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| "A" Pitching Register | |
| Batting Register | Pitching Glossary |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Gustavo Acuņa | 2021-2025 | 15 | 16 | .484 | 4.76 | 317 | 0 | 0 | 0 | 13 | 442.3 | 538 | 234 | 53 | 147 | 225 |
| Buster Adams | 2001-2004 | 12 | 0 | 1.000 | 3.73 | 122 | 1 | 0 | 0 | 2 | 166.7 | 180 | 69 | 14 | 73 | 106 |
| Huey Adams | 2025-2025 | 1 | 1 | .500 | 3.68 | 2 | 2 | 0 | 0 | 0 | 14.7 | 16 | 6 | 0 | 4 | 7 |
| Luis Adams | 2009-2012 | 8 | 19 | .296 | 6.25 | 30 | 30 | 0 | 0 | 0 | 167.0 | 182 | 116 | 33 | 73 | 90 |
| James Addison | 2001-2006 | 18 | 14 | .563 | 4.91 | 333 | 0 | 0 | 0 | 4 | 445.3 | 463 | 243 | 50 | 218 | 349 |
| James Adelson | 2011-2018 | 30 | 17 | .638 | 3.82 | 74 | 73 | 1 | 0 | 0 | 429.0 | 398 | 182 | 68 | 141 | 426 |
| Clarence Aguiar | 2001-2004 | 12 | 7 | .632 | 4.35 | 187 | 0 | 0 | 0 | 5 | 223.6 | 238 | 108 | 23 | 66 | 203 |
| Cleo Aguila | 2009-2018 | 16 | 14 | .533 | 6.15 | 345 | 2 | 0 | 0 | 35 | 500.3 | 658 | 342 | 98 | 142 | 186 |
| Kevin Aguirre | 2009-2017 | 1 | 6 | .143 | 10.71 | 148 | 0 | 0 | 0 | 1 | 212.7 | 358 | 253 | 59 | 167 | 88 |
| Cornelius Aguon | 2023-2025 | 26 | 19 | .578 | 4.87 | 62 | 61 | 6 | 3 | 0 | 360.7 | 412 | 195 | 46 | 138 | 212 |
| Leonardo Ahedo | 2025-2025 | 7 | 2 | .778 | 5.14 | 29 | 14 | 0 | 0 | 3 | 98.0 | 110 | 56 | 10 | 53 | 61 |
| Hanzaburou Akikazu | 2022-2025 | 13 | 7 | .650 | 5.49 | 188 | 0 | 0 | 0 | 6 | 268.7 | 339 | 164 | 34 | 106 | 103 |
| Arthur Albers | 2022-2025 | 25 | 39 | .391 | 5.58 | 106 | 97 | 1 | 1 | 0 | 546.3 | 580 | 339 | 65 | 330 | 442 |
| Lamar Alcantara | 2022-2025 | 1 | 2 | .333 | 9.33 | 31 | 0 | 0 | 0 | 0 | 46.3 | 64 | 48 | 20 | 12 | 22 |
| Amos Aldequeva | 2022-2025 | 10 | 17 | .370 | 6.24 | 233 | 0 | 0 | 0 | 2 | 379.3 | 467 | 263 | 69 | 159 | 173 |
| John Alderson | 2006-2015 | 26 | 16 | .619 | 3.96 | 325 | 3 | 0 | 0 | 20 | 537.0 | 537 | 236 | 70 | 87 | 294 |
| Charles Alexander | 2001-2005 | 9 | 33 | .214 | 7.56 | 104 | 53 | 0 | 0 | 0 | 339.3 | 503 | 285 | 45 | 184 | 166 |
| Emil Alfano | 2017-2025 | 46 | 40 | .535 | 4.05 | 631 | 0 | 0 | 0 | 100 | 875.0 | 909 | 394 | 80 | 243 | 774 |
| Brian Allen | 2002-2013 | 134 | 142 | .486 | 4.75 | 360 | 354 | 44 | 4 | 0 | 2419.5 | 2548 | 1276 | 407 | 825 | 1685 |
| Ildefonso Almeida | 2025-2025 | 0 | 2 | .000 | 20.27 | 8 | 0 | 0 | 0 | 1 | 6.7 | 15 | 15 | 4 | 10 | 2 |
| Edwin Almendarez | 2007-2011 | 14 | 25 | .359 | 5.15 | 51 | 49 | 9 | 1 | 0 | 342.7 | 347 | 196 | 51 | 150 | 172 |
| Eric Alm | 2021-2025 | 57 | 46 | .553 | 3.83 | 151 | 151 | 7 | 4 | 0 | 911.0 | 909 | 388 | 72 | 278 | 594 |
