 |
|
|
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frank Jackson | 2033-2038 | 19 | 24 | .442 | 5.53 | 279 | 12 | 0 | 0 | 38 | 353.1 | 361 | 217 | 36 | 237 | 336 |
| Johnny Jackson | 2029-2030 | 1 | 1 | .500 | 5.24 | 19 | 0 | 0 | 0 | 0 | 22.1 | 26 | 13 | 4 | 6 | 23 |
| Ayub Jamal | 2032-2038 | 35 | 39 | .473 | 4.91 | 153 | 95 | 3 | 0 | 1 | 625.2 | 654 | 341 | 86 | 256 | 461 |
| Bruce James | 2027-2028 | 18 | 16 | .529 | 5.25 | 54 | 51 | 3 | 0 | 0 | 313.2 | 391 | 183 | 44 | 48 | 164 |
| Darren James | 2020-2026 | 14 | 29 | .326 | 5.51 | 277 | 31 | 0 | 0 | 9 | 408.2 | 443 | 250 | 75 | 163 | 280 |
| Jim James | 2030-2033 | 2 | 2 | .500 | 4.52 | 81 | 0 | 0 | 0 | 2 | 87.2 | 94 | 44 | 10 | 36 | 81 |
| John James | 2014-2015 | 3 | 8 | .273 | 10.01 | 19 | 19 | 0 | 0 | 0 | 80.0 | 131 | 89 | 23 | 49 | 40 |
| John Jarville | 2034-2039 | 55 | 35 | .611 | 4.82 | 241 | 134 | 5 | 0 | 2 | 881.2 | 1033 | 472 | 109 | 230 | 490 |
| Ray Jeffery | 2033-2038 | 45 | 51 | .469 | 5.44 | 163 | 130 | 7 | 0 | 8 | 821.1 | 951 | 496 | 123 | 295 | 609 |
| Randy Jeffes | 2031-2031 | 6 | 3 | .667 | 5.14 | 43 | 0 | 0 | 0 | 1 | 42.0 | 47 | 24 | 9 | 18 | 40 |
| Ken Jenkins | 2029-2030 | 3 | 4 | .429 | 5.28 | 84 | 0 | 0 | 0 | 1 | 76.2 | 95 | 45 | 8 | 47 | 59 |
| Kai-ge Jian | 2029-2032 | 9 | 5 | .643 | 4.17 | 154 | 0 | 0 | 0 | 6 | 159.2 | 174 | 74 | 9 | 99 | 123 |
| Gilberto Jiménez | 2036-2037 | 2 | 1 | .667 | 7.30 | 26 | 0 | 0 | 0 | 1 | 40.2 | 45 | 33 | 11 | 22 | 33 |
| José Jiménez | 2014-2017 | 46 | 28 | .622 | 4.44 | 136 | 100 | 5 | 1 | 3 | 666.1 | 716 | 329 | 104 | 176 | 432 |
| Bill Johnson | 2016-2016 | 2 | 4 | .333 | 8.50 | 62 | 0 | 0 | 0 | 5 | 72.0 | 98 | 68 | 19 | 58 | 29 |
| Francis Johnson | 2031-2033 | 10 | 16 | .385 | 5.49 | 173 | 27 | 0 | 0 | 6 | 272.1 | 283 | 166 | 27 | 185 | 243 |
| Jordan Johnson | 2026-2028 | 10 | 27 | .270 | 6.10 | 81 | 45 | 2 | 0 | 0 | 296.1 | 335 | 201 | 37 | 149 | 202 |
| Roy Johnson | 2041-2043 | 20 | 19 | .513 | 4.80 | 89 | 58 | 0 | 0 | 6 | 319.0 | 365 | 170 | 31 | 149 | 209 |
| Tristan Johnson | 2021-2021 | 2 | 1 | .667 | 7.22 | 52 | 0 | 0 | 0 | 0 | 52.1 | 67 | 42 | 10 | 32 | 53 |
| Johnny Johnston | 2021-2022 | 3 | 2 | .600 | 6.98 | 81 | 0 | 0 | 0 | 1 | 78.2 | 103 | 61 | 12 | 55 | 51 |
| Freddie Jonas | 2016-2016 | 4 | 4 | .500 | 6.11 | 15 | 15 | 0 | 0 | 0 | 81.0 | 107 | 55 | 7 | 35 | 40 |
| Michael Jones | 2016-2018 | 9 | 13 | .409 | 3.87 | 190 | 0 | 0 | 0 | 28 | 202.1 | 202 | 87 | 20 | 75 | 113 |
| Jamal Jordan | 2023-2025 | 20 | 15 | .571 | 5.03 | 197 | 0 | 0 | 0 | 48 | 205.2 | 232 | 115 | 29 | 77 | 157 |
| John Jordan | 2040-2043 | 25 | 27 | .481 | 5.06 | 96 | 69 | 2 | 1 | 0 | 428.2 | 510 | 241 | 31 | 156 | 324 |
| Kiminobu Jouda | 2025-2025 | 1 | 3 | .250 | 4.73 | 32 | 0 | 0 | 0 | 2 | 32.1 | 31 | 17 | 1 | 21 | 25 |
| Ryutaro Jouda | 2014-2017 | 38 | 26 | .594 | 5.05 | 87 | 87 | 5 | 1 | 0 | 520.1 | 600 | 292 | 59 | 205 | 278 |
| Takuji Jouon | 2019-2022 | 16 | 15 | .516 | 4.56 | 44 | 44 | 1 | 0 | 0 | 260.1 | 243 | 132 | 36 | 121 | 263 |
