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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Drew Jackson | 2016-2017 | 3 | 2 | .600 | 5.89 | 33 | 0 | 0 | 0 | 9 | 36.2 | 32 | 24 | 6 | 34 | 63 |
| Justin Jackson | 2017-2017 | 5 | 0 | 1.000 | 6.14 | 30 | 0 | 0 | 0 | 1 | 51.1 | 47 | 35 | 4 | 39 | 54 |
| Zach Jackson | 2018-2018 | 0 | 0 | .000 | 11.12 | 10 | 0 | 0 | 0 | 0 | 11.1 | 20 | 14 | 5 | 17 | 7 |
| Justin Jacome | 2016-2016 | 2 | 2 | .500 | 4.33 | 12 | 12 | 0 | 0 | 0 | 52.0 | 36 | 25 | 3 | 41 | 63 |
| Ricky Jacquez | 2015-2017 | 5 | 3 | .625 | 5.79 | 52 | 0 | 0 | 0 | 3 | 79.1 | 66 | 51 | 8 | 54 | 111 |
| Christian James | 2018-2018 | 5 | 2 | .714 | 3.84 | 24 | 13 | 0 | 0 | 2 | 65.2 | 42 | 28 | 5 | 56 | 103 |
| Drey Jameson | 2020-2020 | 0 | 0 | .000 | 12.00 | 6 | 0 | 0 | 0 | 2 | 6.0 | 6 | 8 | 2 | 7 | 9 |
| Steve Janas | 2015-2015 | 4 | 2 | .667 | 6.17 | 33 | 0 | 0 | 0 | 1 | 46.2 | 51 | 32 | 6 | 40 | 69 |
| Hyun-seok Jang | 2025-2025 | 0 | 0 | .000 | 29.45 | 7 | 0 | 0 | 0 | 0 | 7.1 | 18 | 24 | 1 | 24 | 10 |
| Mickey Jannis | 2016-2016 | 0 | 0 | .000 | 10.22 | 14 | 0 | 0 | 0 | 1 | 12.1 | 13 | 14 | 1 | 13 | 17 |
| Bryce Jarvis | 2022-2022 | 2 | 6 | .250 | 6.91 | 14 | 9 | 0 | 0 | 0 | 41.2 | 48 | 32 | 9 | 42 | 58 |
| Justin Jarvis | 2023-2023 | 1 | 1 | .500 | 4.35 | 5 | 0 | 0 | 0 | 0 | 10.1 | 8 | 5 | 2 | 5 | 16 |
| Oliver Jaskie | 2022-2022 | 6 | 1 | .857 | 2.15 | 11 | 11 | 0 | 0 | 0 | 67.0 | 46 | 16 | 4 | 35 | 73 |
| Madison Jeffrey | 2022-2024 | 1 | 0 | 1.000 | 3.04 | 44 | 0 | 0 | 0 | 12 | 53.1 | 29 | 18 | 6 | 33 | 88 |
| Zach Jemiola | 2013-2016 | 4 | 3 | .571 | 5.52 | 56 | 0 | 0 | 0 | 2 | 62.0 | 68 | 38 | 6 | 45 | 69 |
| Bryce Jenkins | 2025-2025 | 1 | 1 | .500 | 11.37 | 5 | 0 | 0 | 0 | 0 | 6.1 | 9 | 8 | 2 | 6 | 12 |
| Tyrell Jenkins | 2013-2013 | 1 | 1 | .500 | 6.75 | 4 | 4 | 0 | 0 | 0 | 18.2 | 27 | 14 | 3 | 10 | 25 |
| Miguel D. Jerez | 2020-2020 | 0 | 6 | .000 | 12.41 | 11 | 11 | 0 | 0 | 0 | 29.0 | 44 | 40 | 6 | 29 | 19 |
| Bud Jeter | 2016-2016 | 0 | 2 | .000 | 8.10 | 4 | 4 | 0 | 0 | 0 | 16.2 | 21 | 15 | 2 | 17 | 23 |
| Jackson Jobe | 2023-2023 | 1 | 4 | .200 | 8.74 | 10 | 10 | 0 | 0 | 0 | 34.0 | 38 | 33 | 5 | 41 | 40 |
| Ben Johnson | 2025-2025 | 0 | 0 | .000 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0.1 | 2 | 0 | 0 | 1 | 0 |
| Bryar Johnson | 2019-2023 | 1 | 2 | .333 | 7.03 | 11 | 2 | 0 | 0 | 0 | 24.1 | 27 | 19 | 6 | 23 | 36 |
| Drasen Johnson | 2017-2017 | 0 | 0 | .000 | 7.36 | 1 | 0 | 0 | 0 | 0 | 3.2 | 0 | 3 | 0 | 6 | 6 |
| Hobbs Johnson | 2014-2017 | 6 | 6 | .500 | 4.77 | 41 | 17 | 0 | 0 | 1 | 128.1 | 132 | 68 | 18 | 87 | 159 |
| Jake Johnson | 2018-2019 | 3 | 0 | 1.000 | 8.07 | 27 | 0 | 0 | 0 | 0 | 32.1 | 42 | 29 | 6 | 47 | 24 |
| Jeff Johnson | 2019-2019 | 3 | 0 | 1.000 | 11.64 | 14 | 0 | 0 | 0 | 0 | 19.1 | 33 | 25 | 4 | 20 | 7 |
| Jimmy Johnson | 2018-2020 | 1 | 2 | .333 | 10.66 | 29 | 0 | 0 | 0 | 0 | 39.2 | 57 | 47 | 13 | 44 | 21 |