| Leo Alpert | 2007-2020 | 62 | 54 | .534 | 3.45 | 871 | 0 | 0 | 0 | 143 | 1181.3 | 1074 | 453 | 130 | 387 | 599 |
| Floyd Alt | 2012-2025 | 89 | 179 | .332 | 5.67 | 417 | 400 | 2 | 2 | 0 | 1964.9 | 2221 | 1238 | 133 | 1182 | 1099 |
| Sylvester Alvarado | 2011-2024 | 113 | 170 | .399 | 5.20 | 425 | 424 | 5 | 5 | 0 | 2189.6 | 2283 | 1264 | 257 | 1164 | 2051 |
| Albert Alvarez | 2007-2023 | 82 | 89 | .480 | 3.54 | 1080 | 0 | 0 | 0 | 310 | 1289.3 | 1156 | 507 | 142 | 411 | 1388 |
| Eddy Alvarez | 2018-2025 | 55 | 68 | .447 | 5.30 | 198 | 184 | 2 | 1 | 0 | 991.0 | 992 | 584 | 82 | 677 | 689 |
| Hernan Alvarez | 2022-2025 | 28 | 15 | .651 | 2.82 | 264 | 0 | 0 | 0 | 4 | 353.7 | 339 | 111 | 20 | 100 | 162 |
| Sergio Alvarez | 2023-2025 | 21 | 33 | .389 | 5.12 | 74 | 74 | 4 | 0 | 0 | 455.7 | 472 | 259 | 69 | 215 | 364 |
| Kyle Aman | 2023-2025 | 12 | 10 | .545 | 5.27 | 95 | 2 | 0 | 0 | 2 | 135.0 | 146 | 79 | 23 | 55 | 68 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Tobias Amy | 2001-2006 | 47 | 33 | .588 | 4.17 | 129 | 104 | 17 | 2 | 1 | 791.7 | 730 | 367 | 56 | 357 | 529 |
| Houston Anderson | 2001-2005 | 12 | 23 | .343 | 4.77 | 67 | 50 | 0 | 0 | 1 | 322.6 | 329 | 171 | 38 | 151 | 256 |
| Jeffrey Anderson | 2001-2008 | 35 | 27 | .565 | 4.53 | 386 | 0 | 0 | 0 | 75 | 481.1 | 477 | 242 | 61 | 185 | 491 |
| John Anderson | 2001-2008 | 12 | 12 | .500 | 6.11 | 184 | 1 | 0 | 0 | 8 | 245.9 | 310 | 167 | 45 | 102 | 169 |
| Kasey Anderson | 2016-2025 | 63 | 132 | .323 | 5.30 | 300 | 281 | 17 | 2 | 0 | 1743.6 | 1952 | 1027 | 246 | 655 | 1184 |
| Peter Anderson | 2020-2025 | 4 | 3 | .571 | 4.61 | 88 | 0 | 0 | 0 | 11 | 113.3 | 107 | 58 | 28 | 47 | 58 |
| Rey Anderson | 2017-2025 | 35 | 21 | .625 | 3.23 | 414 | 0 | 0 | 0 | 29 | 635.6 | 636 | 228 | 32 | 178 | 268 |
| Edgar Anderton | 2001-2007 | 40 | 71 | .360 | 5.62 | 155 | 155 | 29 | 3 | 0 | 1007.6 | 1215 | 629 | 114 | 460 | 645 |
| Jeff Andrade | 2001-2004 | 2 | 3 | .400 | 9.11 | 47 | 0 | 0 | 0 | 3 | 51.4 | 93 | 52 | 8 | 29 | 47 |
| Henry Andrews | 2011-2015 | 12 | 18 | .400 | 5.43 | 36 | 33 | 8 | 1 | 0 | 215.3 | 219 | 130 | 44 | 93 | 97 |
| Alejandro Andujar | 2025-2025 | 3 | 5 | .375 | 5.97 | 11 | 11 | 0 | 0 | 0 | 60.3 | 63 | 40 | 7 | 47 | 31 |
| Steven Andujar | 2001-2013 | 158 | 141 | .528 | 4.37 | 402 | 394 | 40 | 11 | 0 | 2636.1 | 2542 | 1280 | 366 | 880 | 1661 |
| Ossie Anthony | 2006-2019 | 118 | 128 | .480 | 4.64 | 409 | 392 | 4 | 2 | 1 | 2137.7 | 2147 | 1101 | 262 | 819 | 1206 |
| David Antonelli | 2001-2006 | 32 | 45 | .416 | 5.94 | 145 | 100 | 4 | 0 | 1 | 649.0 | 708 | 428 | 99 | 308 | 403 |
| George Aparicio | 2016-2025 | 48 | 23 | .676 | 3.81 | 524 | 0 | 0 | 0 | 36 | 691.3 | 777 | 293 | 16 | 187 | 302 |
