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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Index | Leaders |
| Manager | Years | From-To | G | W | L | WPct | Best Finish | Worst Finish | Playoff App | Championships |
|---|---|---|---|---|---|---|---|---|---|---|
| Sung-yong An | 4 | 2021-2024 | 200 | 88 | 112 | .440 | 4th | 5th | 1 | 0 |
| Art Avery | 13 | 2021-2033 | 602 | 310 | 292 | .515 | 1st | 6th | 5 | 0 |
| Pedro Banda | 6 | 2024-2028 | 200 | 103 | 97 | .515 | 2nd | 5th | 1 | 0 |
| Nicholas Barnes | 8 | 2021-2028 | 379 | 183 | 196 | .483 | 2nd | 4th | 3 | 0 |
| Paco Benítez | 2 | 2025-2026 | 50 | 22 | 28 | .440 | 5th | 5th | 0 | 0 |
| Thomas Bisson | 2 | 2031-2032 | 100 | 49 | 51 | .490 | 2nd | 3rd | 1 | 0 |
| Coen Bouwman | 3 | 2021-2023 | 150 | 66 | 84 | .440 | 1st | 3rd | 0 | 0 |
| Lee Brown | 2 | 2027-2027 | 50 | 24 | 26 | .480 | 4th | 4th | 0 | 0 |
| Julián Carrasco | 5 | 2036-2040 | 269 | 131 | 138 | .487 | 2nd | 4th | 0 | 0 |
| Deu-kyum Cho | 5 | 2034-2038 | 270 | 121 | 149 | .448 | 1st | 3rd | 1 | 0 |
| Yong-sup Chong | 6 | 2035-2040 | 323 | 165 | 158 | .511 | 2nd | 6th | 3 | 0 |
| Allan Dennis | 2 | 2039-2040 | 107 | 43 | 64 | .402 | 1st | 4th | 0 | 0 |
| Garry Dooley | 4 | 2021-2024 | 201 | 83 | 118 | .413 | 3rd | 5th | 0 | 0 |
| Bob Erickson | 3 | 2028-2030 | 151 | 76 | 75 | .503 | 3rd | 5th | 0 | 0 |
| Álex Flores | 4 | 2037-2040 | 215 | 117 | 98 | .544 | 1st | 4th | 2 | 0 |
| Matsudaira Fujii | 2 | 2024-2025 | 50 | 22 | 28 | .440 | 1st | 3rd | 0 | 0 |
| Kazuyuki Fujio | 4 | 2021-2024 | 201 | 107 | 94 | .532 | 4th | 5th | 3 | 0 |
| José Gallegos | 6 | 2035-2040 | 323 | 157 | 166 | .486 | 1st | 6th | 1 | 0 |
| Henry Gilbert | 2 | 2027-2028 | 100 | 63 | 37 | .630 | 1st | 2nd | 2 | 0 |
| Earl Gillin | 1 | 2021-2021 | 50 | 18 | 32 | .360 | 5th | 5th | 0 | 0 |
| Félix Gutiérrez | 6 | 2031-2036 | 312 | 170 | 142 | .545 | 1st | 6th | 4 | 0 |
| Hidetada Hagiwara | 3 | 2038-2040 | 161 | 82 | 79 | .509 | 2nd | 4th | 0 | 0 |
| Victor Hall | 4 | 2037-2040 | 215 | 97 | 118 | .451 | 2nd | 4th | 0 | 0 |
| Murray Harris | 5 | 2036-2040 | 269 | 154 | 115 | .572 | 1st | 3rd | 2 | 0 |
| Nick Hart | 3 | 2021-2023 | 151 | 71 | 80 | .470 | 2nd | 4th | 1 | 0 |
| Norio Heida | 5 | 2033-2037 | 266 | 122 | 144 | .459 | 2nd | 6th | 0 | 0 |
