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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | Chad Qualls | 0.78 | 2006-2020 | |
| 2 | Gilberto Martínez# | 0.85 | 2025-2031 | |
| 3 | John Wood# | 0.87 | 2029-2031 | |
| 4 | Matt J Miller | 0.88 | 2003-2016 | |
| 5 | Alfredo Gómez# | 0.89 | 2028-2031 | |
| 6 | Jonathan Papelbon | 0.91 | 2008-2021 | |
| 7 | Bob Schultz | 0.92 | 2013-2022 | |
| 7 | Jason Dickson | 0.92 | 1997-2006 | |
| 9 | Dan Woods# | 0.93 | 2023-2031 | |
| 10 | Bryan Kent# | 0.96 | 2025-2031 | |
| 10 | Luis Anguiana# | 0.96 | 2026-2031 | |
| 12 | Eduardo Vázquez# | 0.97 | 2023-2030 | |
| 12 | Ian Kennedy | 0.97 | 2010-2019 | |
| 14 | A J Burnett | 0.98 | 1999-2010 | |
| 15 | Paul Hale# | 0.99 | 2020-2031 | |
| 15 | Ronald Moyer# | 0.99 | 2023-2031 | |
| 15 | Javier Vazquez* | 0.99 | 1998-2013 | |
| 18 | Gabe Johnson | 1.00 | 2019-2028 | |
| 19 | Johan Santana | 1.01 | 2000-2015 | |
| 20 | David Price | 1.02 | 2011-2019 | |
| 21 | Dan White | 1.03 | 2012-2021 | |
| 21 | Charlie Frohwirth | 1.03 | 2012-2024 | |
| 21 | Heath Bell | 1.03 | 2004-2021 | |
| 21 | Duane Wilson | 1.03 | 2008-2020 | |
| 25 | Roger Bailey | 1.04 | 2003-2014 | |
| 25 | Máximo Sánchez | 1.04 | 2015-2025 | |
| 27 | Josh Fogg | 1.05 | 2001-2012 | |
| 27 | Kevin Walters | 1.05 | 2003-2015 | |
| 27 | Jerry Patterson | 1.05 | 2002-2015 | |
| 30 | Eddie Morgan* | 1.06 | 2005-2019 | |
| 30 | Daron Maddox | 1.06 | 2015-2027 | |
| 30 | Adrian Ackermann | 1.06 | 2014-2022 | |
| 30 | António Ortíz | 1.06 | 2002-2011 | |
| 30 | Chris Sharp# | 1.06 | 2021-2031 | |
| 30 | Carlos Jiménez# | 1.06 | 2021-2031 | |
| 30 | Cole Hamels* | 1.06 | 2007-2023 | |
| 30 | Clifton Jackson# | 1.06 | 2024-2029 | |
| 30 | Roger Clemens* | 1.06 | 1984-2006 | |
| 30 | Henry Moss# | 1.06 | 2019-2029 | |
| 40 | Brad Cochran | 1.07 | 2019-2027 | |
| 41 | Zack Greinke* | 1.08 | 2005-2020 | |
| 41 | Tim Pulliam# | 1.08 | 2026-2031 | |
| 43 | Raúl López | 1.09 | 2000-2016 | |
| 43 | Raúl Mateo# | 1.09 | 2026-2031 | |
| 43 | Jeff Shoemaker# | 1.09 | 2025-2031 | |
| 43 | Jose A Nunez | 1.09 | 2001-2012 | |
| 47 | Joakim Soria | 1.10 | 2012-2022 | |
| 47 | Dennis Redden# | 1.10 | 2029-2031 | |
| 47 | Madison Bumgarner | 1.10 | 2014-2031 | |
| 47 | Ryan Arnold | 1.10 | 2012-2021 | |
| 47 | Roy Ward | 1.10 | 2014-2026 | |
| 47 | Jorge Enríquez# | 1.10 | 2020-2031 | |
| 53 | James Ryan# | 1.11 | 2017-2027 | |
| 54 | Daniel Patterson | 1.12 | 2017-2029 | |
| 54 | Matt Morris | 1.12 | 1997-2005 | |
| 54 | Tito Smith# | 1.12 | 2020-2031 | |
| 57 | José Torres# | 1.13 | 2026-2031 | |
| 57 | George Burke# | 1.13 | 2019-2029 | |
| 57 | Amdre Nova# | 1.13 | 2030-2031 | |
| 57 | Alfredo Huerta# | 1.13 | 2022-2030 | |
| 57 | Francisco Ramírez# | 1.13 | 2017-2030 | |
| 57 | Jon Lieber | 1.13 | 1994-2009 | |
| 63 | Ugueth Urbina | 1.14 | 1995-2013 | |
| 63 | Eldon Hernández | 1.14 | 2018-2026 | |
| 63 | Ken Brandon | 1.14 | 2019-2029 | |
| 63 | George Connolly# | 1.14 | 2018-2031 | |
| 67 | Esteban Loaiza | 1.15 | 1995-2006 | |
| 67 | Santiago Herrera | 1.15 | 2000-2018 | |
| 69 | Archie Esparza# | 1.16 | 2025-2031 | |
| 69 | Eric Hillman | 1.16 | 1992-2004 | |
| 69 | Steve Karsay | 1.16 | 1993-2007 | |
| 69 | Brandon Webb* | 1.16 | 2004-2024 | |
| 69 | Carlos Cotter | 1.16 | 2008-2020 | |
| 69 | Felix Hernandez | 1.16 | 2009-2020 | |
| 69 | Brett Tomko | 1.16 | 1997-2004 | |
| 69 | Barry Zito | 1.16 | 2000-2014 | |
| 69 | Hipolito Pichardo | 1.16 | 1992-2008 | |
| 69 | Joel Zumaya | 1.16 | 2011-2023 | |
| 69 | Miguel Moreno# | 1.16 | 2020-2031 | |
| 80 | Rick Cederberg# | 1.17 | 2025-2031 | |
| 80 | Jon Lester | 1.17 | 2008-2021 | |
| 80 | Cisco Castellanos# | 1.17 | 2025-2031 | |
| 80 | Kevin Schaefer | 1.17 | 2012-2023 | |
| 80 | Héctor Bernal# | 1.17 | 2024-2031 | |
| 80 | Lee Myers# | 1.17 | 2019-2031 | |
| 86 | Eric Hurley | 1.18 | 2007-2020 | |
| 86 | Frank Larkin | 1.18 | 2000-2011 | |
| 86 | Andy Ashby | 1.18 | 1991-2002 | |
| 89 | John Halama | 1.19 | 1998-2008 | |
| 89 | Jeff Samardzija | 1.19 | 2009-2021 | |
| 91 | Dwight Tucker | 1.20 | 2011-2027 | |
| 91 | Scott Randall | 1.20 | 2003-2020 | |
| 93 | John Fletcher# | 1.21 | 2026-2031 | |
| 93 | William Pierce# | 1.21 | 2025-2031 | |
| 93 | Jake Peavy | 1.21 | 2002-2017 | |
| 93 | Aaron Sele* | 1.21 | 1993-2006 | |
| 93 | Toki Nagai | 1.21 | 2004-2015 | |
| 93 | Justin Thompson | 1.21 | 2016-2026 | |
| 93 | Gary Lefebvre | 1.21 | 2002-2016 | |
| 100 | Allen Bailey | 1.22 | 2011-2023 |
