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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | Justin Souza | 0.59 | 2012-2012 | |
| 2 | Chris Jones | 0.67 | 2010-2012 | |
| 3 | Kyle Hendricks# | 0.78 | 2016-2024 | |
| 4 | Jacob Degrom# | 0.80 | 2012-2025 | |
| 5 | Mat Latos | 0.82 | 2010-2016 | |
| 5 | Sandy Koufax | 0.82 | 1955-1966 | |
| 7 | Jon Niese | 0.85 | 2009-2016 | |
| 8 | Homer Bailey | 0.90 | 2009-2020 | |
| 9 | Merrill Kelly# | 0.91 | 2019-2024 | |
| 10 | Corbin Burnes# | 0.96 | 2020-2025 | |
| 11 | Stephen Strasburg# | 0.99 | 2010-2025 | |
| 12 | Madison Bumgarner | 1.00 | 2011-2023 | |
| 13 | Lance McCullers Jr.# | 1.03 | 2016-2025 | |
| 14 | Cole Hamels | 1.04 | 2007-2022 | |
| 15 | Michael Pineda | 1.07 | 2011-2023 | |
| 16 | Catfish Hunter | 1.09 | 1965-1976 | |
| 17 | Justin Verlander# | 1.11 | 2007-2025 | |
| 18 | Chris Archer | 1.12 | 2012-2023 | |
| 18 | Shane McClanahan# | 1.12 | 2023-2025 | |
| 18 | Carlos Carrasco | 1.12 | 2010-2023 | |
| 21 | Blake Snell# | 1.15 | 2012-2025 | |
| 21 | Max Scherzer# | 1.15 | 2009-2025 | |
| 23 | Charlie Morton# | 1.18 | 2010-2025 | |
| 23 | Yu Darvish# | 1.18 | 2012-2025 | |
| 25 | Walker Buehler# | 1.19 | 2019-2025 | |
| 25 | Craig Kimbrel# | 1.19 | 2011-2025 | |
| 27 | Nathan Eovaldi# | 1.21 | 2012-2025 | |
| 28 | Corey Kluber | 1.22 | 2011-2023 | |
| 29 | Shohei Ohtani# | 1.23 | 2018-2025 | |
| 29 | Smith Smith | 1.23 | 2004-2017 | |
| 31 | David Price | 1.26 | 2009-2023 | |
| 31 | Chad Bettis | 1.26 | 2012-2019 | |
| 33 | Johnny Cueto | 1.27 | 2010-2023 | |
| 33 | Adam Wainwright | 1.27 | 2004-2023 | |
| 33 | Gerrit Cole# | 1.27 | 2012-2025 | |
| 36 | Hyun-Jin Ryu | 1.28 | 2013-2023 | |
| 36 | Zack Wheeler# | 1.28 | 2010-2025 | |
| 38 | Jose Quintana# | 1.29 | 2013-2025 | |
| 39 | German Marquez# | 1.31 | 2018-2025 | |
| 40 | Ross Detwiler | 1.32 | 2011-2023 | |
| 40 | Clayton Kershaw# | 1.32 | 2009-2025 | |
| 42 | Dylan Cease# | 1.34 | 2015-2025 | |
| 42 | Jeurys Familia | 1.34 | 2010-2022 | |
| 44 | Pablo Lopez# | 1.35 | 2021-2025 | |
| 45 | Matt Moore# | 1.36 | 2012-2025 | |
| 45 | Jake Odorizzi | 1.36 | 2012-2023 | |
| 47 | Trevor Bauer | 1.37 | 2012-2023 | |
| 47 | Dellin Betances | 1.37 | 2011-2021 | |
| 49 | Aaron Nola# | 1.38 | 2015-2025 | |
| 50 | Gio Gonzalez | 1.39 | 2010-2022 | |
| 50 | Edinson Volquez | 1.39 | 2008-2020 | |
| 50 | Wade Davis | 1.39 | 2009-2020 | |
| 53 | Tyler Mahle# | 1.41 | 2017-2025 | |
| 53 | Marcus Stroman# | 1.41 | 2015-2024 | |
| 53 | Derek Holland | 1.41 | 2010-2019 | |
| 56 | Freddy Peralta# | 1.44 | 2019-2025 | |
| 57 | Matthew Boyd# | 1.47 | 2019-2025 | |
| 57 | Miles Mikolas# | 1.47 | 2010-2025 | |
| 59 | Jaime Garcia | 1.52 | 2011-2017 | |
| 59 | Carlos Rodon# | 1.52 | 2015-2025 | |
| 61 | Logan Webb# | 1.58 | 2015-2025 | |
| 62 | Ryan Pressley | 1.65 | 2010-2012 | |
| 63 | Julio Urias# | 1.75 | 2018-2023 |
