| 12/31/2015 | ||||||
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| Index | Leaders |
| Manager | Years | From-To | G | W | L | WPct | Best Finish | Worst Finish | Playoff App | Championships |
|---|---|---|---|---|---|---|---|---|---|---|
| John Burch | 1 | 2012-2012 | 88 | 26 | 62 | .295 | 6th | 6th | 0 | 0 |
| Quincy Fraley | 4 | 2012-2015 | 360 | 177 | 183 | .492 | 1st | 6th | 1 | 0 |
| Carlos García | 2 | 2012-2013 | 176 | 92 | 84 | .523 | 2nd | 4th | 0 | 0 |
| Tom Good | 4 | 2013-2015 | 272 | 150 | 122 | .551 | 1st | 5th | 1 | 0 |
| Allen Hahn | 1 | 2012-2012 | 96 | 42 | 54 | .438 | 5th | 5th | 0 | 0 |
| Kawanari Ishii | 5 | 2012-2012 | 0 | 0 | 0 | .000 | 1st | 1st | 0 | 0 |
| Mitsuzuka Ito | 4 | 2012-2014 | 192 | 104 | 88 | .542 | 1st | 4th | 1 | 0 |
| Noburo Kamida | 1 | 2012-2012 | 0 | 0 | 0 | .000 | 1st | 1st | 0 | 0 |
| Yoshii Kamuta | 1 | 2012-2012 | 0 | 0 | 0 | .000 | 1st | 1st | 0 | 0 |
| Motonobu Kiyomizu | 1 | 2012-2012 | 0 | 0 | 0 | .000 | 1st | 1st | 0 | 0 |
| Nakazo Kobayashi | 1 | 2012-2012 | 0 | 0 | 0 | .000 | 1st | 1st | 0 | 0 |
| Ken Lange | 1 | 2015-2015 | 39 | 10 | 29 | .256 | 6th | 6th | 0 | 0 |
| Rob Lewis | 4 | 2012-2012 | 96 | 31 | 65 | .323 | 6th | 6th | 0 | 0 |
| Derek Marshall | 4 | 2012-2015 | 352 | 194 | 158 | .551 | 1st | 3rd | 2 | 2 |
| Davey Morris | 4 | 2012-2015 | 384 | 214 | 170 | .557 | 1st | 4th | 1 | 0 |
| Sadao Nagahama | 1 | 2012-2012 | 0 | 0 | 0 | .000 | 1st | 1st | 0 | 0 |
| Arinori Nakamura | 1 | 2012-2012 | 0 | 0 | 0 | .000 | 1st | 1st | 0 | 0 |
| Senichi Otsuka | 5 | 2012-2015 | 385 | 185 | 200 | .481 | 1st | 6th | 1 | 1 |
| Pancho Pérez | 4 | 2015-2015 | 88 | 52 | 36 | .591 | 2nd | 2nd | 0 | 0 |
| Don Pratt | 3 | 2012-2014 | 280 | 127 | 153 | .454 | 4th | 6th | 0 | 0 |
| Shizue Rin | 1 | 2012-2012 | 0 | 0 | 0 | .000 | 1st | 1st | 0 | 0 |
| Yoshihisa Saikawa | 4 | 2014-2015 | 149 | 96 | 53 | .644 | 1st | 3rd | 1 | 1 |
| Iván Salinas | 4 | 2013-2015 | 232 | 118 | 114 | .509 | 2nd | 6th | 0 | 0 |
| Munenori Sato | 1 | 2012-2012 | 0 | 0 | 0 | .000 | 1st | 1st | 0 | 0 |
| Edwin Spence | 2 | 2012-2013 | 142 | 69 | 73 | .486 | 2nd | 6th | 0 | 0 |
| Hidehira Tenno | 5 | 2012-2015 | 376 | 200 | 176 | .532 | 1st | 4th | 0 | 0 |
| Dan Thibodeaux | 4 | 2012-2015 | 384 | 186 | 198 | .484 | 3rd | 6th | 0 | 0 |
| Nathan Turner | 3 | 2014-2014 | 26 | 10 | 16 | .385 | 5th | 5th | 0 | 0 |
| Harry Walker | 4 | 2015-2015 | 88 | 38 | 50 | .432 | 4th | 4th | 0 | 0 |
| Torazo Yamamoto | 4 | 2012-2015 | 239 | 101 | 138 | .423 | 1st | 6th | 0 | 0 |
