| year | team name | league | level | mlb | # | age | w | l | era | g | gs | cg | sho | gr | gf | sv | ip | h | r | er | hr | bb | so | wp | bk | hb | whip | h9 | hr9 | bb9 | so9 | ra9 | so/bb |
| 1991 | Nippon | Jap Pac | Intl | - | 20 | 0 | 0 | 2.00 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 7 | 3 | 2 | 1 | 3 | 2 | 0 | 0 | 0 | 1.11 | 7.00 | 1.00 | 3.00 | 2.00 | 3.00 | 0.67 | |
| 1994 | Nippon | Jap Pac | Intl | - | 23 | 0 | 2 | 5.14 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 21.0 | 26 | 14 | 12 | 1 | 6 | 10 | 0 | 0 | 0 | 1.52 | 11.14 | 0.43 | 2.57 | 4.29 | 6.00 | 1.67 | |
| 1995 | Nippon | Jap Pac | Intl | - | 24 | 5 | 7 | 3.07 | 29 | 0 | 3 | 0 | 0 | 0 | 0 | 132.0 | 106 | 52 | 45 | 15 | 46 | 113 | 0 | 0 | 0 | 1.15 | 7.23 | 1.02 | 3.14 | 7.70 | 3.55 | 2.46 | |
| 1996 | Nippon | Jap Pac | Intl | - | 25 | 10 | 9 | 3.99 | 27 | 0 | 4 | 1 | 0 | 0 | 0 | 176.0 | 160 | 80 | 78 | 15 | 51 | 144 | 0 | 0 | 0 | 1.20 | 8.18 | 0.77 | 2.61 | 7.36 | 4.09 | 2.82 | |
| 1997 | Nippon | Jap Pac | Intl | - | 26 | 7 | 6 | 4.74 | 27 | 0 | 2 | 0 | 0 | 0 | 3 | 114.0 | 125 | 60 | 60 | 19 | 47 | 75 | 0 | 0 | 0 | 1.51 | 9.87 | 1.50 | 3.71 | 5.92 | 4.74 | 1.60 | |
| 1998 | Nippon | Jap Pac | Intl | - | 27 | 11 | 8 | 4.11 | 27 | 0 | 10 | 2 | 0 | 0 | 0 | 181.2 | 186 | 90 | 83 | 26 | 59 | 110 | 0 | 0 | 0 | 1.35 | 9.21 | 1.29 | 2.92 | 5.45 | 4.46 | 1.86 | |
| 1999 | Nippon | Jap Pac | Intl | - | 28 | 13 | 11 | 3.81 | 27 | 0 | 9 | 2 | 0 | 0 | 0 | 189.0 | 181 | 86 | 80 | 14 | 93 | 158 | 0 | 0 | 0 | 1.45 | 8.62 | 0.67 | 4.43 | 7.52 | 4.10 | 1.70 | |
| 2000 | Nippon | Jap Pac | Intl | - | 29 | 6 | 12 | 5.21 | 24 | 0 | 6 | 0 | 0 | 0 | 0 | 155.1 | 162 | 92 | 90 | 16 | 77 | 98 | 0 | 0 | 0 | 1.54 | 9.39 | 0.93 | 4.46 | 5.68 | 5.33 | 1.27 | |
| 2002 | Nippon | Jap Pac | Intl | 18 | 31 | 1 | 2 | 6.88 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 17.0 | 25 | 14 | 13 | 4 | 10 | 12 | 0 | 0 | 0 | 2.06 | 13.24 | 2.12 | 5.29 | 6.35 | 7.41 | 1.20 | |
| 2003 | Nippon | Jap Pac | Intl | 18 | 32 | 0 | 2 | 6.41 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 26.2 | 37 | 20 | 19 | 7 | 8 | 17 | 0 | 0 | 0 | 1.69 | 12.49 | 2.36 | 2.70 | 5.74 | 6.75 | 2.13 | |
| 2004 | Nippon | Jap Pac | Intl | - | 33 | 1 | 6 | 6.16 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 57.0 | 67 | 41 | 39 | 9 | 24 | 36 | 0 | 0 | 0 | 1.60 | 10.58 | 1.42 | 3.79 | 5.68 | 6.47 | 1.50 | |
| 2005 | Nippon | Jap Pac | Intl | - | 34 | 2 | 2 | 5.96 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 22.2 | 26 | 15 | 15 | 7 | 3 | 16 | 1 | 0 | 0 | 1.28 | 10.32 | 2.78 | 1.19 | 6.35 | 5.96 | 5.33 |