Career Leaders for WHIP
Minimum of 3.1 PA/G, 1.0 IP/G, and 0.1 decision/G for career leaderboards for rate statistics.
| Rank | Player | WHIP |
| 1. | Pedro Martinez | 1.11 |
| 2. | Randy Johnson | 1.16 |
| 3. | Jered Weaver | 1.18 |
| 4. | Felix Hernandez | 1.19 |
| 5. | Justin Verlander | 1.21 |
