| 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 |
| 1996 | Yakult | Jap Cen | Intl | - | 18 | 1 | 0 | 3.38 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 8.0 | 6 | 3 | 3 | 0 | 13 | 9 | 0 | 0 | 0 | 2.38 | 6.75 | 0.00 | 14.63 | 10.13 | 3.38 | 0.69 | |
| 1997 | Yakult | Jap Cen | Intl | - | 19 | 0 | 0 | 9.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 2 | 2 | 2 | 1 | 6 | 2 | 0 | 0 | 0 | 4.00 | 9.00 | 4.50 | 27.00 | 9.00 | 9.00 | 0.33 | |
| 1999 | Yakult | Jap Cen | Intl | - | 21 | 0 | 1 | 6.28 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 28.2 | 32 | 21 | 20 | 6 | 27 | 21 | 0 | 0 | 0 | 2.06 | 10.05 | 1.88 | 8.48 | 6.59 | 6.59 | 0.78 | |
| 2000 | Yakult | Jap Cen | Intl | - | 22 | 4 | 3 | 3.30 | 45 | 0 | 0 | 0 | 0 | 0 | 0 | 76.1 | 66 | 29 | 28 | 7 | 36 | 68 | 0 | 0 | 0 | 1.34 | 7.78 | 0.83 | 4.24 | 8.02 | 3.42 | 1.89 | |
| 2002 | Yakult | Jap Cen | Intl | - | 24 | 6 | 2 | 1.51 | 69 | 0 | 0 | 0 | 0 | 0 | 5 | 89.2 | 63 | 15 | 15 | 7 | 12 | 109 | 0 | 0 | 0 | 0.84 | 6.32 | 0.70 | 1.20 | 10.94 | 1.51 | 9.08 | |
| 2003 | Yakult | Jap Cen | Intl | - | 25 | 6 | 1 | 1.99 | 36 | 0 | 0 | 0 | 0 | 0 | 1 | 45.1 | 37 | 10 | 10 | 4 | 10 | 61 | 0 | 0 | 0 | 1.04 | 7.35 | 0.79 | 1.99 | 12.11 | 1.99 | 6.10 | |
| 2004 | Yakult | Jap Cen | Intl | - | 26 | 4 | 2 | 2.05 | 38 | 0 | 0 | 0 | 0 | 0 | 5 | 52.2 | 38 | 12 | 12 | 5 | 10 | 69 | 0 | 0 | 0 | 0.91 | 6.49 | 0.85 | 1.71 | 11.79 | 2.05 | 6.90 | |
| 2005 | Yakult | Jap Cen | Intl | - | 27 | 4 | 3 | 1.95 | 61 | 0 | 0 | 0 | 0 | 0 | 37 | 73.2 | 51 | 16 | 16 | 6 | 15 | 91 | 0 | 0 | 0 | 0.90 | 6.23 | 0.73 | 1.83 | 11.12 | 1.95 | 6.07 | |
| 2006 | Yakult | Jap Cen | Intl | - | 28 | 0 | 0 | 4.35 | 11 | 0 | 0 | 0 | 0 | 9 | 6 | 10.1 | 8 | 5 | 5 | 2 | 4 | 14 | 0 | 0 | 0 | 1.16 | 6.97 | 1.74 | 3.48 | 12.19 | 4.35 | 3.50 | |
| 2011 | Yakult Swallows | Jap Cen | Intl | - | 33 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 27.00 | 0.00 | 0.00 |
| year | team name | league | level | mlb | # | age | pos | tbc+ | g | ab | r | h | 2b | 3b | hr | rbi | sb | cs | bb | so | hbp | sh | sf | ibb | gdp | tb | pa | xbh | 1b | avg | obp | slg | ops | seca | iso | babip | bb% | so% | so/bb | ab/hr |
| 2002 | Yakult | Jap Cen | Intl | - | 24 | P | 69 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 0 | 1 | .200 | .200 | .200 | .400 | .000 | .000 | .333 | 0.00 | 40.00 | 0.00 | 0.00 | ||
| 2003 | Yakult | Jap Cen | Intl | - | 25 | P | 36 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | ||
| 2004 | Yakult | Jap Cen | Intl | - | 26 | P | 38 | 3 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 3 | 1 | 0 | .333 | .333 | 1.333 | 1.666 | .000 | 1.000 | .000 | 0.00 | 33.33 | 0.00 | 3.00 |