西口文也
詳細情報 > 年度別投手成績

| 年  度 | 球団 | 登板 | 先発 | 完投 | 完封 | 無四球 | 勝利 | 敗戦 | セ丨ブ | ホ丨ルド | 勝率 | 打者 | 投球回 | 被安打 | 被本塁打 | 与四球 | 敬遠 | 与死球 | 奪三振 | 暴投 | ボ丨ク | 失点 | 自責点 | 防御率 | WHIP |
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| 1995 | 西武 | 9 | 4 | 1 | 1 | 0 | 2 | 0 | 0 | -- | 1.000 | 183 | 45.1 | 43 | 2 | 10 | 1 | 0 | 34 | 0 | 0 | 15 | 10 | 1.99 | 1.18 |
| 1996 | 西武 | 31 | 27 | 13 | 2 | 2 | 16 | 10 | 1 | -- | .615 | 849 | 210.1 | 172 | 21 | 74 | 1 | 2 | 173 | 4 | 0 | 77 | 74 | 3.17 | 1.18 |
| 1997 | 西武 | 32 | 26 | 10 | 0 | 2 | 15 | 5 | 1 | -- | .750 | 871 | 207.2 | 187 | 20 | 68 | 3 | 5 | 192 | 1 | 0 | 85 | 72 | 3.12 | 1.25 |
| 1998 | 西武 | 33 | 25 | 8 | 5 | 1 | 13 | 12 | 4 | -- | .520 | 757 | 181.0 | 160 | 16 | 73 | 0 | 4 | 148 | 1 | 1 | 80 | 68 | 3.38 | 1.31 |
| 1999 | 西武 | 29 | 27 | 7 | 3 | 0 | 14 | 10 | 0 | -- | .583 | 732 | 179.1 | 141 | 20 | 55 | 2 | 3 | 141 | 3 | 0 | 72 | 68 | 3.41 | 1.11 |
| 2000 | 西武 | 24 | 20 | 4 | 2 | 1 | 11 | 5 | 0 | -- | .688 | 618 | 145.2 | 136 | 22 | 59 | 0 | 3 | 131 | 2 | 0 | 62 | 61 | 3.77 | 1.36 |
| 2001 | 西武 | 28 | 28 | 1 | 0 | 0 | 14 | 9 | 0 | -- | .609 | 730 | 165.1 | 156 | 18 | 85 | 0 | 6 | 143 | 6 | 0 | 85 | 80 | 4.35 | 1.50 |
| 2002 | 西武 | 29 | 29 | 3 | 2 | 0 | 15 | 10 | 0 | -- | .600 | 753 | 182.0 | 166 | 25 | 51 | 1 | 5 | 180 | 3 | 1 | 76 | 71 | 3.51 | 1.22 |
| 2003 | 西武 | 14 | 14 | 0 | 0 | 0 | 6 | 3 | 0 | -- | .667 | 349 | 76.1 | 85 | 19 | 31 | 1 | 3 | 69 | 1 | 0 | 60 | 58 | 6.84 | 1.56 |
| 2004 | 西武 | 21 | 21 | 0 | 0 | 0 | 10 | 5 | 0 | -- | .667 | 506 | 117.1 | 97 | 19 | 56 | 1 | 4 | 112 | 4 | 0 | 50 | 42 | 3.22 | 1.34 |
| 2005 | 西武 | 25 | 25 | 3 | 1 | 0 | 17 | 5 | 0 | 0 | .773 | 701 | 172.0 | 157 | 13 | 34 | 0 | 9 | 137 | 5 | 0 | 55 | 53 | 2.77 | 1.16 |
| 2006 | 西武 | 26 | 26 | 2 | 0 | 0 | 9 | 9 | 0 | 0 | .500 | 767 | 177.1 | 175 | 22 | 65 | 2 | 9 | 154 | 0 | 0 | 76 | 70 | 3.55 | 1.41 |
| 2007 | 西武 | 25 | 25 | 0 | 0 | 0 | 9 | 11 | 0 | 0 | .450 | 648 | 153.2 | 149 | 18 | 44 | 1 | 6 | 103 | 2 | 0 | 78 | 73 | 4.28 | 1.30 |
| 2008 | 西武 | 22 | 21 | 0 | 0 | 0 | 8 | 6 | 0 | 0 | .571 | 517 | 116.1 | 125 | 18 | 48 | 2 | 4 | 92 | 5 | 0 | 69 | 65 | 5.03 | 1.52 |
| 2009 | 西武 | 25 | 16 | 0 | 0 | 0 | 4 | 4 | 0 | 3 | .500 | 423 | 93.1 | 110 | 14 | 38 | 2 | 4 | 60 | 3 | 0 | 55 | 53 | 5.11 | 1.59 |
| 2010 | 西武 | 13 | 12 | 0 | 0 | 0 | 3 | 2 | 0 | 0 | .600 | 261 | 57.1 | 65 | 8 | 27 | 0 | 2 | 43 | 0 | 0 | 36 | 35 | 5.49 | 1.61 |
| 2011 | 西武 | 22 | 22 | 2 | 1 | 0 | 11 | 7 | 0 | 0 | .611 | 566 | 140.0 | 104 | 5 | 41 | 1 | 8 | 104 | 2 | 1 | 44 | 40 | 2.57 | 1.04 |
| 2012 | 西武 | 14 | 14 | 0 | 0 | 0 | 5 | 2 | 0 | 0 | .714 | 347 | 81.2 | 77 | 4 | 29 | 0 | 1 | 44 | 2 | 0 | 35 | 34 | 3.75 | 1.30 |
| 2013 | 西武 | 4 | 4 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | 58 | 10.2 | 18 | 2 | 9 | 0 | 0 | 7 | 0 | 0 | 10 | 10 | 8.44 | 2.53 |
| 2014 | 西武 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | 51 | 11 | 10 | 3 | 8 | 0 | 3 | 11 | 1 | 0 | 10 | 6 | 4.91 | 1.64 |
| 2015 | 西武 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | 19 | 4.0 | 6 | 1 | 1 | 0 | 0 | 4 | 1 | 0 | 4 | 4 | 9.00 | 1.75 |
| 通算：21年 | 通算：21年 | 436 | 387 | 54 | 17 | 6 | 182 | 118 | 6 | 3 | .607 | 10706 | 2527.2 | 2339 | 290 | 906 | 18 | 81 | 2082 | 46 | 3 | 1134 | 1047 | 3.73 | 1.28 |
各年度の太字はリーグ最高