| Carlos Hernández | 5 | 2021-2025 | 200 | 100 | 100 | .500 | 1st | 5th | 2 | 1 |
| Tetsunori Hirano | 4 | 2029-2032 | 200 | 107 | 93 | .535 | 1st | 3rd | 1 | 0 |
| Miguel Huerta | 4 | 2037-2040 | 215 | 95 | 120 | .442 | 3rd | 4th | 0 | 0 |
| Toshiro Imamura | 7 | 2027-2032 | 300 | 151 | 149 | .503 | 1st | 6th | 2 | 0 |
| Michizane Ine | 4 | 2034-2036 | 162 | 72 | 90 | .444 | 3rd | 4th | 0 | 0 |
| Gen Ishii | 7 | 2021-2027 | 350 | 176 | 174 | .503 | 1st | 5th | 3 | 0 |
| Kuemon Ito | 4 | 2037-2040 | 216 | 119 | 97 | .551 | 1st | 5th | 1 | 0 |
| Elliott Jensen | 11 | 2029-2039 | 574 | 294 | 280 | .512 | 1st | 6th | 5 | 1 |
| Alex Jones | 5 | 2035-2039 | 270 | 136 | 134 | .504 | 1st | 4th | 2 | 1 |
| Yukinaga Kawasaki | 12 | 2030-2040 | 577 | 312 | 265 | .541 | 1st | 5th | 3 | 1 |
| Momoru Kimura | 2 | 2021-2022 | 100 | 50 | 50 | .500 | 5th | 5th | 1 | 0 |
| Taro Kobayashi | 4 | 2025-2026 | 50 | 18 | 32 | .360 | 4th | 4th | 0 | 0 |
| Shintaro Kodo | 4 | 2021-2024 | 200 | 97 | 103 | .485 | 1st | 4th | 1 | 0 |
| Ogai Kokawa | 14 | 2021-2034 | 654 | 381 | 273 | .583 | 1st | 5th | 9 | 3 |
| Tadakuni Kouki | 3 | 2038-2040 | 161 | 79 | 82 | .491 | 3rd | 6th | 0 | 0 |
| Toshikazu Koyama | 4 | 2037-2040 | 215 | 106 | 109 | .493 | 3rd | 4th | 0 | 0 |
| Otojiro Kudo | 4 | 2025-2028 | 150 | 52 | 98 | .347 | 3rd | 5th | 0 | 0 |
| Noburo Kurihara | 3 | 2035-2037 | 162 | 82 | 80 | .506 | 1st | 6th | 1 | 0 |
| Ki-hoon Kwon | 5 | 2027-2031 | 250 | 126 | 124 | .504 | 1st | 6th | 2 | 1 |
| François Lamontagne | 2 | 2022-2023 | 50 | 27 | 23 | .540 | 2nd | 5th | 1 | 0 |
| Frank Lowe | 7 | 2034-2040 | 378 | 223 | 155 | .590 | 1st | 3rd | 5 | 2 |
| Magobei Matsumoto | 9 | 2021-2040 | 462 | 221 | 241 | .478 | 1st | 4th | 1 | 0 |
| Koshiro Matsuoka | 6 | 2021-2026 | 301 | 155 | 146 | .515 | 1st | 3rd | 2 | 1 |
| Ben Mayfield | 7 | 2034-2040 | 377 | 192 | 185 | .509 | 2nd | 4th | 1 | 0 |
| Hunter McClellan | 4 | 2025-2028 | 151 | 79 | 72 | .523 | 1st | 3rd | 2 | 0 |
| Liam McIntosh | 5 | 2023-2027 | 201 | 114 | 87 | .567 | 1st | 5th | 3 | 0 |
| Kitahachi Morishita | 2 | 2039-2040 | 107 | 49 | 58 | .458 | 3rd | 3rd | 0 | 0 |
| Nobuhito Nagata | 13 | 2021-2033 | 651 | 326 | 325 | .501 | 1st | 6th | 4 | 1 |
| Akihisa Nishida | 15 | 2020-2034 | 706 | 349 | 357 | .494 | 1st | 6th | 5 | 3 |
