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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 |
|---|---|---|---|---|---|---|---|---|---|
| Allan Jackson | 2012-2015 | .238 | 25 | 91 | 0 | 0 | 0 | 0.00 | 0 |
| Barrett Jackson | 2022-2024 | .000 | 0 | 0 | 7 | 4 | 16 | 2.36 | 87 |
| Brian Jackson | 2028-2028 | .231 | 3 | 18 | 0 | 0 | 0 | 0.00 | 0 |
| Ed Jackson | 2028-2028 | .369 | 19 | 37 | 0 | 0 | 0 | 0.00 | 0 |
| Kevin Jackson | 2013-2016 | .000 | 0 | 0 | 6 | 2 | 42 | 1.73 | 101 |
| Mal Jackson | 2028-2028 | .000 | 0 | 0 | 0 | 0 | 1 | 11.25 | 10 |
| Pat Jackson | 2023-2025 | .000 | 0 | 0 | 9 | 8 | 0 | 3.70 | 155 |
| Patrick Jackson | 2023-2025 | .000 | 0 | 0 | 5 | 6 | 3 | 6.30 | 90 |
| Ron Jackson | 2025-2027 | .000 | 0 | 0 | 7 | 11 | 0 | 4.56 | 166 |
| Steve Jackson | 2028-2028 | .000 | 0 | 0 | 2 | 2 | 0 | 4.10 | 50 |
| Ben Jacobs | 2025-2027 | .287 | 15 | 79 | 0 | 0 | 0 | 0.00 | 0 |
| Christian Jacobs | 2027-2028 | .000 | 0 | 0 | 6 | 5 | 5 | 6.63 | 95 |
| Coy Jacobs | 2021-2021 | .365 | 13 | 40 | 0 | 0 | 0 | 0.00 | 0 |
| John Jacobs | 2018-2018 | .000 | 0 | 0 | 2 | 1 | 10 | 0.89 | 31 |
| Johnny Jacobs | 2014-2017 | .000 | 0 | 0 | 13 | 15 | 0 | 3.70 | 212 |
| Todd Jacobs | 2016-2019 | .320 | 65 | 126 | 0 | 0 | 0 | 0.00 | 0 |
| Nathan Jacobson | 2025-2027 | .296 | 22 | 101 | 0 | 0 | 0 | 0.00 | 0 |
| Nick Jacobson | 2013-2014 | .271 | 22 | 61 | 0 | 0 | 0 | 0.00 | 0 |
| Stéphane Jacquemin | 2022-2024 | .298 | 27 | 104 | 0 | 0 | 0 | 0.00 | 0 |
| Mike Jahn | 2017-2020 | .314 | 18 | 70 | 0 | 0 | 0 | 0.00 | 0 |
| Allen James | 2023-2025 | .000 | 0 | 0 | 7 | 2 | 2 | 4.28 | 81 |
| Clayton James | 2025-2027 | .250 | 1 | 8 | 0 | 0 | 0 | 0.00 | 0 |
| George James | 2028-2028 | .232 | 7 | 18 | 0 | 0 | 0 | 0.00 | 0 |
| Jeffery James | 2012-2014 | .000 | 0 | 0 | 7 | 2 | 3 | 7.30 | 98 |
| Jerry James | 2018-2018 | .000 | 0 | 0 | 1 | 0 | 12 | 1.90 | 33 |
| Jim James | 2025-2027 | .257 | 36 | 122 | 0 | 0 | 0 | 0.00 | 0 |
| Markus James | 2028-2028 | .252 | 4 | 20 | 0 | 0 | 0 | 0.00 | 0 |
| Rob James | 2026-2027 | .000 | 0 | 0 | 6 | 9 | 0 | 5.55 | 98 |
| Spencer James | 2026-2028 | .000 | 0 | 0 | 7 | 1 | 3 | 4.59 | 80 |
| Terry James | 2024-2026 | .207 | 6 | 29 | 0 | 0 | 0 | 0.00 | 0 |
| Player | From-To | Avg | HR | RBI | W | L | SV | ERA | K |
| Vaughn James | 2028-2028 | .234 | 9 | 21 | 0 | 0 | 0 | 0.00 | 0 |
