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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | K9 | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | Dan Stevens# | 13.5 | 2022-2025 | |
| 2 | Carter Capps# | 11.9 | 2015-2025 | |
| 3 | Toby Kelly# | 11.7 | 2022-2025 | |
| 3 | Kensaku Yamaguchi# | 11.7 | 2023-2025 | |
| 5 | Matt Harvey | 9.9 | 2015-2023 | |
| 5 | Kelvin Herrera | 9.9 | 2015-2025 | |
| 7 | Jordan Walden# | 9.5 | 2015-2025 | |
| 7 | Alex Claudio# | 9.5 | 2015-2025 | |
| 9 | Anthony Molina# | 9.0 | 2022-2025 | |
| 10 | Jake Thompson# | 8.7 | 2018-2025 | |
| 11 | Jackson Kowar# | 8.6 | 2019-2025 | |
| 11 | Alex Reyes# | 8.6 | 2020-2025 | |
| 13 | Zack Greinke | 8.4 | 2015-2018 | |
| 14 | Stephen Strasburg | 8.2 | 2015-2021 | |
| 15 | Jose Fernandez# | 8.1 | 2015-2025 | |
| 16 | Ben Jordan# | 8.0 | 2021-2025 | |
| 16 | Sandy Koufax# | 8.0 | 1955-2025 | |
| 16 | Grayson Garvin# | 8.0 | 2017-2025 | |
| 16 | Alex Wood# | 8.0 | 2015-2025 | |
| 20 | Robby Stone# | 7.9 | 2020-2025 | |
| 20 | Matt Krook# | 7.9 | 2020-2025 | |
| 22 | Noah Syndergaard# | 7.7 | 2015-2025 | |
| 23 | Noah Murdock# | 7.5 | 2023-2025 | |
| 24 | Jerad Eickhoff# | 7.4 | 2016-2025 | |
| 24 | Jose Urena# | 7.4 | 2018-2025 | |
| 24 | Chris Sale# | 7.4 | 2015-2025 | |
| 27 | Joe Gray# | 7.3 | 2023-2025 | |
| 27 | Cole Hamels | 7.3 | 2015-2022 | |
| 29 | Carlos Martinez | 7.2 | 2015-2023 | |
| 29 | Aaron Blair# | 7.2 | 2020-2025 | |
| 31 | Matt Wisler# | 7.1 | 2016-2025 | |
| 32 | Sonny Gray# | 7.0 | 2015-2025 | |
| 32 | Kolby Allard# | 7.0 | 2020-2025 | |
| 34 | Aaron Nola# | 6.9 | 2015-2025 | |
| 35 | Takahiro Norimoto# | 6.7 | 2019-2025 | |
| 36 | Shelby Miller# | 6.5 | 2015-2025 | |
| 37 | Jake Arrieta | 6.4 | 2015-2021 | |
| 38 | Masahiro Tanaka | 6.1 | 2015-2024 | |
| 39 | Zach Petrick# | 5.9 | 2018-2025 | |
| 39 | Marcus Stroman# | 5.9 | 2015-2025 | |
| 41 | Madison Bumgarner# | 5.6 | 2015-2022 | |
| 42 | Aaron Slegers# | 4.7 | 2019-2025 | |
| 43 | Justin De Fratus# | 4.6 | 2015-2024 |
