| 5. | Justin Verlander | 3.62 |
