| 1997 | Seibu | Jap Pac | Intl | | - | 22 | 6 | 2 | 3.28 | 38 | 0 | 0 | 0 | 0 | 0 | 9 | 57.2 | 61 | 24 | 21 | 4 | 20 | 61 | 0 | 0 | 0 | 1.40 | 9.52 | 0.62 | 3.12 | 9.52 | 3.75 | 3.05 |
| 1998 | Seibu | Jap Pac | Intl | | - | 23 | 8 | 8 | 0.00 | 52 | 0 | 1 | 0 | 0 | 0 | 5 | 111.0 | 112 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.01 | 9.08 | 0.00 | 0.00 | 0.00 | 2.19 | 0.00 |
| 1999 | Seibu | Jap Pac | Intl | | - | 24 | 5 | 8 | 4.61 | 41 | 0 | 0 | 0 | 0 | 0 | 0 | 113.1 | 116 | 62 | 58 | 11 | 54 | 128 | 0 | 0 | 0 | 1.50 | 9.21 | 0.87 | 4.29 | 10.16 | 4.92 | 2.37 |
| 2000 | Seibu | Jap Pac | Intl | | 19 | 25 | 5 | 6 | 1.83 | 58 | 0 | 0 | 0 | 0 | 0 | 23 | 78.2 | 51 | 16 | 16 | 6 | 20 | 101 | 0 | 0 | 0 | 0.90 | 5.83 | 0.69 | 2.29 | 11.56 | 1.83 | 5.05 |
| 2002 | Seibu | Jap Pac | Intl | | - | 27 | 6 | 7 | 2.07 | 71 | 0 | 0 | 0 | 0 | 0 | 1 | 78.1 | 61 | 25 | 18 | 4 | 29 | 102 | 0 | 0 | 0 | 1.15 | 7.01 | 0.46 | 3.33 | 11.72 | 2.87 | 3.52 |
| 2003 | Seibu | Jap Pac | Intl | | - | 28 | 7 | 3 | 0.00 | 61 | 0 | 0 | 0 | 0 | 0 | 2 | 70.0 | 55 | 11 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0.81 | 7.07 | 0.00 | 0.26 | 0.00 | 1.41 | 0.00 |
| 2004 | Seibu | Jap Pac | Intl | | - | 29 | 0 | 4 | 4.59 | 34 | 0 | 0 | 0 | 0 | 0 | 4 | 49.0 | 50 | 35 | 25 | 5 | 38 | 49 | 0 | 0 | 0 | 1.80 | 9.18 | 0.92 | 6.98 | 9.00 | 6.43 | 1.29 |
| 2005 | Seibu | Jap Pac | Intl | | - | 30 | 2 | 2 | 4.22 | 48 | 0 | 0 | 0 | 0 | 0 | 5 | 49.0 | 44 | 24 | 23 | 5 | 19 | 60 | 0 | 0 | 0 | 1.29 | 8.08 | 0.92 | 3.49 | 11.02 | 4.41 | 3.16 |