| Bobbie Applegate | 2001-2017 | 198 | 163 | .548 | 3.97 | 505 | 492 | 50 | 19 | 0 | 3259.4 | 3405 | 1436 | 279 | 789 | 2332 |
| Dennis Aragon | 2010-2024 | 140 | 93 | .601 | 3.49 | 451 | 325 | 7 | 6 | 9 | 2098.6 | 2177 | 813 | 111 | 422 | 1498 |
| Jason Arana | 2017-2023 | 10 | 11 | .476 | 6.38 | 164 | 0 | 0 | 0 | 4 | 241.3 | 236 | 171 | 56 | 158 | 201 |
| Chester Archer | 2017-2025 | 6 | 5 | .545 | 6.20 | 53 | 0 | 0 | 0 | 2 | 85.6 | 87 | 59 | 26 | 42 | 57 |
| Anthony Arechiga | 2001-2011 | 112 | 80 | .583 | 4.66 | 305 | 267 | 5 | 2 | 1 | 1609.3 | 1568 | 834 | 216 | 719 | 1245 |
| Michael Arent | 2001-2008 | 56 | 72 | .438 | 5.69 | 234 | 228 | 0 | 0 | 0 | 1177.0 | 1346 | 744 | 160 | 500 | 894 |
| Gregory Arevalo | 2011-2025 | 210 | 170 | .553 | 3.85 | 508 | 508 | 58 | 19 | 0 | 3335.0 | 3334 | 1427 | 226 | 765 | 2195 |
| Wilfredo Arguelles | 2005-2023 | 154 | 72 | .681 | 2.17 | 1421 | 0 | 0 | 0 | 479 | 1887.6 | 1288 | 455 | 131 | 443 | 1562 |
| John Armstrong | 2017-2025 | 14 | 16 | .467 | 6.95 | 278 | 0 | 0 | 0 | 14 | 300.6 | 337 | 232 | 34 | 289 | 233 |
| Dominic Arriaga | 2013-2025 | 46 | 37 | .554 | 3.94 | 741 | 4 | 0 | 0 | 40 | 1052.3 | 989 | 461 | 111 | 475 | 702 |
| Cesar Artiaga | 2006-2023 | 76 | 105 | .420 | 4.43 | 1073 | 0 | 0 | 0 | 362 | 1311.0 | 1349 | 645 | 151 | 493 | 1276 |
| Matthew Asay | 2014-2025 | 79 | 86 | .479 | 4.58 | 231 | 216 | 19 | 6 | 0 | 1405.0 | 1503 | 715 | 258 | 527 | 1069 |
| Daryl Ash | 2025-2025 | 1 | 12 | .077 | 7.25 | 21 | 21 | 0 | 0 | 0 | 90.7 | 108 | 73 | 23 | 46 | 48 |
| Ryosei Atshushi | 2014-2025 | 179 | 103 | .635 | 3.38 | 396 | 396 | 48 | 13 | 0 | 2680.3 | 2596 | 1008 | 249 | 457 | 1861 |
| Craig Aubin | 2001-2006 | 52 | 62 | .456 | 5.75 | 173 | 157 | 14 | 1 | 1 | 986.3 | 1154 | 630 | 115 | 508 | 547 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Bruce Auerbach | 2001-2007 | 10 | 6 | .625 | 5.97 | 116 | 0 | 0 | 0 | 5 | 162.8 | 213 | 108 | 28 | 75 | 163 |
| Rex Austin | 2019-2019 | 6 | 3 | .667 | 7.38 | 75 | 0 | 0 | 0 | 6 | 111.0 | 162 | 91 | 23 | 78 | 25 |
| John Aust | 2001-2007 | 24 | 30 | .444 | 4.66 | 463 | 5 | 0 | 0 | 35 | 574.0 | 570 | 297 | 53 | 261 | 495 |
| Stephen Auxier | 2001-2014 | 105 | 123 | .461 | 5.53 | 408 | 340 | 17 | 3 | 3 | 2121.4 | 2371 | 1304 | 316 | 884 | 965 |
| Justas Avelar | 2016-2016 | 4 | 0 | 1.000 | 4.29 | 46 | 0 | 0 | 0 | 5 | 71.3 | 70 | 34 | 13 | 24 | 55 |
| Miguel Ayala | 2006-2019 | 43 | 51 | .457 | 4.73 | 518 | 0 | 0 | 0 | 125 | 681.3 | 615 | 358 | 62 | 367 | 636 |
| Tim Ayala | 2019-2025 | 29 | 26 | .527 | 4.43 | 385 | 0 | 0 | 0 | 18 | 488.0 | 490 | 240 | 35 | 172 | 262 |
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