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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Umarah Abdul-Quddus | 2025-2027 | 1 | 4 | .200 | 7.94 | 10 | 10 | 0 | 0 | 0 | 45.1 | 58 | 40 | 6 | 28 | 31 |
| Hidetada Abe | 2026-2027 | 16 | 9 | .640 | 3.83 | 37 | 37 | 0 | 0 | 0 | 202.0 | 170 | 86 | 19 | 122 | 234 |
| Sherwin Aberin | 2021-2027 | 13 | 12 | .520 | 2.70 | 155 | 0 | 0 | 0 | 43 | 170.0 | 123 | 51 | 19 | 67 | 278 |
| Jorge Abohbot | 2025-2026 | 4 | 7 | .364 | 5.45 | 25 | 18 | 0 | 0 | 0 | 105.2 | 130 | 64 | 13 | 47 | 55 |
| Sergio Abreu | 2021-2023 | 0 | 0 | .000 | 5.76 | 51 | 0 | 0 | 0 | 1 | 75.0 | 103 | 48 | 5 | 28 | 49 |
| Yohachi Adachi | 2026-2027 | 1 | 0 | 1.000 | 5.91 | 13 | 0 | 0 | 0 | 0 | 21.1 | 29 | 14 | 4 | 11 | 14 |
| J.R. Adams | 2015-2027 | 6 | 9 | .400 | 3.67 | 130 | 0 | 0 | 0 | 35 | 130.0 | 116 | 53 | 12 | 73 | 132 |
| Jason Adams | 2015-2027 | 29 | 16 | .644 | 4.04 | 110 | 60 | 1 | 0 | 4 | 405.2 | 420 | 182 | 38 | 144 | 283 |
| Jeff Adams | 2022-2026 | 15 | 9 | .625 | 6.11 | 92 | 27 | 0 | 0 | 0 | 252.0 | 330 | 171 | 35 | 106 | 204 |
| Musamba Adisa | 2026-2026 | 0 | 1 | .000 | 7.42 | 5 | 2 | 0 | 0 | 0 | 13.1 | 17 | 11 | 4 | 10 | 12 |
| Anupradana Agarkar | 2021-2025 | 12 | 6 | .667 | 2.46 | 141 | 0 | 0 | 0 | 60 | 153.2 | 132 | 42 | 11 | 57 | 196 |
| Daniel Agria | 2024-2024 | 0 | 0 | .000 | 5.28 | 30 | 0 | 0 | 0 | 0 | 44.1 | 53 | 26 | 6 | 31 | 22 |
| José Aguirre | 2026-2027 | 13 | 23 | .361 | 5.61 | 58 | 43 | 1 | 0 | 1 | 245.1 | 293 | 153 | 38 | 95 | 177 |
| Yin-reng Ai | 2025-2027 | 6 | 4 | .600 | 4.84 | 25 | 17 | 0 | 0 | 0 | 111.2 | 133 | 60 | 16 | 40 | 63 |
| Roy Aitken | 2026-2027 | 8 | 14 | .364 | 5.83 | 33 | 33 | 0 | 0 | 0 | 179.0 | 215 | 116 | 27 | 90 | 139 |
| Garland Akers | 2023-2027 | 16 | 14 | .533 | 5.64 | 143 | 34 | 0 | 0 | 4 | 370.1 | 417 | 232 | 57 | 158 | 326 |
| Jose Albertrani | 2026-2026 | 4 | 3 | .571 | 3.59 | 16 | 16 | 0 | 0 | 0 | 92.2 | 88 | 37 | 4 | 32 | 94 |
| Carlos Alejándrez | 2027-2027 | 0 | 1 | .000 | 5.87 | 13 | 0 | 0 | 0 | 0 | 23.0 | 29 | 15 | 9 | 6 | 13 |
| Bob Alexander | 2024-2027 | 25 | 25 | .500 | 5.17 | 82 | 82 | 1 | 0 | 0 | 457.2 | 506 | 263 | 74 | 226 | 395 |
| Ross Allan | 2023-2025 | 11 | 14 | .440 | 5.41 | 41 | 41 | 0 | 0 | 0 | 241.1 | 251 | 145 | 31 | 119 | 251 |
| Anthony Allen | 2012-2020 | 30 | 25 | .545 | 4.62 | 372 | 0 | 0 | 0 | 11 | 407.1 | 364 | 209 | 41 | 277 | 550 |
| Kenny Allen | 2023-2025 | 9 | 2 | .818 | 3.28 | 78 | 0 | 0 | 0 | 3 | 112.2 | 114 | 41 | 13 | 18 | 126 |
