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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jeremy Jackson | 2029-2029 | 0 | 0 | .000 | 18.00 | 2 | 0 | 0 | 0 | 0 | 4.0 | 10 | 8 | 1 | 5 | 7 |
| Rob Jackson | 2025-2026 | 4 | 3 | .571 | 4.76 | 21 | 21 | 0 | 0 | 0 | 85.0 | 77 | 45 | 8 | 46 | 92 |
| Joe Jacobs | 2026-2026 | 7 | 5 | .583 | 4.66 | 16 | 16 | 0 | 0 | 0 | 83.0 | 84 | 43 | 6 | 28 | 83 |
| Jon Jacobs | 2017-2020 | 7 | 4 | .636 | 5.33 | 33 | 10 | 0 | 0 | 1 | 101.1 | 101 | 60 | 12 | 53 | 119 |
| Wilson Jacobs | 2015-2016 | 16 | 6 | .727 | 3.12 | 32 | 32 | 0 | 0 | 0 | 196.1 | 163 | 68 | 20 | 64 | 237 |
| Charlie James | 2023-2023 | 0 | 0 | .000 | 1.64 | 7 | 0 | 0 | 0 | 1 | 11.0 | 7 | 2 | 0 | 9 | 11 |
| Jeremy James | 2021-2021 | 5 | 7 | .417 | 5.35 | 16 | 16 | 0 | 0 | 0 | 70.2 | 74 | 42 | 3 | 54 | 67 |
| Anastasio Jaramillo | 2022-2027 | 7 | 8 | .467 | 3.62 | 79 | 13 | 0 | 0 | 3 | 134.1 | 115 | 54 | 6 | 63 | 155 |
| Jake Jarvis | 2015-2017 | 7 | 1 | .875 | 2.88 | 57 | 0 | 0 | 0 | 3 | 65.2 | 51 | 21 | 3 | 27 | 81 |
| Mike Jeffreys | 2016-2016 | 0 | 0 | .000 | 2.45 | 6 | 0 | 0 | 0 | 0 | 11.0 | 5 | 3 | 0 | 3 | 14 |
| Al Jenkins | 2027-2029 | 8 | 18 | .308 | 6.81 | 43 | 42 | 0 | 0 | 0 | 186.1 | 208 | 141 | 13 | 111 | 199 |
| Brendan Jenkins | 2026-2028 | 3 | 1 | .750 | 6.49 | 33 | 2 | 0 | 0 | 2 | 77.2 | 88 | 56 | 12 | 66 | 91 |
| Greg Jenkins | 2029-2029 | 4 | 0 | 1.000 | 4.98 | 12 | 0 | 0 | 0 | 2 | 21.2 | 21 | 12 | 4 | 6 | 36 |
| Ken Jenkins | 2025-2027 | 3 | 5 | .375 | 7.12 | 31 | 8 | 0 | 0 | 8 | 60.2 | 77 | 48 | 6 | 48 | 62 |
| Dusty Jennings | 2021-2021 | 0 | 3 | .000 | 3.04 | 24 | 0 | 0 | 0 | 13 | 23.2 | 13 | 8 | 3 | 5 | 20 |
| Bud Jeter | 2015-2015 | 0 | 0 | .000 | 2.84 | 3 | 0 | 0 | 0 | 0 | 6.1 | 4 | 2 | 0 | 1 | 10 |
| Iván Jiménez | 2023-2024 | 4 | 5 | .444 | 5.14 | 45 | 0 | 0 | 0 | 12 | 42.0 | 34 | 24 | 1 | 36 | 47 |
| Manny Jiménez | 2022-2023 | 3 | 9 | .250 | 5.11 | 22 | 22 | 0 | 0 | 0 | 98.2 | 107 | 56 | 5 | 59 | 102 |
| Brandon Johnson | 2015-2016 | 0 | 1 | .000 | 5.68 | 37 | 0 | 0 | 0 | 1 | 44.1 | 41 | 28 | 2 | 24 | 52 |
| Dan Johnson | 2026-2026 | 4 | 2 | .667 | 5.66 | 8 | 8 | 0 | 0 | 0 | 49.1 | 43 | 31 | 5 | 29 | 73 |
| Jim Johnson | 2016-2016 | 0 | 0 | .000 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0.0 | 1 | 0 | 0 | 0 | 0 |
| Stan Johnson | 2026-2029 | 16 | 4 | .800 | 3.69 | 33 | 33 | 0 | 0 | 0 | 178.0 | 169 | 73 | 9 | 64 | 217 |
| Dave Johnston | 2017-2028 | 2 | 7 | .222 | 7.50 | 14 | 12 | 0 | 0 | 0 | 54.0 | 59 | 45 | 5 | 35 | 61 |
| Tynan Johnston | 2015-2017 | 1 | 2 | .333 | 6.35 | 4 | 4 | 0 | 0 | 0 | 22.2 | 25 | 16 | 2 | 11 | 21 |
| Al Jones | 2022-2024 | 9 | 3 | .750 | 4.97 | 43 | 0 | 0 | 0 | 2 | 114.0 | 111 | 63 | 9 | 56 | 131 |
| Hugh Jones | 2029-2029 | 0 | 0 | .000 | 18.69 | 5 | 0 | 0 | 0 | 0 | 8.2 | 17 | 18 | 3 | 10 | 12 |
| Jeff Jones | 2029-2029 | 2 | 2 | .500 | 6.48 | 15 | 0 | 0 | 0 | 0 | 33.1 | 37 | 24 | 1 | 26 | 32 |
| Jeremy Jones | 2027-2027 | 0 | 4 | .000 | 6.43 | 12 | 0 | 0 | 0 | 1 | 21.0 | 31 | 15 | 0 | 12 | 32 |
| Joe Jones | 2024-2024 | 3 | 1 | .750 | 2.36 | 24 | 0 | 0 | 0 | 1 | 42.0 | 30 | 11 | 2 | 14 | 62 |
| Kevin Jones | 2024-2026 | 7 | 13 | .350 | 6.09 | 34 | 28 | 0 | 0 | 0 | 130.0 | 167 | 88 | 4 | 87 | 115 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Reginald Jones | 2017-2017 | 5 | 4 | .556 | 4.52 | 17 | 10 | 0 | 0 | 2 | 65.2 | 67 | 33 | 3 | 29 | 65 |
| Tim Jones | 2020-2021 | 3 | 4 | .429 | 5.32 | 59 | 2 | 0 | 0 | 2 | 113.1 | 109 | 67 | 14 | 65 | 148 |
| Zach Jones | 2017-2017 | 3 | 7 | .300 | 4.64 | 16 | 12 | 0 | 0 | 2 | 77.2 | 74 | 40 | 7 | 32 | 71 |
| Dan Jordan | 2024-2025 | 3 | 3 | .500 | 5.06 | 22 | 0 | 0 | 0 | 0 | 58.2 | 48 | 33 | 6 | 32 | 73 |
| Doug Joseph | 2020-2020 | 0 | 0 | .000 | 4.91 | 1 | 1 | 0 | 0 | 0 | 3.2 | 5 | 2 | 0 | 3 | 3 |
| Jorge Juárez | 2021-2021 | 1 | 1 | .500 | 5.05 | 20 | 0 | 0 | 0 | 0 | 46.1 | 54 | 26 | 3 | 28 | 59 |
| José Juárez | 2021-2022 | 6 | 10 | .375 | 5.87 | 40 | 40 | 0 | 0 | 0 | 150.1 | 167 | 98 | 15 | 83 | 181 |
