| Career - WHIP | |||
| Rk | Player Name | Totals | |
| 1 | Mariano Rivera | 1.02 | |
| 2 | Tanner Roark | 1.13 | |
| 3 | Drew Rasmussen | 1.15 | |
| 4 | Michael Wacha | 1.21 | |
| 5 | Clayton Kershaw | 1.22 | |
| 6 | Randy Tomlin | 1.23 | |
| 7 | Diego Castillo | 1.25 | |
| 8 | Pablo Lopez | 1.26 | |
| 9 | Brad Radke | 1.28 | |
| 10 | Kevin Millwood | 1.34 | |
| 11 | James Shields | 1.37 | |
| 12 | Matt Boyd | 1.38 | |
| 13 | Jack McDowell | 1.39 | |
| 14 | Shane Bieber | 1.39 | |
| 15 | Tom Candiotti | 1.40 | |
| 16 | Mike Leake | 1.40 | |
| 17 | Kris Benson | 1.41 | |
| 18 | Scott Sanders | 1.43 | |
| 19 | Tommy Hanson | 1.43 | |
| 20 | Kelvim Escobar | 1.44 | |
| 21 | Brian Moehler | 1.46 | |
| 22 | Bartolo Colon | 1.51 | |
| 23 | Bud Black | 1.54 | |
| 24 | Chris Nabholz | 1.56 | |
| 25 | Shawn Estes | 1.93 | |
| Single Season - WHIP | |||||
| Rk | Player Name | Totals | Year | ||
| 1 | Jack McDowell | 0.96 | 1993 | ||
| 2 | Todd Stottlemyre | 1.01 | 1993 | ||
| 3 | Clayton Kershaw | 1.04 | 2014 | ||
| 4 | Tanner Roark | 1.08 | 2015 | ||
| 5 | Drew Rasmussen | 1.09 | 2023 | ||
| 6 | Randy Tomlin | 1.10 | 1993 | ||
| 7 | James Shields | 1.11 | 2008 | ||
| 8 | Mike Leake | 1.11 | 2016 | ||
| 9 | Clayton Kershaw | 1.12 | 2013 | ||
| 10 | Pablo Lopez | 1.13 | 2024 | ||
| 11 | Tanner Roark | 1.14 | 2014 | ||
| 12 | Pablo Lopez | 1.15 | 2021 | ||
| 13 | Drew Rasmussen | 1.15 | 2022 | ||
| 14 | Daniel Lynch | 1.15 | 2024 | ||
| 15 | Tom Candiotti | 1.16 | 1993 | ||
| 16 | Mark Hendrickson | 1.16 | 2003 | ||
| 17 | Kevin Millwood | 1.17 | 2006 | ||
| 18 | Michael Wacha | 1.17 | 2016 | ||
| 19 | Pablo Lopez | 1.17 | 2023 | ||
| 20 | Curt Schilling | 1.18 | 2002 | ||
| 21 | Robbie Erlin | 1.19 | 2019 | ||
| 22 | Tom Candiotti | 1.20 | 1992 | ||
| 23 | Chris Nabholz | 1.20 | 1993 | ||
| 24 | Brad Radke | 1.20 | 1997 | ||
| 25 | Shaun Marcum | 1.20 | 2008 | ||