| Stanford Jamison | 2025-2027 | .263 | 9 | 50 | 0 | 0 | 0 | 0.00 | 0 |
| Joaquín Jaramillo | 2020-2020 | .365 | 9 | 26 | 0 | 0 | 0 | 0.00 | 0 |
| José Jaramillo | 2012-2012 | .381 | 13 | 33 | 0 | 0 | 0 | 0.00 | 0 |
| Juan Jaramillo | 2022-2024 | .326 | 11 | 49 | 0 | 0 | 0 | 0.00 | 0 |
| Archie Jarvis | 2025-2027 | .240 | 19 | 73 | 0 | 0 | 0 | 0.00 | 0 |
| Don Jefferson | 2028-2028 | .222 | 1 | 1 | 0 | 0 | 0 | 0.00 | 0 |
| Edward Jefferson | 2028-2028 | .000 | 0 | 0 | 2 | 2 | 0 | 5.68 | 56 |
| Jeremy Jefferson | 2028-2028 | .000 | 0 | 0 | 2 | 1 | 0 | 3.49 | 31 |
| Ray Jefferson | 2016-2017 | .000 | 0 | 0 | 6 | 8 | 0 | 4.29 | 101 |
| Larry Jeffries | 2027-2028 | .245 | 24 | 69 | 0 | 0 | 0 | 0.00 | 0 |
| Geoffrey Jellineck | 2012-2016 | .337 | 41 | 111 | 0 | 0 | 0 | 0.00 | 0 |
| Frederick Jenkins | 2025-2027 | .218 | 8 | 47 | 0 | 0 | 0 | 0.00 | 0 |
| Joe Jenkins | 2025-2027 | .000 | 0 | 0 | 0 | 7 | 1 | 6.04 | 81 |
| Josh Jenkins | 2028-2028 | .000 | 0 | 0 | 2 | 1 | 0 | 3.38 | 17 |
| Martin Jenkins | 2016-2016 | .273 | 4 | 17 | 0 | 0 | 0 | 0.00 | 0 |
| Michael Jenkins | 2025-2027 | .286 | 45 | 133 | 0 | 0 | 0 | 0.00 | 0 |
| Ryan Jenkins | 2012-2015 | .000 | 0 | 0 | 14 | 13 | 0 | 4.24 | 163 |
| Michael Jennings | 2026-2026 | .000 | 0 | 0 | 2 | 0 | 0 | 15.88 | 7 |
| Andrew Jensen | 2027-2028 | .221 | 5 | 15 | 0 | 0 | 0 | 0.00 | 0 |
| Lou Jensen | 2012-2016 | .247 | 27 | 100 | 0 | 0 | 0 | 0.00 | 0 |
| Tom Jerome | 2018-2019 | .000 | 0 | 0 | 5 | 8 | 0 | 3.25 | 121 |
| Aaron Jewell | 2013-2013 | .000 | 0 | 0 | 5 | 2 | 0 | 3.47 | 55 |
| Gonzalo Jiménez | 2027-2028 | .000 | 0 | 0 | 3 | 3 | 1 | 7.31 | 65 |
| José Jiménez | 2026-2028 | .234 | 11 | 44 | 0 | 0 | 0 | 0.00 | 0 |
| Steven Jiménez | 2023-2025 | .209 | 7 | 25 | 0 | 0 | 0 | 0.00 | 0 |
| Rob John | 2026-2028 | .000 | 0 | 0 | 1 | 3 | 2 | 6.40 | 99 |
| Weston Johns | 2025-2027 | .300 | 0 | 1 | 0 | 0 | 0 | 0.00 | 0 |
| Andrew Johnson | 2025-2027 | .000 | 0 | 0 | 8 | 12 | 0 | 3.36 | 205 |
| Carl Johnson | 2023-2025 | .190 | 5 | 27 | 0 | 0 | 0 | 0.00 | 0 |
| Player | From-To | Avg | HR | RBI | W | L | SV | ERA | K |
| Chris Johnson | 2018-2021 | .000 | 0 | 0 | 16 | 12 | 0 | 3.35 | 319 |
| David Johnson | 2028-2028 | .000 | 0 | 0 | 0 | 1 | 0 | 7.36 | 19 |
| Gerald Johnson | 2025-2027 | .258 | 9 | 56 | 0 | 0 | 0 | 0.00 | 0 |
| Jared Johnson | 2013-2015 | .224 | 11 | 35 | 0 | 0 | 0 | 0.00 | 0 |
