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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | B9 | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | Justin Souza | 0.56 | 2012-2012 | |
| 2 | Homer Bailey | 0.81 | 2009-2020 | |
| 3 | Corey Kluber | 1.17 | 2011-2023 | |
| 4 | Mat Latos | 1.36 | 2010-2016 | |
| 5 | Merrill Kelly# | 1.64 | 2019-2024 | |
| 6 | Jacob Degrom# | 1.72 | 2012-2025 | |
| 7 | Sandy Koufax | 1.74 | 1955-1966 | |
| 8 | Madison Bumgarner | 1.77 | 2011-2023 | |
| 8 | Smith Smith | 1.77 | 2004-2017 | |
| 10 | Cole Hamels | 1.99 | 2007-2022 | |
| 11 | Matthew Boyd# | 2.05 | 2019-2025 | |
| 11 | Jon Niese | 2.05 | 2009-2016 | |
| 13 | Jaime Garcia | 2.23 | 2011-2017 | |
| 14 | Hyun-Jin Ryu | 2.25 | 2013-2023 | |
| 15 | Carlos Carrasco | 2.26 | 2010-2023 | |
| 16 | Stephen Strasburg# | 2.27 | 2010-2025 | |
| 17 | Adam Wainwright | 2.37 | 2004-2023 | |
| 18 | Kyle Hendricks# | 2.41 | 2016-2024 | |
| 19 | Miles Mikolas# | 2.44 | 2010-2025 | |
| 19 | Walker Buehler# | 2.44 | 2019-2025 | |
| 19 | Corbin Burnes# | 2.44 | 2020-2025 | |
| 22 | Michael Pineda | 2.48 | 2011-2023 | |
| 23 | David Price | 2.55 | 2009-2023 | |
| 24 | Catfish Hunter | 2.56 | 1965-1976 | |
| 25 | Johnny Cueto | 2.57 | 2010-2023 | |
| 26 | Justin Verlander# | 2.60 | 2007-2025 | |
| 27 | Chris Archer | 2.63 | 2012-2023 | |
| 28 | Charlie Morton# | 2.65 | 2010-2025 | |
| 29 | Logan Webb# | 2.67 | 2015-2025 | |
| 30 | Chris Jones | 2.70 | 2010-2012 | |
| 31 | Jose Quintana# | 2.74 | 2013-2025 | |
| 32 | Matt Moore# | 2.84 | 2012-2025 | |
| 33 | Ross Detwiler | 2.97 | 2011-2023 | |
| 33 | Julio Urias# | 2.97 | 2018-2023 | |
| 35 | Aaron Nola# | 3.06 | 2015-2025 | |
| 36 | Max Scherzer# | 3.08 | 2009-2025 | |
| 37 | Lance McCullers Jr.# | 3.13 | 2016-2025 | |
| 38 | Shane McClanahan# | 3.18 | 2023-2025 | |
| 39 | German Marquez# | 3.19 | 2018-2025 | |
| 40 | Clayton Kershaw# | 3.28 | 2009-2025 | |
| 41 | Gerrit Cole# | 3.36 | 2012-2025 | |
| 42 | Nathan Eovaldi# | 3.38 | 2012-2025 | |
| 43 | Marcus Stroman# | 3.39 | 2015-2024 | |
| 44 | Jeurys Familia | 3.43 | 2010-2022 | |
| 45 | Dylan Cease# | 3.45 | 2015-2025 | |
| 46 | Shohei Ohtani# | 3.48 | 2018-2025 | |
| 47 | Blake Snell# | 3.64 | 2012-2025 | |
| 48 | Tyler Mahle# | 3.79 | 2017-2025 | |
| 49 | Pablo Lopez# | 3.81 | 2021-2025 | |
| 50 | Zack Wheeler# | 3.93 | 2010-2025 | |
| 51 | Chad Bettis | 4.02 | 2012-2019 | |
| 52 | Trevor Bauer | 4.11 | 2012-2023 | |
| 53 | Yu Darvish# | 4.14 | 2012-2025 | |
| 54 | Wade Davis | 4.18 | 2009-2020 | |
| 55 | Gio Gonzalez | 4.33 | 2010-2022 | |
| 56 | Edinson Volquez | 4.54 | 2008-2020 | |
| 57 | Carlos Rodon# | 4.55 | 2015-2025 | |
| 58 | Jake Odorizzi | 4.58 | 2012-2023 | |
| 59 | Craig Kimbrel# | 4.75 | 2011-2025 | |
| 60 | Derek Holland | 5.45 | 2010-2019 | |
| 61 | Freddy Peralta# | 5.67 | 2019-2025 | |
| 62 | Dellin Betances | 6.06 | 2011-2021 | |
| 63 | Ryan Pressley | 6.34 | 2010-2012 |
