| Career - Worst WHIP | |||
| Rk | Player Name | Totals | |
| 1 | J.A. Happ | 1.55 | |
| 2 | Al Leiter | 1.53 | |
| 3 | Jarrod Washburn | 1.42 | |
| 4 | Jaime Garcia | 1.42 | |
| 5 | Tom Glavine | 1.41 | |
| 6 | Eric Milton | 1.41 | |
| 7 | Charles Nagy | 1.40 | |
| 8 | Kris Benson | 1.39 | |
| 9 | Brad Penny | 1.38 | |
| 10 | Frankie Montas | 1.38 | |
| 11 | Jake Peavy | 1.34 | |
| 12 | Adam Wainwright | 1.27 | |
| 13 | Michael Pineda | 1.27 | |
| 14 | Jameson Taillon | 1.26 | |
| 15 | Zack Greinke | 1.26 | |
| 16 | Kevin Brown | 1.25 | |
| 17 | Garrett Richards | 1.22 | |
| 18 | Matt Garza | 1.19 | |
| 19 | Tyler Glasnow | 1.15 | |
| Single Season - Worst WHIP | |||||
| Rk | Player Name | Totals | Year | ||
| 1 | Kevin Gross | 2.01 | 1994 | ||
| 2 | Rick Sutcliffe | 1.82 | 1994 | ||
| 3 | Hideki Irabu | 1.66 | 1998 | ||
| 4 | Bob Tewksbury | 1.66 | 1994 | ||
| 5 | Tom Glavine | 1.58 | 1994 | ||
| 6 | Tom Glavine | 1.58 | 1999 | ||
| 7 | Mark Gubicza | 1.57 | 1997 | ||
| 8 | Eric Milton | 1.56 | 2002 | ||
| 9 | Matt Morris | 1.56 | 2002 | ||
| 10 | Doug Brocail | 1.55 | 1994 | ||
| 11 | Jake Peavy | 1.54 | 2004 | ||
| 12 | Charles Nagy | 1.53 | 1998 | ||
| 13 | Mark Redman | 1.53 | 2003 | ||
| 14 | Jake Peavy | 1.51 | 2007 | ||
| 15 | Jarrod Washburn | 1.50 | 2003 | ||
| 16 | Adam Wainwright | 1.50 | 2008 | ||
| 17 | J.A. Happ | 1.49 | 2010 | ||
| 18 | Kris Benson | 1.47 | 2000 | ||
| 19 | Jaime Garcia | 1.47 | 2016 | ||
| 20 | Brad Penny | 1.44 | 2006 | ||
| 21 | Tom Glavine | 1.43 | 1995 | ||
| 22 | Al Leiter | 1.43 | 1997 | ||
| 23 | Randy Johnson | 1.43 | 2007 | ||
| 24 | Paul Maholm | 1.43 | 2009 | ||
| 25 | Alexi Ogando | 1.43 | 2012 | ||