| John Johnson | 2023-2025 | .272 | 11 | 38 | 0 | 0 | 0 | 0.00 | 0 |
| Kelly Johnson | 2027-2028 | .220 | 6 | 33 | 0 | 0 | 0 | 0.00 | 0 |
| Nolan Johnson | 2027-2028 | .200 | 4 | 19 | 0 | 0 | 0 | 0.00 | 0 |
| Quentin Johnson | 2023-2025 | .000 | 0 | 0 | 7 | 10 | 2 | 6.12 | 104 |
| Ron Johnson | 2017-2019 | .413 | 7 | 29 | 0 | 0 | 0 | 0.00 | 0 |
| Ryan Johnson | 2014-2015 | .299 | 9 | 56 | 0 | 0 | 0 | 0.00 | 0 |
| Walter Johnson | 2025-2027 | .203 | 7 | 43 | 0 | 0 | 0 | 0.00 | 0 |
| Bob Johnston | 2023-2025 | .000 | 0 | 0 | 11 | 7 | 0 | 3.08 | 199 |
| Chris Johnston | 2025-2027 | .225 | 10 | 42 | 0 | 0 | 0 | 0.00 | 0 |
| Chris Johnston | 2025-2027 | .252 | 31 | 93 | 0 | 0 | 0 | 0.00 | 0 |
| Chris Johnston | 2028-2028 | .000 | 0 | 0 | 0 | 2 | 0 | 5.95 | 18 |
| Dave Johnston | 2028-2028 | .000 | 0 | 0 | 6 | 1 | 0 | 3.12 | 48 |
| Jason Johnston | 2012-2012 | .000 | 0 | 0 | 0 | 0 | 15 | 2.55 | 23 |
| Josh Johnston | 2028-2028 | .000 | 0 | 0 | 0 | 0 | 0 | 6.53 | 36 |
| Joshua Johnston | 2017-2017 | .231 | 1 | 4 | 0 | 0 | 0 | 0.00 | 0 |
| Larry Johnston | 2024-2026 | .197 | 4 | 15 | 0 | 0 | 0 | 0.00 | 0 |
| Mitch Johnston | 2015-2017 | .000 | 0 | 0 | 10 | 10 | 0 | 5.87 | 179 |
| Paul Johnston | 2022-2024 | .000 | 0 | 0 | 17 | 4 | 0 | 1.18 | 234 |
| Paul Johnston | 2012-2013 | .000 | 0 | 0 | 16 | 4 | 0 | 2.90 | 193 |
| Roy Johnston | 2025-2027 | .295 | 18 | 65 | 0 | 0 | 0 | 0.00 | 0 |
| Steve Johnston | 2015-2015 | .100 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0 |
| Tom Johnston | 2012-2014 | .246 | 24 | 71 | 0 | 0 | 0 | 0.00 | 0 |
| Wes Johnston | 2012-2014 | .000 | 0 | 0 | 9 | 4 | 5 | 2.76 | 119 |
| Zak Johnston | 2028-2028 | .000 | 0 | 0 | 0 | 3 | 0 | 7.29 | 35 |
| Adrian Jones | 2027-2028 | .000 | 0 | 0 | 3 | 0 | 2 | 2.13 | 83 |
| Al Jones | 2016-2018 | .000 | 0 | 0 | 7 | 12 | 0 | 5.99 | 207 |
| Player | From-To | Avg | HR | RBI | W | L | SV | ERA | K |
| Alfred Jones | 2026-2028 | .000 | 0 | 0 | 3 | 3 | 1 | 6.13 | 101 |
| Anderson Jones | 2026-2028 | .000 | 0 | 0 | 4 | 2 | 0 | 4.66 | 40 |
| Billy Jones | 2024-2026 | .000 | 0 | 0 | 0 | 2 | 6 | 7.38 | 56 |
| Cody Jones | 2025-2027 | .220 | 8 | 51 | 0 | 0 | 0 | 0.00 | 0 |
| Damian Jones | 2028-2028 | .000 | 0 | 0 | 4 | 2 | 2 | 1.91 | 44 |
| David Jones | 2026-2028 | .239 | 6 | 19 | 0 | 0 | 0 | 0.00 | 0 |
| Don Jones | 2028-2028 | .000 | 0 | 0 | 1 | 3 | 0 | 9.73 | 33 |
