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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OSLG | YEAR | Open Postseason Career Leaderboard |
|---|---|---|---|---|
| 1 | Jackson Kowar# | .1781 | 2020 | |
| 2 | Damien Magnifico# | .1923 | 2022 | |
| 3 | Jose Urena# | .2105 | 2024 | |
| 4 | Cal García# | .2143 | 2025 | |
| 5 | Cole Hamels | .2174 | 2021 | |
| 6 | Jim Bartlett# | .2234 | 2024 | |
| 7 | Matt Wisler# | .2333 | 2016 | |
| 8 | Sonny Gray# | .2404 | 2017 | |
| 9 | Charles King# | .2466 | 2025 | |
| 10 | Evan Scribner | .2500 | 2021 | |
| 10 | Masahiro Tanaka | .2500 | 2018 | |
| 10 | Jake Arrieta | .2500 | 2015 | |
| 13 | Ethan Small# | .2676 | 2025 | |
| 14 | Jose Fernandez# | .2736 | 2018 | |
| 15 | William Heflin# | .2794 | 2025 | |
| 16 | Matt Wisler# | .2805 | 2017 | |
| 17 | Alex Wood# | .2821 | 2017 | |
| 18 | Francisco Liriano | .2833 | 2015 | |
| 19 | Marcus Stroman# | .2844 | 2019 | |
| 20 | Anthony Molina# | .2875 | 2025 | |
| 21 | Joe Gray# | .2987 | 2023 | |
| 22 | Matt Wisler# | .3000 | 2022 | |
| 23 | Daniel Norris | .3030 | 2016 | |
| 24 | Aaron Blair# | .3053 | 2024 | |
| 25 | Cole Hamels | .3056 | 2015 | |
| 26 | Jake Thompson# | .3067 | 2019 | |
| 27 | Zach Petrick# | .3100 | 2023 | |
| 28 | Cole Hamels | .3176 | 2016 | |
| 29 | Zack Greinke | .3208 | 2016 | |
| 30 | Marcus Stroman# | .3258 | 2021 | |
| 31 | Cole Irvin# | .3281 | 2021 | |
| 32 | Chris Sale# | .3284 | 2017 | |
| 33 | Noah Syndergaard# | .3333 | 2019 | |
| 34 | Alex Reyes# | .3368 | 2025 | |
| 35 | Carlos Rodon# | .3385 | 2022 | |
| 36 | Toby Kelly# | .3407 | 2025 | |
| 37 | Blake Snell# | .3421 | 2023 | |
| 37 | Chris Sale# | .3421 | 2022 | |
| 37 | Marcus Stroman# | .3421 | 2015 | |
| 40 | Danny Duffy | .3433 | 2023 | |
| 41 | Jose Urena# | .3471 | 2025 | |
| 41 | Anthony Molina# | .3471 | 2024 | |
| 43 | Archie Bradley | .3483 | 2015 | |
| 44 | Tyler Glasnow# | .3529 | 2018 | |
| 45 | Javier Medina# | .3548 | 2023 | |
| 45 | Jerad Eickhoff# | .3548 | 2024 | |
| 47 | Jerad Eickhoff# | .3553 | 2019 | |
| 48 | Chris Sale# | .3559 | 2018 | |
| 49 | Chris Sale# | .3636 | 2016 | |
| 49 | Shelby Miller# | .3636 | 2024 | |
| 51 | Grayson Garvin# | .3659 | 2023 | |
| 52 | Matt Krook# | .3689 | 2024 | |
| 53 | Noah Syndergaard# | .3690 | 2020 | |
| 54 | Felix Hernandez | .3731 | 2016 | |
| 55 | Aaron Nola# | .3836 | 2021 | |
| 56 | Chris Sale# | .3855 | 2025 | |
| 57 | Max Scherzer | .3978 | 2017 | |
| 58 | Julio Urias# | .4000 | 2025 | |
| 59 | Matt Boyd# | .4030 | 2025 | |
| 60 | Jerad Eickhoff# | .4032 | 2020 | |
| 61 | Noah Murdock# | .4058 | 2024 | |
| 62 | Madison Bumgarner# | .4078 | 2015 | |
| 63 | Noah Syndergaard# | .4085 | 2015 | |
| 64 | Matt Wisler# | .4127 | 2018 | |
| 65 | Garrett Richards | .4265 | 2016 | |
| 66 | Hisashi Iwakuma | .4286 | 2016 | |
| 66 | Juan Hillman# | .4286 | 2023 | |
| 68 | Gerrit Cole | .4342 | 2015 | |
| 69 | Matt Krook# | .4382 | 2023 | |
| 70 | Kensaku Yamaguchi# | .4454 | 2024 | |
| 71 | Zach Petrick# | .4457 | 2024 | |
| 72 | Jake Thompson# | .4531 | 2021 | |
| 73 | Aaron Blair# | .4630 | 2023 | |
| 74 | Zack Greinke | .4681 | 2015 | |
| 75 | Takahiro Norimoto# | .4769 | 2021 | |
| 76 | Ben Jordan# | .4776 | 2024 | |
| 77 | Masahiro Tanaka | .4821 | 2017 | |
| 78 | Noah Murdock# | .4845 | 2025 | |
| 79 | Reggie Lawson# | .5000 | 2020 | |
| 80 | Sonny Gray# | .5070 | 2018 | |
| 81 | Takahiro Norimoto# | .5143 | 2020 | |
| 82 | Ben Jordan# | .5248 | 2025 | |
| 83 | Nick Pratto# | .5294 | 2025 | |
| 84 | Stephen Strasburg | .5368 | 2017 | |
| 85 | Robby Stone# | .5405 | 2023 | |
| 86 | Jake Arrieta | .5570 | 2016 | |
| 87 | Sandy Koufax# | .5581 | 2024 | |
| 88 | Sonny Gray# | .5733 | 2016 | |
| 89 | Jacob deGrom | .5758 | 2015 | |
| 90 | Sandy Koufax# | .7303 | 2023 |
