| 1994 | Seibu | Jap Pac | Intl | | - | 22 | 0 | 0 | 16.20 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 6.2 | 14 | 13 | 12 | 1 | 5 | 2 | 0 | 0 | 0 | 2.85 | 18.90 | 1.35 | 6.75 | 2.70 | 17.55 | 0.40 |
| 1995 | Seibu | Jap Pac | Intl | | - | 23 | 2 | 2 | 4.03 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 67.0 | 76 | 30 | 30 | 5 | 22 | 34 | 0 | 0 | 0 | 1.46 | 10.21 | 0.67 | 2.96 | 4.57 | 4.03 | 1.55 |
| 1996 | Seibu | Jap Pac | Intl | | - | 24 | 3 | 6 | 2.93 | 35 | 0 | 0 | 0 | 0 | 0 | 4 | 95.1 | 100 | 41 | 31 | 4 | 39 | 74 | 0 | 0 | 0 | 1.46 | 9.44 | 0.38 | 3.68 | 6.99 | 3.87 | 1.90 |
| 1997 | Seibu | Jap Pac | Intl | | - | 25 | 10 | 8 | 3.61 | 59 | 0 | 1 | 1 | 0 | 0 | 9 | 102.1 | 113 | 46 | 41 | 7 | 35 | 68 | 0 | 0 | 0 | 1.45 | 9.94 | 0.62 | 3.08 | 5.98 | 4.05 | 1.94 |
| 1998 | Seibu | Jap Pac | Intl | | - | 26 | 9 | 3 | 3.29 | 30 | 0 | 1 | 0 | 0 | 0 | 0 | 145.0 | 143 | 59 | 53 | 10 | 44 | 98 | 0 | 0 | 0 | 1.29 | 8.88 | 0.62 | 2.73 | 6.08 | 3.66 | 2.23 |
| 1999 | Seibu | Jap Pac | Intl | | - | 27 | 13 | 8 | 3.07 | 26 | 0 | 4 | 1 | 0 | 0 | 0 | 178.2 | 177 | 62 | 61 | 16 | 43 | 108 | 0 | 0 | 0 | 1.23 | 8.92 | 0.81 | 2.17 | 5.44 | 3.12 | 2.51 |
| 2000 | Seibu | Jap Pac | Intl | | 14 | 28 | 10 | 7 | 4.31 | 25 | 0 | 2 | 2 | 0 | 0 | 0 | 135.2 | 148 | 68 | 65 | 9 | 39 | 80 | 0 | 0 | 0 | 1.38 | 9.82 | 0.60 | 2.59 | 5.31 | 4.51 | 2.05 |
| 2002 | Seibu | Jap Pac | Intl | | - | 30 | 8 | 3 | 3.11 | 22 | 0 | 2 | 0 | 0 | 0 | 0 | 130.1 | 134 | 45 | 45 | 7 | 36 | 73 | 0 | 0 | 0 | 1.30 | 9.25 | 0.48 | 2.49 | 5.04 | 3.11 | 2.03 |
| 2003 | Seibu | Jap Pac | Intl | | - | 31 | 1 | 2 | 4.24 | 6 | 0 | 1 | 0 | 0 | 0 | 0 | 40.1 | 45 | 20 | 19 | 4 | 8 | 22 | 0 | 0 | 0 | 1.31 | 10.04 | 0.89 | 1.79 | 4.91 | 4.46 | 2.75 |
| 2004 | Seibu | Jap Pac | Intl | | - | 32 | 1 | 5 | 4.65 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 69.2 | 82 | 49 | 36 | 6 | 28 | 35 | 0 | 0 | 0 | 1.58 | 10.59 | 0.78 | 3.62 | 4.52 | 6.33 | 1.25 |
| 2005 | Seibu | Jap Pac | Intl | | - | 33 | 2 | 4 | 8.04 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 28.0 | 42 | 27 | 25 | 4 | 11 | 8 | 0 | 1 | 0 | 1.89 | 13.50 | 1.29 | 3.54 | 2.57 | 8.68 | 0.73 |
| 2006 | Seibu | Jap Pac | Intl | | 21 | 34 | 4 | 1 | 3.49 | 46 | 0 | 0 | 0 | 0 | 6 | 0 | 38.2 | 39 | 17 | 15 | 4 | 8 | 22 | 2 | 0 | 0 | 1.22 | 9.08 | 0.93 | 1.86 | 5.12 | 3.96 | 2.75 |
| 2007 | Seibu Lions | Jap Pac | Intl | | - | 35 | 0 | 0 | 7.36 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 10 | 6 | 6 | 0 | 4 | 5 | 0 | 0 | 0 | 1.91 | 12.27 | 0.00 | 4.91 | 6.14 | 7.36 | 1.25 |