| Jeffrey Allison | 2020-2027 | 66 | 71 | .482 | 5.72 | 241 | 194 | 0 | 0 | 0 | 1103.0 | 1309 | 701 | 64 | 592 | 674 |
| Pablo Alomar | 2020-2027 | 7 | 15 | .318 | 4.57 | 131 | 17 | 0 | 0 | 56 | 203.0 | 221 | 103 | 8 | 115 | 129 |
| Román Alonzo | 2027-2027 | 2 | 3 | .400 | 4.15 | 14 | 14 | 0 | 0 | 0 | 78.0 | 79 | 36 | 13 | 20 | 64 |
| Steve Alston | 2017-2021 | 13 | 13 | .500 | 6.50 | 155 | 5 | 0 | 0 | 5 | 249.1 | 329 | 180 | 50 | 106 | 209 |
| Kris Altman | 2021-2025 | 1 | 0 | 1.000 | 4.43 | 11 | 3 | 0 | 0 | 0 | 20.1 | 19 | 10 | 3 | 9 | 22 |
| Martin Alty | 2026-2026 | 0 | 3 | .000 | 16.00 | 12 | 0 | 0 | 0 | 5 | 9.0 | 20 | 16 | 4 | 7 | 4 |
| António Álvarez | 2025-2025 | 0 | 1 | .000 | 32.40 | 3 | 0 | 0 | 0 | 0 | 1.2 | 5 | 6 | 1 | 6 | 0 |
| Tsuyoshi Amano | 2025-2026 | 1 | 0 | 1.000 | 3.91 | 37 | 0 | 0 | 0 | 0 | 69.0 | 65 | 30 | 5 | 54 | 82 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Vaughan Ambrose | 2014-2021 | 12 | 12 | .500 | 4.87 | 195 | 1 | 0 | 0 | 15 | 249.2 | 249 | 135 | 23 | 143 | 235 |
| Pepe Amiera | 2026-2027 | 0 | 1 | .000 | 3.09 | 15 | 0 | 0 | 0 | 0 | 35.0 | 33 | 12 | 3 | 16 | 17 |
| Aydin Amilakhvarov | 2018-2020 | 1 | 3 | .250 | 8.66 | 29 | 0 | 0 | 0 | 0 | 44.2 | 59 | 43 | 9 | 50 | 57 |
| Vasco Amore | 2015-2024 | 13 | 15 | .464 | 2.60 | 240 | 0 | 0 | 0 | 49 | 249.1 | 197 | 72 | 17 | 88 | 257 |
| Byung-ki An | 2021-2021 | 0 | 0 | .000 | 9.00 | 1 | 0 | 0 | 0 | 0 | 2.0 | 2 | 2 | 0 | 1 | 1 |
| Koi-sho An | 2026-2027 | 26 | 14 | .650 | 5.11 | 62 | 62 | 0 | 0 | 0 | 352.0 | 357 | 200 | 38 | 164 | 335 |
| Adam Anderson | 2025-2027 | 9 | 10 | .474 | 7.71 | 115 | 0 | 0 | 0 | 11 | 147.0 | 203 | 126 | 26 | 64 | 147 |
| Larry Anderson | 2017-2024 | 30 | 29 | .508 | 4.68 | 86 | 85 | 2 | 0 | 0 | 503.1 | 512 | 262 | 81 | 138 | 462 |
| Ron Anderson | 2017-2019 | 1 | 3 | .250 | 3.82 | 39 | 0 | 0 | 0 | 17 | 37.2 | 32 | 16 | 3 | 16 | 37 |
| Takeichi Ando | 2023-2027 | 17 | 12 | .586 | 4.51 | 214 | 0 | 0 | 0 | 46 | 205.2 | 225 | 103 | 21 | 82 | 172 |
| Jeff Andrews | 2015-2022 | 38 | 27 | .585 | 4.67 | 116 | 108 | 2 | 2 | 0 | 572.1 | 607 | 297 | 65 | 240 | 525 |
| Paul Andrews | 2026-2026 | 0 | 3 | .000 | 13.62 | 14 | 7 | 0 | 0 | 0 | 37.0 | 69 | 56 | 11 | 44 | 28 |
| Jean-Baptiste Andrieu | 2015-2022 | 25 | 12 | .676 | 4.56 | 369 | 0 | 0 | 0 | 12 | 530.2 | 549 | 269 | 75 | 169 | 474 |
| Jacob Angle | 2017-2027 | 52 | 33 | .612 | 4.57 | 262 | 90 | 0 | 0 | 7 | 803.2 | 726 | 408 | 106 | 497 | 999 |
