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| "J" Pitching Register | |
| Batting Register | Pitching Glossary |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO | PWS |
| Otha Janousek | 2010-2011 | 0 | 2 | .000 | 14.08 | 12 | 1 | 0 | 0 | 0 | 31.3 | 60 | 49 | 10 | 24 | 11 | 0.0 |
| Milton Jared | 2009-2012 | 5 | 6 | .455 | 6.61 | 99 | 0 | 0 | 0 | 2 | 125.3 | 157 | 92 | 32 | 68 | 94 | 2.2 |
| John Jessen | 2004-2005 | 2 | 4 | .333 | 4.07 | 8 | 6 | 0 | 0 | 0 | 42.0 | 44 | 19 | 3 | 17 | 32 | 2.2 |
| Rocco Jin | 2005-2005 | 3 | 11 | .214 | 5.22 | 18 | 18 | 4 | 3 | 0 | 112.0 | 143 | 65 | 8 | 43 | 69 | 3.7 |
| Ralph Johnston | 2008-2008 | 15 | 15 | .500 | 3.61 | 37 | 37 | 2 | 2 | 0 | 236.7 | 234 | 95 | 14 | 60 | 146 | 20.2 |
| Nathanial Jose | 2007-2007 | 3 | 1 | .750 | 3.36 | 42 | 0 | 0 | 0 | 0 | 56.3 | 49 | 21 | 7 | 18 | 44 | 5.6 |
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