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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Player | From-To | Avg | HR | RBI | W | L | SV | ERA | K |
|---|---|---|---|---|---|---|---|---|---|
| Andre Jackson | 2024-2025 | .000 | 0 | 0 | 6 | 8 | 0 | 5.44 | 104 |
| Drew Jackson | 2022-2023 | .266 | 12 | 34 | 0 | 0 | 0 | 0.00 | 0 |
| Jeremiah Jackson | 2020-2023 | .246 | 32 | 110 | 0 | 0 | 0 | 0.00 | 0 |
| Jhalan Jackson | 2019-2019 | .195 | 1 | 5 | 0 | 0 | 0 | 0.00 | 0 |
| Ryan Jackson | 2013-2018 | .275 | 0 | 38 | 0 | 0 | 0 | 0.00 | 0 |
| Alek Jacob | 2023-2025 | .000 | 0 | 0 | 7 | 7 | 46 | 3.67 | 95 |
| Eric Jagielo | 2016-2019 | .295 | 35 | 130 | 0 | 0 | 0 | 0.00 | 0 |
| David Jagoditsh | 2014-2015 | .000 | 0 | 0 | 2 | 0 | 1 | 12.33 | 54 |
| Jiwan James | 2013-2017 | .283 | 9 | 69 | 0 | 0 | 0 | 0.00 | 0 |
| Thomas Jankins | 2019-2022 | .000 | 0 | 0 | 10 | 12 | 0 | 5.80 | 100 |
| Travis Jankowski | 2014-2015 | .243 | 17 | 63 | 0 | 0 | 0 | 0.00 | 0 |
| Mike Jarvis | 2023-2025 | .271 | 34 | 129 | 0 | 0 | 0 | 0.00 | 0 |
| Oliver Jaskie | 2019-2019 | .000 | 0 | 0 | 1 | 0 | 0 | 5.82 | 5 |
| Griffin Jax | 2020-2022 | .000 | 0 | 0 | 3 | 4 | 1 | 4.04 | 46 |
| Tyler Jay | 2018-2025 | .000 | 0 | 0 | 6 | 4 | 10 | 5.14 | 70 |
| Luis Jean | 2020-2020 | .341 | 4 | 15 | 0 | 0 | 0 | 0.00 | 0 |
| Trey Jeans | 2020-2020 | .000 | 0 | 0 | 0 | 6 | 2 | 12.31 | 19 |
| Michael Jefferson | 2014-2016 | .000 | 0 | 0 | 7 | 5 | 3 | 8.46 | 53 |
| Jake Jekielek | 2025-2025 | .000 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0 |
| Ryan Jennings | 2025-2025 | .000 | 0 | 0 | 2 | 4 | 0 | 4.67 | 40 |
| Ryan Jensen | 2022-2025 | .000 | 0 | 0 | 22 | 21 | 7 | 3.66 | 363 |
| Kevin Jepsen | 2017-2017 | .000 | 0 | 0 | 0 | 0 | 0 | 6.35 | 18 |
| Williams Jerez | 2018-2019 | .000 | 0 | 0 | 1 | 2 | 1 | 4.67 | 53 |
| A.J. Jimenez | 2018-2019 | .315 | 2 | 11 | 0 | 0 | 0 | 0.00 | 0 |
| Carlos Jimenez | 2025-2025 | .000 | 0 | 0 | 0 | 2 | 0 | 5.17 | 17 |
| Leonardo Jimenez | 2023-2024 | .250 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0 |
| Luis Jimenez | 2013-2013 | .320 | 3 | 16 | 0 | 0 | 0 | 0.00 | 0 |
| Nick Jobst | 2018-2018 | .000 | 0 | 0 | 1 | 2 | 4 | 8.10 | 23 |
| MD Johnson | 2023-2025 | .000 | 0 | 0 | 10 | 10 | 0 | 6.61 | 112 |
| Osiris Johnson | 2023-2024 | .255 | 9 | 35 | 0 | 0 | 0 | 0.00 | 0 |
| Player | From-To | Avg | HR | RBI | W | L | SV | ERA | K |
| Pierce Johnson | 2018-2020 | .000 | 0 | 0 | 1 | 4 | 3 | 4.43 | 59 |
| Ryan Johnson | 2025-2025 | .182 | 1 | 1 | 0 | 0 | 0 | 0.00 | 0 |
| Seth Johnson | 2024-2024 | .000 | 0 | 0 | 1 | 2 | 0 | 4.56 | 24 |
| Sherman Johnson | 2018-2022 | .271 | 43 | 181 | 0 | 0 | 0 | 27.00 | 2 |
| Stephen Johnson | 2017-2018 | .000 | 0 | 0 | 4 | 2 | 2 | 4.87 | 62 |
| Reid Johnston | 2025-2025 | .000 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0 |
| Eric Jokisch | 2014-2018 | .000 | 0 | 0 | 38 | 25 | 3 | 4.90 | 387 |
| Chris Jones | 2016-2016 | .000 | 0 | 0 | 2 | 1 | 0 | 5.49 | 70 |
| Druw Jones | 2025-2025 | .270 | 14 | 64 | 0 | 0 | 0 | 0.00 | 0 |
| Jacoby Jones | 2017-2022 | .293 | 50 | 215 | 0 | 0 | 0 | 0.00 | 0 |
| Jahmai Jones | 2018-2021 | .339 | 46 | 196 | 0 | 0 | 0 | 0.00 | 0 |
| James Jones | 2014-2014 | .240 | 4 | 40 | 0 | 0 | 0 | 0.00 | 0 |
| Jared Jones | 2023-2025 | .000 | 0 | 0 | 9 | 11 | 0 | 5.07 | 127 |
| Mycal Jones | 2013-2015 | .283 | 8 | 64 | 0 | 0 | 0 | 0.00 | 0 |
| Nick Jones | 2025-2025 | .000 | 0 | 0 | 3 | 6 | 26 | 8.79 | 46 |
| Spencer Jones | 2024-2024 | .280 | 6 | 10 | 0 | 0 | 0 | 0.00 | 0 |
| Spencer Jones | 2020-2021 | .000 | 0 | 0 | 5 | 3 | 1 | 5.26 | 89 |
| Zachary Jones | 2018-2019 | .000 | 0 | 0 | 4 | 3 | 0 | 4.37 | 91 |
| Blaze Jordan | 2024-2024 | .304 | 13 | 66 | 0 | 0 | 0 | 0.00 | 0 |
| Mitchell Jordan | 2019-2020 | .000 | 0 | 0 | 1 | 1 | 0 | 4.15 | 7 |
| Tavian Josenberger | 2025-2025 | .299 | 7 | 54 | 0 | 0 | 0 | 0.00 | 0 |
| Jimmy Joyce | 2024-2025 | .000 | 0 | 0 | 16 | 21 | 0 | 6.04 | 226 |
| Ariel Jurado | 2020-2022 | .000 | 0 | 0 | 2 | 3 | 0 | 4.81 | 26 |