| Peter Anthony | 2012-2022 | 36 | 19 | .655 | 4.30 | 395 | 0 | 0 | 0 | 41 | 490.1 | 424 | 234 | 32 | 342 | 585 |
| Bernard Antoine | 2024-2025 | 0 | 2 | .000 | 8.06 | 19 | 0 | 0 | 0 | 0 | 22.1 | 20 | 20 | 1 | 31 | 18 |
| Ienobu Aoki | 2026-2026 | 8 | 7 | .533 | 5.56 | 38 | 19 | 0 | 0 | 0 | 111.2 | 145 | 69 | 20 | 32 | 85 |
| Terao Aoki | 2023-2027 | 5 | 2 | .714 | 5.09 | 50 | 0 | 0 | 0 | 3 | 76.0 | 83 | 43 | 5 | 41 | 55 |
| Bob Archer | 2025-2027 | 2 | 2 | .500 | 2.53 | 34 | 0 | 0 | 0 | 4 | 42.2 | 40 | 12 | 2 | 23 | 44 |
| Baldassario Ardinghi | 2022-2022 | 4 | 2 | .667 | 3.19 | 34 | 0 | 0 | 0 | 17 | 31.0 | 32 | 11 | 2 | 18 | 33 |
| Abdul-Fattah Arfan | 2027-2027 | 2 | 0 | 1.000 | 1.13 | 6 | 0 | 0 | 0 | 0 | 8.0 | 5 | 1 | 0 | 7 | 6 |
| Lyndon Aris | 2026-2027 | 1 | 3 | .250 | 8.62 | 41 | 0 | 0 | 0 | 1 | 47.0 | 50 | 45 | 7 | 72 | 50 |
| Mario Arizola | 2026-2026 | 0 | 1 | .000 | 9.19 | 14 | 0 | 0 | 0 | 2 | 15.2 | 23 | 16 | 4 | 10 | 14 |
| Ed Armstrong | 2021-2022 | 8 | 0 | 1.000 | 1.80 | 39 | 0 | 0 | 0 | 9 | 45.0 | 29 | 9 | 2 | 26 | 48 |
| Rodney Armstrong | 2012-2012 | 0 | 0 | .000 | 2.35 | 1 | 1 | 0 | 0 | 0 | 7.2 | 9 | 2 | 0 | 3 | 5 |
| Robert Arnold | 2014-2026 | 20 | 15 | .571 | 3.81 | 294 | 0 | 0 | 0 | 84 | 338.0 | 333 | 143 | 21 | 166 | 341 |
| Pat Ashe | 2022-2024 | 10 | 4 | .714 | 2.79 | 90 | 0 | 0 | 0 | 3 | 119.1 | 111 | 37 | 9 | 35 | 123 |
| Anthony Atkinson | 2013-2018 | 6 | 2 | .750 | 1.52 | 10 | 10 | 0 | 0 | 0 | 65.0 | 45 | 11 | 1 | 15 | 58 |
| Jason Atkinson | 2025-2027 | 13 | 16 | .448 | 5.00 | 51 | 39 | 0 | 0 | 2 | 228.2 | 215 | 127 | 19 | 170 | 216 |
| Pin-zhen Au | 2026-2026 | 4 | 5 | .444 | 4.02 | 63 | 0 | 0 | 0 | 34 | 62.2 | 51 | 28 | 6 | 26 | 78 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Clay Auld | 2018-2022 | 19 | 33 | .365 | 6.52 | 73 | 73 | 1 | 0 | 0 | 429.1 | 516 | 311 | 78 | 191 | 308 |
| Terence Avery | 2027-2027 | 2 | 9 | .182 | 10.01 | 16 | 16 | 0 | 0 | 0 | 68.1 | 99 | 76 | 11 | 71 | 44 |
| Robert Avila | 2027-2027 | 0 | 0 | .000 | 4.26 | 3 | 0 | 0 | 0 | 0 | 6.1 | 8 | 3 | 2 | 2 | 6 |
| Diego Avilés | 2016-2024 | 33 | 27 | .550 | 4.65 | 210 | 34 | 2 | 0 | 14 | 511.0 | 612 | 264 | 39 | 151 | 358 |
| Jorge Ayala | 2014-2018 | 7 | 5 | .583 | 6.21 | 131 | 0 | 0 | 0 | 5 | 159.1 | 171 | 110 | 32 | 90 | 217 |
| Robert Ayala | 2025-2027 | 1 | 3 | .250 | 6.84 | 58 | 0 | 0 | 0 | 1 | 76.1 | 90 | 58 | 18 | 64 | 68 |
| Isei Azuma | 2016-2021 | 26 | 30 | .464 | 5.82 | 108 | 95 | 0 | 0 | 0 | 473.1 | 568 | 306 | 89 | 165 | 401 |