| Marcus Johnson | 2024-2024 | 1 | 6 | .143 | 4.50 | 13 | 11 | 0 | 0 | 2 | 54.0 | 51 | 27 | 9 | 20 | 65 |
| Marques Johnson | 2023-2025 | 3 | 1 | .750 | 5.17 | 8 | 0 | 0 | 0 | 0 | 15.2 | 14 | 9 | 2 | 10 | 23 |
| Nicholas Johnson | 2019-2024 | 9 | 7 | .562 | 4.62 | 109 | 0 | 0 | 0 | 6 | 136.1 | 129 | 70 | 26 | 91 | 194 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Preston Johnson | 2024-2024 | 3 | 4 | .429 | 7.74 | 14 | 14 | 0 | 0 | 0 | 50.0 | 39 | 43 | 9 | 61 | 71 |
| Steven Johnson | 2018-2018 | 0 | 1 | .000 | 18.00 | 2 | 0 | 0 | 0 | 0 | 3.0 | 4 | 6 | 1 | 4 | 2 |
| Tyler Johnson | 2020-2021 | 0 | 2 | .000 | 5.85 | 13 | 0 | 0 | 0 | 0 | 20.0 | 28 | 13 | 4 | 20 | 26 |
| Tyler Johnson | 2023-2023 | 1 | 0 | 1.000 | 2.61 | 5 | 0 | 0 | 0 | 0 | 10.1 | 6 | 3 | 0 | 4 | 17 |
| LeBarron Johnson Jr. | 2025-2025 | 0 | 0 | .000 | 6.75 | 1 | 0 | 0 | 0 | 0 | 4.0 | 3 | 3 | 2 | 1 | 4 |
| Chase Johnson-Mullins | 2017-2017 | 1 | 2 | .333 | 4.25 | 38 | 0 | 0 | 0 | 0 | 29.2 | 22 | 14 | 2 | 16 | 38 |
| Eric Jokisch | 2019-2019 | 7 | 1 | .875 | 1.94 | 12 | 9 | 1 | 0 | 0 | 60.1 | 38 | 13 | 1 | 17 | 46 |
| Charles Jones | 2018-2020 | 0 | 0 | .000 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0.1 | 1 | 0 | 0 | 1 | 0 |
| Christian Jones | 2014-2014 | 2 | 1 | .667 | 6.67 | 18 | 2 | 0 | 0 | 1 | 28.1 | 27 | 21 | 1 | 26 | 27 |
| Hayden Jones | 2017-2018 | 0 | 5 | .000 | 11.68 | 17 | 0 | 0 | 0 | 0 | 24.2 | 37 | 32 | 5 | 33 | 23 |
| Kyle Jones | 2023-2025 | 8 | 3 | .727 | 4.44 | 20 | 13 | 0 | 0 | 1 | 79.0 | 63 | 39 | 11 | 50 | 90 |
| Nick Jones | 2015-2017 | 5 | 0 | 1.000 | 5.94 | 35 | 0 | 0 | 0 | 3 | 53.0 | 46 | 35 | 6 | 44 | 82 |
| Penn Jones | 2022-2024 | 5 | 3 | .625 | 3.75 | 45 | 0 | 0 | 0 | 23 | 48.0 | 38 | 20 | 6 | 27 | 71 |
| Rodarrick Jones | 2013-2016 | 1 | 2 | .333 | 8.38 | 32 | 0 | 0 | 0 | 3 | 48.1 | 55 | 45 | 7 | 44 | 61 |
| Will Jones | 2017-2019 | 0 | 2 | .000 | 11.20 | 27 | 0 | 0 | 0 | 0 | 27.1 | 43 | 34 | 3 | 38 | 23 |
| Zachary Jones | 2013-2015 | 9 | 1 | .900 | 8.05 | 39 | 2 | 0 | 0 | 1 | 50.1 | 51 | 45 | 6 | 58 | 58 |
| Dylan Jordan | 2025-2025 | 1 | 0 | 1.000 | 9.37 | 9 | 1 | 0 | 0 | 1 | 16.1 | 20 | 17 | 4 | 21 | 21 |
| Zach Joyce | 2024-2024 | 0 | 0 | .000 | 2.84 | 5 | 0 | 0 | 0 | 0 | 6.1 | 6 | 2 | 1 | 5 | 6 |
| Chandler Jozwiak | 2022-2022 | 0 | 1 | .000 | 3.00 | 6 | 6 | 0 | 0 | 0 | 24.0 | 21 | 8 | 0 | 16 | 37 |
| Daniel Juarez | 2024-2025 | 0 | 2 | .000 | 25.62 | 12 | 0 | 0 | 0 | 0 | 13.0 | 35 | 37 | 7 | 25 | 11 |
| Nicholas Judice | 2024-2025 | 1 | 2 | .333 | 10.50 | 5 | 2 | 0 | 0 | 0 | 12.0 | 19 | 14 | 3 | 11 | 14 |
| Jakob Junis | 2013-2015 | 7 | 10 | .412 | 8.06 | 35 | 30 | 0 | 0 | 0 | 121.2 | 159 | 109 | 14 | 93 | 120 |
| Janson Junk | 2019-2019 | 2 | 2 | .500 | 5.03 | 8 | 2 | 0 | 0 | 0 | 19.2 | 24 | 11 | 2 | 12 | 29 |
| Evan Justice | 2022-2025 | 0 | 0 | .000 | 6.28 | 12 | 0 | 0 | 0 | 2 | 14.1 | 25 | 10 | 4 | 21 | 18 |
