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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | B9 | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Josh Tomlin | 1.48 | 2011-2022 | |
| 2 | George Kirby# | 1.63 | 2023-2025 | |
| 3 | Masahiro Tanaka | 1.88 | 2014-2021 | |
| 4 | Pablo Lopez# | 1.89 | 2021-2025 | |
| 5 | Zach Eflin# | 1.96 | 2018-2025 | |
| 6 | Shane McClanahan# | 1.98 | 2023-2025 | |
| 7 | Kyle Hendricks# | 1.99 | 2016-2024 | |
| 8 | Shane Bieber# | 2.00 | 2020-2025 | |
| 8 | Nestor Cortes# | 2.00 | 2018-2025 | |
| 8 | Rick Porcello | 2.00 | 2011-2021 | |
| 11 | Joe Musgrove# | 2.02 | 2012-2025 | |
| 12 | Henderson Alvarez | 2.07 | 2012-2016 | |
| 12 | Tommy Milone | 2.07 | 2012-2017 | |
| 14 | Sean Doolittle | 2.10 | 2011-2022 | |
| 15 | Smith Smith | 2.11 | 2002-2017 | |
| 16 | Chris Paddack# | 2.12 | 2020-2025 | |
| 16 | Jacob Degrom# | 2.12 | 2012-2025 | |
| 16 | A.J. Griffin | 2.12 | 2014-2017 | |
| 19 | Miles Mikolas# | 2.15 | 2010-2025 | |
| 20 | Doug Fister | 2.18 | 2011-2018 | |
| 20 | Mike Leake | 2.18 | 2010-2020 | |
| 20 | John Means# | 2.18 | 2020-2025 | |
| 23 | Bryse Wilson# | 2.19 | 2020-2025 | |
| 23 | Madison Bumgarner | 2.19 | 2011-2023 | |
| 25 | Ricky Nolasco | 2.23 | 2007-2017 | |
| 25 | Kevin Gausman# | 2.23 | 2013-2025 | |
| 27 | Phil Hughes | 2.25 | 2009-2018 | |
| 27 | Nathan Eovaldi# | 2.25 | 2012-2025 | |
| 29 | Anthony DeSclafani# | 2.26 | 2012-2024 | |
| 29 | Liam Hendriks# | 2.26 | 2012-2025 | |
| 31 | Koji Uehara | 2.27 | 2009-2018 | |
| 32 | Smith Smith | 2.28 | 2004-2017 | |
| 33 | Hyun-Jin Ryu | 2.29 | 2013-2023 | |
| 33 | Richard Bleier | 2.29 | 2010-2023 | |
| 33 | Jordan Zimmermann | 2.29 | 2010-2021 | |
| 36 | Tarik Skubal# | 2.31 | 2022-2025 | |
| 37 | Tommy Hunter | 2.32 | 2010-2020 | |
| 38 | Mike Soroka# | 2.37 | 2019-2025 | |
| 39 | Marcus Stroman# | 2.38 | 2015-2025 | |
| 39 | Seth Lugo# | 2.38 | 2012-2025 | |
| 41 | James Shields | 2.39 | 2007-2019 | |
| 41 | Cal Quantrill# | 2.39 | 2020-2025 | |
| 43 | Jason Vargas | 2.40 | 2010-2020 | |
| 43 | Walker Buehler# | 2.40 | 2019-2025 | |
| 43 | Corey Kluber | 2.40 | 2011-2023 | |
| 43 | Andrew Heaney# | 2.40 | 2018-2025 | |
| 47 | Jameson Taillon# | 2.42 | 2014-2025 | |
| 47 | Aaron Civale# | 2.42 | 2020-2025 | |
| 47 | Brett Anderson | 2.42 | 2010-2021 | |
| 50 | Matthew Boyd# | 2.43 | 2019-2025 | |
| 51 | Jose Berrios# | 2.44 | 2016-2025 | |
| 51 | Vance Worley | 2.44 | 2012-2018 | |
| 53 | Kris Medlen | 2.45 | 2010-2016 | |
| 53 | Catfish Hunter | 2.45 | 1965-1976 | |
| 53 | Gerrit Cole# | 2.45 | 2012-2025 | |
| 53 | Sean Manaea# | 2.45 | 2018-2025 | |
| 53 | Tanner Roark | 2.45 | 2010-2022 | |
| 58 | Luis Severino# | 2.46 | 2016-2025 | |
| 58 | Matt Andriese | 2.46 | 2012-2023 | |
| 60 | Yusmeiro Petit | 2.48 | 2009-2021 | |
| 60 | Chris Sale# | 2.48 | 2011-2025 | |
| 62 | Julio Urias# | 2.49 | 2018-2025 | |
| 62 | Justin Verlander# | 2.49 | 2007-2025 | |
| 64 | Max Scherzer# | 2.50 | 2009-2025 | |
| 64 | Matt Harvey | 2.50 | 2014-2021 | |
| 64 | Michael Pineda | 2.50 | 2011-2023 | |
| 67 | Clayton Kershaw# | 2.52 | 2009-2025 | |
| 68 | Casey Janssen | 2.54 | 2007-2016 | |
| 68 | David Price | 2.54 | 2009-2023 | |
| 70 | Kyle Kendrick | 2.55 | 2008-2015 | |
| 70 | Hisashi Iwakuma | 2.55 | 2013-2018 | |
| 72 | Triston McKenzie# | 2.56 | 2021-2025 | |
| 72 | Johnny Cueto | 2.56 | 2010-2023 | |
| 72 | Smith Smith | 2.56 | 2003-2018 | |
| 72 | Adam Wainwright | 2.56 | 2004-2023 | |
| 76 | Mat Latos | 2.59 | 2010-2016 | |
| 76 | Mark Melancon | 2.59 | 2010-2023 | |
| 78 | Matt Shoemaker | 2.61 | 2015-2021 | |
| 78 | Logan Webb# | 2.61 | 2015-2025 | |
| 80 | Luke Hochevar | 2.62 | 2010-2018 | |
| 81 | Jered Weaver | 2.64 | 2007-2017 | |
| 81 | Jon Niese | 2.64 | 2009-2016 | |
| 83 | Aaron Nola# | 2.65 | 2015-2025 | |
| 83 | Wei-Yin Chen | 2.65 | 2012-2018 | |
| 85 | Taijuan Walker# | 2.66 | 2012-2025 | |
| 86 | Robbie Erlin# | 2.68 | 2010-2023 | |
| 86 | Sergio Romo | 2.68 | 2010-2021 | |
| 86 | Kenta Maeda# | 2.68 | 2016-2025 | |
| 86 | Stephen Strasburg# | 2.68 | 2010-2025 | |
| 90 | Scott Baker | 2.69 | 2006-2014 | |
| 90 | Framber Valdez# | 2.69 | 2022-2025 | |
| 90 | Collin McHugh | 2.69 | 2010-2024 | |
| 90 | Zack Littell# | 2.69 | 2018-2025 | |
| 90 | Mike Minor | 2.69 | 2010-2023 | |
| 95 | Matt Belisle | 2.70 | 2004-2018 | |
| 95 | John Lackey | 2.70 | 2003-2017 | |
| 97 | Ivan Nova | 2.71 | 2011-2021 | |
| 97 | Michael Fulmer# | 2.71 | 2012-2025 | |
| 99 | Larry Dierker | 2.73 | 1964-1976 | |
| 99 | Sandy Alcantara# | 2.73 | 2018-2025 |
