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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alex Jackson | 2018-2020 | 0 | 0 | .000 | 0.00 | 1 | 0 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 1 | 1 |
| Andre Jackson | 2021-2023 | 12 | 12 | .500 | 4.60 | 53 | 41 | 0 | 0 | 1 | 248.1 | 237 | 127 | 22 | 143 | 227 |
| Jay Jackson | 2014-2014 | 8 | 3 | .727 | 4.91 | 35 | 12 | 0 | 0 | 0 | 113.2 | 111 | 62 | 14 | 51 | 106 |
| Justin Jackson | 2014-2016 | 3 | 2 | .600 | 5.85 | 46 | 0 | 0 | 0 | 1 | 75.1 | 86 | 49 | 8 | 64 | 35 |
| Christian James | 2021-2021 | 4 | 10 | .286 | 4.91 | 24 | 24 | 0 | 0 | 0 | 132.0 | 122 | 72 | 8 | 81 | 87 |
| Jared Janczak | 2022-2023 | 1 | 1 | .500 | 5.01 | 12 | 0 | 0 | 0 | 0 | 23.1 | 23 | 13 | 2 | 13 | 28 |
| Jordan Jankowski | 2016-2017 | 6 | 3 | .667 | 5.07 | 60 | 0 | 0 | 0 | 1 | 104.2 | 123 | 59 | 12 | 63 | 106 |
| Mickey Jannis | 2020-2020 | 3 | 10 | .231 | 6.97 | 23 | 21 | 0 | 0 | 0 | 112.1 | 165 | 87 | 14 | 53 | 49 |
| Myles Jaye | 2016-2018 | 4 | 4 | .500 | 7.89 | 13 | 13 | 0 | 0 | 0 | 59.1 | 71 | 52 | 8 | 40 | 48 |
| Daulton Jefferies | 2019-2019 | 4 | 4 | .500 | 4.42 | 19 | 8 | 0 | 0 | 2 | 59.0 | 58 | 29 | 4 | 17 | 38 |
| Zach Jemiola | 2017-2017 | 2 | 1 | .667 | 5.20 | 5 | 5 | 0 | 0 | 0 | 27.2 | 31 | 16 | 3 | 7 | 12 |
| Tyrell Jenkins | 2016-2016 | 2 | 1 | .667 | 4.09 | 50 | 0 | 0 | 0 | 2 | 55.0 | 61 | 25 | 6 | 27 | 44 |
| Jason Jester | 2016-2018 | 2 | 8 | .200 | 4.08 | 74 | 0 | 0 | 0 | 15 | 117.0 | 93 | 53 | 13 | 77 | 116 |
| Jake Jewell | 2019-2023 | 7 | 4 | .636 | 5.11 | 96 | 0 | 0 | 0 | 7 | 119.2 | 123 | 68 | 16 | 72 | 106 |
| Johendi Jiminian | 2013-2017 | 1 | 0 | 1.000 | 4.87 | 13 | 0 | 0 | 0 | 0 | 20.1 | 19 | 11 | 1 | 19 | 14 |
| Ulises Joaquin | 2017-2017 | 0 | 0 | .000 | 6.67 | 14 | 0 | 0 | 0 | 0 | 27.0 | 33 | 20 | 4 | 8 | 21 |
| Brian Johnson | 2023-2023 | 1 | 1 | .500 | 7.36 | 18 | 0 | 0 | 0 | 1 | 29.1 | 48 | 24 | 6 | 15 | 21 |
| Chase Johnson | 2019-2021 | 0 | 0 | .000 | 6.84 | 18 | 0 | 0 | 0 | 1 | 26.1 | 32 | 20 | 2 | 13 | 21 |
| Cole Johnson | 2016-2016 | 2 | 5 | .286 | 7.43 | 10 | 10 | 0 | 0 | 0 | 49.2 | 47 | 41 | 6 | 40 | 42 |
| Erik Johnson | 2017-2017 | 0 | 0 | .000 | 3.60 | 1 | 1 | 0 | 0 | 0 | 5.0 | 4 | 2 | 2 | 2 | 2 |
| Jeff Johnson | 2015-2017 | 5 | 4 | .556 | 3.15 | 84 | 0 | 0 | 0 | 4 | 120.0 | 116 | 42 | 6 | 73 | 121 |
| Jordan Johnson | 2017-2017 | 0 | 1 | .000 | 16.20 | 1 | 1 | 0 | 0 | 0 | 3.1 | 5 | 6 | 3 | 3 | 2 |
| Michael Johnson | 2019-2020 | 3 | 7 | .300 | 5.08 | 43 | 0 | 0 | 0 | 0 | 62.0 | 71 | 35 | 6 | 34 | 30 |
| Seth Johnson | 2023-2023 | 0 | 1 | .000 | 13.50 | 1 | 1 | 0 | 0 | 0 | 4.2 | 8 | 7 | 3 | 5 | 1 |
| Steven Johnson | 2013-2017 | 31 | 20 | .608 | 4.28 | 113 | 57 | 0 | 0 | 6 | 403.2 | 379 | 192 | 44 | 183 | 390 |
| Tyler Johnson | 2019-2021 | 8 | 6 | .571 | 6.08 | 120 | 3 | 0 | 0 | 38 | 131.2 | 135 | 89 | 24 | 77 | 168 |
| Eric Jokisch | 2019-2019 | 6 | 2 | .750 | 5.22 | 27 | 1 | 0 | 0 | 1 | 58.2 | 74 | 34 | 9 | 23 | 29 |
| Devin Jones | 2013-2016 | 14 | 13 | .519 | 5.05 | 58 | 38 | 0 | 0 | 3 | 217.1 | 231 | 122 | 28 | 133 | 146 |
| Hayden Jones | 2017-2017 | 0 | 0 | .000 | 6.75 | 11 | 0 | 0 | 0 | 0 | 14.2 | 19 | 11 | 0 | 11 | 5 |
| John Jones | 2020-2020 | 0 | 0 | .000 | 54.00 | 1 | 0 | 0 | 0 | 0 | 0.1 | 2 | 2 | 1 | 1 | 0 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Jordan Jones | 2023-2023 | 2 | 2 | .500 | 4.00 | 9 | 9 | 0 | 0 | 0 | 45.0 | 49 | 20 | 6 | 27 | 39 |
| Felix Jorge | 2016-2021 | 15 | 17 | .469 | 5.36 | 51 | 50 | 1 | 0 | 1 | 272.0 | 318 | 162 | 46 | 93 | 156 |
| Taylor Jungmann | 2013-2019 | 3 | 8 | .273 | 7.36 | 23 | 23 | 0 | 0 | 0 | 107.2 | 125 | 88 | 18 | 93 | 83 |
| Janson Junk | 2023-2023 | 0 | 2 | .000 | 7.06 | 4 | 4 | 0 | 0 | 0 | 21.2 | 35 | 17 | 2 | 12 | 13 |