| Jim Jones | 2025-2027 | .241 | 18 | 64 | 0 | 0 | 0 | 0.00 | 0 |
| John Jones | 2012-2016 | .000 | 0 | 0 | 19 | 10 | 0 | 2.56 | 452 |
| Kent Jones | 2025-2027 | .181 | 6 | 36 | 0 | 0 | 0 | 0.00 | 0 |
| Kyle Jones | 2027-2028 | .000 | 0 | 0 | 3 | 7 | 0 | 7.28 | 68 |
| Lee Jones | 2017-2019 | .352 | 3 | 42 | 0 | 0 | 0 | 0.00 | 0 |
| Leonard Jones | 2015-2017 | .000 | 0 | 0 | 14 | 10 | 0 | 3.70 | 184 |
| Max Jones | 2028-2028 | .261 | 0 | 5 | 0 | 0 | 0 | 0.00 | 0 |
| Mike Jones | 2012-2014 | .000 | 0 | 0 | 6 | 4 | 30 | 3.09 | 130 |
| Milton Jones | 2026-2028 | .181 | 8 | 30 | 0 | 0 | 0 | 0.00 | 0 |
| Nathan Jones | 2023-2025 | .000 | 0 | 0 | 1 | 3 | 1 | 7.49 | 55 |
| Nathan Jones | 2012-2014 | .368 | 50 | 122 | 0 | 0 | 0 | 0.00 | 0 |
| Peter Jones | 2026-2028 | .000 | 0 | 0 | 3 | 7 | 0 | 5.28 | 125 |
| Peter Jones | 2012-2014 | .274 | 20 | 80 | 0 | 0 | 0 | 0.00 | 0 |
| Richard Jones | 2027-2028 | .000 | 0 | 0 | 3 | 0 | 2 | 4.97 | 24 |
| Ron Jones | 2016-2016 | .000 | 0 | 0 | 3 | 0 | 8 | 4.50 | 32 |
| Roy Jones | 2027-2028 | .000 | 0 | 0 | 4 | 0 | 0 | 6.41 | 59 |
| Sean Jones | 2023-2025 | .000 | 0 | 0 | 5 | 2 | 16 | 5.31 | 85 |
| Simon Jones | 2024-2026 | .246 | 7 | 34 | 0 | 0 | 0 | 0.00 | 0 |
| Bob Jordan | 2026-2027 | .000 | 0 | 0 | 1 | 6 | 2 | 5.73 | 64 |
| Frank Jordan | 2025-2027 | .000 | 0 | 0 | 4 | 5 | 2 | 8.53 | 90 |
| Ron Jordan | 2025-2027 | .000 | 0 | 0 | 4 | 13 | 0 | 6.69 | 112 |
| Roy Jordan | 2018-2020 | .265 | 8 | 40 | 0 | 0 | 0 | 0.00 | 0 |
| Don Jorgensen | 2028-2028 | .364 | 1 | 5 | 0 | 0 | 0 | 0.00 | 0 |
| Player | From-To | Avg | HR | RBI | W | L | SV | ERA | K |
| Chris Joseph | 2014-2015 | .283 | 13 | 31 | 0 | 0 | 0 | 0.00 | 0 |
| Nathaniel Joseph | 2025-2027 | .302 | 11 | 53 | 0 | 0 | 0 | 0.00 | 0 |
| Todd Joseph | 2026-2027 | .000 | 0 | 0 | 3 | 4 | 11 | 1.65 | 45 |
| Michael Joss | 2025-2027 | .255 | 5 | 35 | 0 | 0 | 0 | 0.00 | 0 |
| Jeff Joyce | 2024-2026 | .202 | 5 | 29 | 0 | 0 | 0 | 0.00 | 0 |
| Sean Joyce | 2025-2027 | .180 | 2 | 12 | 0 | 0 | 0 | 0.00 | 0 |
| Bruce Joyner | 2014-2014 | .388 | 6 | 19 | 0 | 0 | 0 | 0.00 | 0 |
| Earl Joyner | 2018-2020 | .265 | 6 | 37 | 0 | 0 | 0 | 0.00 | 0 |
| Jeff Juárez | 2021-2021 | .246 | 9 | 21 | 0 | 0 | 0 | 0.00 | 0 |
| José Juárez | 2025-2027 | .270 | 18 | 75 | 0 | 0 | 0 | 0.00 | 0 |
| Jim Justice | 2028-2028 | .200 | 2 | 6 | 0 | 0 | 0 | 0.00 | 0 |
