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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Postseason Career Leaderboard |
|---|---|---|---|---|
| 1 | Josh Smoker | 0.52 | 2012 | |
| 2 | Justin Souza | 0.59 | 2012 | |
| 3 | Luis Castillo# | 0.60 | 2023 | |
| 4 | Mat Latos | 0.64 | 2015 | |
| 5 | Jacob Degrom# | 0.65 | 2021 | |
| 6 | Chris Jones | 0.67 | 2012 | |
| 7 | Merrill Kelly# | 0.68 | 2024 | |
| 8 | Madison Bumgarner | 0.69 | 2018 | |
| 9 | Justin Steele# | 0.72 | 2024 | |
| 10 | Walker Buehler# | 0.73 | 2020 | |
| 10 | Jacob Degrom# | 0.73 | 2017 | |
| 10 | Timothy Shibuya | 0.73 | 2012 | |
| 13 | Jacob Degrom# | 0.74 | 2024 | |
| 14 | Shane McClanahan# | 0.75 | 2025 | |
| 14 | Corbin Burnes# | 0.75 | 2024 | |
| 14 | Sandy Koufax | 0.75 | 1965 | |
| 17 | Lance McCullers Jr.# | 0.78 | 2019 | |
| 18 | Collin McHugh | 0.79 | 2016 | |
| 19 | Lance McCullers Jr.# | 0.80 | 2021 | |
| 20 | C.J. Wilson | 0.81 | 2014 | |
| 21 | Maikel Cleto | 0.83 | 2012 | |
| 21 | Sandy Koufax | 0.83 | 1963 | |
| 23 | Kyle Hendricks# | 0.85 | 2022 | |
| 23 | Jon Niese | 0.85 | 2014 | |
| 23 | Matt Crouse | 0.85 | 2012 | |
| 26 | Carlos Carrasco | 0.87 | 2016 | |
| 26 | Kyle Bradish# | 0.87 | 2025 | |
| 26 | Miguel Celestino | 0.87 | 2012 | |
| 29 | Yu Darvish# | 0.88 | 2018 | |
| 29 | Stephen Strasburg# | 0.88 | 2015 | |
| 29 | Shohei Ohtani# | 0.88 | 2023 | |
| 32 | Chris Archer | 0.89 | 2019 | |
| 32 | Homer Bailey | 0.89 | 2016 | |
| 34 | Marcus Stroman# | 0.90 | 2015 | |
| 34 | Patrick Sandoval# | 0.90 | 2022 | |
| 36 | Grant Dayton | 0.93 | 2021 | |
| 37 | Matt Moore# | 0.95 | 2014 | |
| 37 | Blake Snell# | 0.95 | 2022 | |
| 39 | Justin Verlander# | 0.97 | 2014 | |
| 39 | Shane McClanahan# | 0.97 | 2023 | |
| 41 | Adam Wainwright | 0.98 | 2017 | |
| 41 | Martin Perez# | 0.98 | 2015 | |
| 41 | Nick Anderson# | 0.98 | 2020 | |
| 44 | Christian Friedrich | 0.99 | 2011 | |
| 45 | Hunter Brown# | 1.00 | 2025 | |
| 45 | Josh Osich | 1.00 | 2012 | |
| 47 | David Price | 1.01 | 2016 | |
| 47 | Julio Urias# | 1.01 | 2025 | |
| 49 | Matt Andriese | 1.02 | 2012 | |
| 49 | Corey Kluber | 1.02 | 2017 | |
| 49 | Zac Gallen# | 1.02 | 2025 | |
| 52 | Matt Manning# | 1.03 | 2022 | |
| 52 | Justin Verlander# | 1.03 | 2020 | |
| 52 | Pablo Lopez# | 1.03 | 2024 | |
| 52 | Catfish Hunter | 1.03 | 1974 | |
| 56 | Joe Ryan# | 1.04 | 2025 | |
| 56 | Charlie Shirek | 1.04 | 2011 | |
| 58 | Catfish Hunter | 1.05 | 1972 | |
| 58 | David Price | 1.05 | 2015 | |
| 60 | Jose Quintana# | 1.07 | 2018 | |
| 61 | Corey Kluber | 1.08 | 2016 | |
| 61 | Catfish Hunter | 1.08 | 1973 | |
| 61 | Erik Davis | 1.08 | 2012 | |
| 64 | Jake Odorizzi | 1.09 | 2016 | |
| 64 | Corbin Burnes# | 1.09 | 2023 | |
| 64 | Nathan Eovaldi# | 1.09 | 2022 | |
| 64 | Max Scherzer# | 1.09 | 2013 | |
| 64 | Max Scherzer# | 1.09 | 2018 | |
| 69 | Kodai Senga# | 1.11 | 2023 | |
| 69 | Aaron Nola# | 1.11 | 2021 | |
| 71 | Nick Martinez# | 1.12 | 2024 | |
| 71 | Clayton Kershaw# | 1.12 | 2015 | |
| 73 | Zack Wheeler# | 1.13 | 2019 | |
| 73 | Lisalberto Bonilla | 1.13 | 2012 | |
| 73 | Johnny Cueto | 1.13 | 2017 | |
| 73 | Freddy Peralta# | 1.13 | 2021 | |
| 77 | Zach Plesac# | 1.14 | 2021 | |
| 78 | Gerrit Cole# | 1.15 | 2017 | |
| 79 | Jeurys Familia | 1.16 | 2012 | |
| 80 | Matt Harvey | 1.18 | 2015 | |
| 81 | Jeff Ames | 1.19 | 2012 | |
| 81 | Carlos Carrasco | 1.19 | 2019 | |
| 81 | Aaron Nola# | 1.19 | 2017 | |
| 84 | Carlos Frias | 1.20 | 2012 | |
| 84 | Shawn Armstrong# | 1.20 | 2012 | |
| 84 | Carlos Carrasco | 1.20 | 2021 | |
| 84 | Kendry Flores | 1.20 | 2019 | |
| 84 | Spencer Strider# | 1.20 | 2025 | |
| 89 | Catfish Hunter | 1.21 | 1976 | |
| 89 | Zachary Davies | 1.21 | 2020 | |
| 89 | Blake Snell# | 1.21 | 2024 | |
| 92 | Smith Smith | 1.22 | 2013 | |
| 92 | Madison Bumgarner | 1.22 | 2017 | |
| 94 | Justin Verlander# | 1.23 | 2015 | |
| 95 | Wade Davis | 1.24 | 2013 | |
| 95 | Justin Wilson | 1.24 | 2018 | |
| 95 | Jose Junior Rosario | 1.24 | 2012 | |
| 95 | Luke Weaver# | 1.24 | 2022 | |
| 99 | German Marquez# | 1.25 | 2018 | |
| 99 | Lance McCullers Jr.# | 1.25 | 2017 |
