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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WPCT | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Shane McClanahan# | .909 | 2023 | |
| 1 | Matt Harvey | .909 | 2015 | |
| 3 | Yu Darvish# | .864 | 2013 | |
| 4 | Gerrit Cole# | .850 | 2020 | |
| 5 | CC Sabathia | .846 | 2003 | |
| 6 | Robbie Ray# | .842 | 2019 | |
| 7 | Lucas Giolito# | .833 | 2020 | |
| 7 | Sandy Koufax | .833 | 1963 | |
| 7 | Hyun-Jin Ryu | .833 | 2017 | |
| 10 | Mat Latos | .826 | 2015 | |
| 11 | Matt Belisle | .824 | 2008 | |
| 12 | Zach Eflin# | .818 | 2023 | |
| 12 | Phil Hughes | .818 | 2012 | |
| 14 | Ubaldo Jimenez | .815 | 2012 | |
| 15 | Oliver Perez | .812 | 2005 | |
| 16 | Catfish Hunter | .808 | 1973 | |
| 16 | John Lackey | .808 | 2008 | |
| 18 | Nick Pivetta# | .800 | 2023 | |
| 18 | Masahiro Tanaka | .800 | 2019 | |
| 20 | David Price | .793 | 2015 | |
| 21 | Zac Gallen# | .792 | 2024 | |
| 21 | Sandy Koufax | .792 | 1964 | |
| 21 | Corbin Burnes# | .792 | 2024 | |
| 21 | John Danks | .792 | 2013 | |
| 25 | Koji Uehara | .789 | 2010 | |
| 25 | Zack Wheeler# | .789 | 2024 | |
| 25 | Shane Bieber# | .789 | 2022 | |
| 25 | Ricky Nolasco | .789 | 2010 | |
| 29 | Clayton Kershaw# | .786 | 2015 | |
| 30 | Matt Cain | .783 | 2012 | |
| 30 | Yu Darvish# | .783 | 2015 | |
| 32 | Luis Severino# | .773 | 2020 | |
| 32 | Jake Peavy | .773 | 2007 | |
| 32 | Shohei Ohtani# | .773 | 2019 | |
| 32 | Andrew Heaney# | .773 | 2020 | |
| 32 | Corbin Burnes# | .773 | 2022 | |
| 32 | Justin Verlander# | .773 | 2023 | |
| 38 | Freddy Peralta# | .769 | 2024 | |
| 38 | Aaron Harang | .769 | 2008 | |
| 38 | Framber Valdez# | .769 | 2024 | |
| 41 | Sandy Koufax | .765 | 1965 | |
| 41 | James Paxton# | .765 | 2020 | |
| 41 | Eric Berger | .765 | 2010 | |
| 41 | Nathan Eovaldi# | .765 | 2017 | |
| 41 | Chris Flexen# | .765 | 2022 | |
| 46 | Yu Darvish# | .762 | 2016 | |
| 46 | Jacob Degrom# | .762 | 2019 | |
| 46 | Ryne Nelson# | .762 | 2025 | |
| 46 | Neftali Feliz | .762 | 2012 | |
| 46 | Lucas Giolito# | .762 | 2021 | |
| 46 | Matt Garza | .762 | 2012 | |
| 46 | CC Sabathia | .762 | 2004 | |
| 53 | Felix Hernandez | .760 | 2006 | |
| 54 | Josh M. Johnson | .750 | 2012 | |
| 54 | Shohei Ohtani# | .750 | 2024 | |
| 54 | Johnny Antonelli | .750 | 1954 | |
| 54 | Catfish Hunter | .750 | 1972 | |
| 54 | Felix Hernandez | .750 | 2017 | |
| 54 | Danny Salazar | .750 | 2017 | |
| 54 | Luiz Gohara | .750 | 2019 | |
| 54 | Walker Buehler# | .750 | 2019 | |
| 54 | Sandy Koufax | .750 | 1966 | |
| 54 | Smith Smith | .750 | 2010 | |
| 54 | CC Sabathia | .750 | 2007 | |
| 54 | David Price | .750 | 2017 | |
| 54 | David Price | .750 | 2021 | |
| 54 | Jordan Montgomery# | .750 | 2024 | |
| 68 | Chris Paddack# | .739 | 2022 | |
| 68 | Matt Moore# | .739 | 2014 | |
| 70 | Taijuan Walker# | .737 | 2018 | |
| 70 | Clayton Kershaw# | .737 | 2018 | |
| 70 | Dylan Cease# | .737 | 2023 | |
| 70 | Justin Verlander# | .737 | 2021 | |
| 70 | Smith Smith | .737 | 2016 | |
| 70 | Blake Snell# | .737 | 2019 | |
| 70 | J.P. Howell | .737 | 2008 | |
| 70 | Franklin Morales | .737 | 2010 | |
| 70 | Kyle Gibson# | .737 | 2022 | |
| 79 | John Lamb | .733 | 2011 | |
| 79 | Kevin Gausman# | .733 | 2023 | |
| 79 | Bob Feller | .733 | 1951 | |
| 82 | Zack Wheeler# | .731 | 2019 | |
| 83 | Stephen Strasburg | .727 | 2014 | |
| 83 | Kyle Gibson# | .727 | 2016 | |
| 83 | Shane McClanahan# | .727 | 2024 | |
| 83 | Jhoulys Chacin | .727 | 2019 | |
| 83 | Rick Porcello | .727 | 2018 | |
| 83 | Mike Clevinger# | .727 | 2020 | |
| 83 | Bud Norris | .727 | 2015 | |
| 83 | Brad Keller# | .727 | 2019 | |
| 83 | Stephen Strasburg | .727 | 2012 | |
| 83 | Nathan Eovaldi# | .727 | 2022 | |
| 83 | Gerrit Cole# | .727 | 2018 | |
| 83 | Jameson Taillon# | .727 | 2019 | |
| 83 | Lance McCullers Jr.# | .727 | 2020 | |
| 96 | Tomoyuki Sugano# | .722 | 2025 | |
| 97 | CC Sabathia | .720 | 2009 | |
| 97 | Stephen Strasburg | .720 | 2013 | |
| 97 | Charlie Morton# | .720 | 2018 | |
| 97 | David Price | .720 | 2016 |