| Taisuke Ogawa | 7 | 2034-2040 | 377 | 187 | 190 | .496 | 1st | 4th | 2 | 0 |
| Takesi Ohayashi | 1 | 2032-2032 | 50 | 22 | 28 | .440 | 5th | 5th | 0 | 0 |
| Michizane Oya | 6 | 2032-2037 | 316 | 173 | 143 | .547 | 1st | 5th | 4 | 0 |
| Patrick Reynolds | 3 | 2028-2030 | 150 | 68 | 82 | .453 | 2nd | 5th | 1 | 0 |
| John Roberts | 5 | 2036-2040 | 269 | 125 | 144 | .465 | 1st | 4th | 2 | 1 |
| Gregg Rodgers | 5 | 2035-2039 | 270 | 118 | 152 | .437 | 3rd | 6th | 0 | 0 |
| Augusto Rodríguez | 2 | 2039-2040 | 107 | 54 | 53 | .505 | 2nd | 2nd | 0 | 0 |
| Pablo Rojas | 4 | 2037-2040 | 215 | 107 | 108 | .498 | 1st | 3rd | 1 | 0 |
| Hisashi Saito | 7 | 2024-2030 | 301 | 147 | 154 | .488 | 2nd | 6th | 3 | 0 |
| Sadatake Saito | 16 | 2021-2036 | 815 | 414 | 401 | .508 | 1st | 6th | 6 | 1 |
| Yoshitoki Saito | 3 | 2024-2025 | 50 | 19 | 31 | .380 | 4th | 4th | 0 | 0 |
| Shigetaka Samurakami | 2 | 2029-2030 | 100 | 47 | 53 | .470 | 4th | 5th | 0 | 0 |
| Takanibu Shimizu | 3 | 2024-2026 | 100 | 49 | 51 | .490 | 3rd | 4th | 0 | 0 |
| Shigeaki Shiroi | 2 | 2028-2029 | 101 | 48 | 53 | .475 | 3rd | 5th | 1 | 0 |
| Pedro Silva | 4 | 2033-2036 | 213 | 100 | 113 | .469 | 1st | 4th | 2 | 0 |
| Joe Silver | 1 | 2040-2040 | 53 | 28 | 25 | .528 | 3rd | 3rd | 0 | 0 |
| Scott Simpson | 1 | 2040-2040 | 53 | 20 | 33 | .377 | 6th | 6th | 0 | 0 |
| Jeff Summers | 1 | 2040-2040 | 53 | 26 | 27 | .491 | 1st | 1st | 0 | 0 |
| Tomohiko Tanaka | 1 | 2040-2040 | 53 | 25 | 28 | .472 | 3rd | 3rd | 0 | 0 |
| Tommy Taylor | 8 | 2029-2036 | 412 | 206 | 206 | .500 | 1st | 6th | 3 | 1 |
| Mike Vincent | 1 | 2031-2031 | 50 | 28 | 22 | .560 | 2nd | 2nd | 1 | 0 |
| Naozane Watanabe | 12 | 2029-2040 | 628 | 345 | 283 | .549 | 1st | 6th | 7 | 0 |
| Natsume Yamada | 15 | 2021-2035 | 759 | 378 | 381 | .498 | 1st | 5th | 6 | 0 |
| Hidekazu Yamamoto | 19 | 2021-2039 | 975 | 492 | 483 | .505 | 1st | 6th | 7 | 0 |
| Natsuo Yamamoto | 2 | 2020-2021 | 23 | 9 | 14 | .391 | 1st | 5th | 0 | 0 |
| Si-hun Yi | 5 | 2030-2034 | 254 | 113 | 141 | .445 | 3rd | 6th | 0 | 0 |
| Yasuyuki Yoshida | 7 | 2021-2027 | 351 | 203 | 148 | .578 | 2nd | 3rd | 4 | 1 |
| Norogumi Yoshioka | 5 | 2036-2040 | 269 | 120 | 149 | .446 | 3rd | 6th | 0 | 0 |
| Steve Young | 3 | 2038-2040 | 161 | 68 | 93 | .422 | 5th | 6th | 0 | 0 |
