| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 16 Seasons | 2.98 | 613 | 126 | 89 | 227 | 1 | 1831.0 | 498 | 1145 | 1.19 | ||
| 2000 | LG | 5.24 | 32 | 6 | 4 | 4 | 1 | 127.0 | 0 | 0 | 42 | 85 | 1.45 |
| 1999 | LG | 2.88 | 46 | 3 | 9 | 26 | 0 | 68.0 | 0 | 0 | 13 | 48 | 1.22 |
| 1998 | LG | 3.45 | 32 | 18 | 6 | 2 | 0 | 175.0 | 0 | 0 | 45 | 116 | 1.26 |
| 1997 | LG | 3.70 | 28 | 12 | 8 | 0 | 0 | 177.0 | 0 | 0 | 43 | 121 | 1.16 |
| 1996 | LG | 2.82 | 48 | 16 | 7 | 9 | 0 | 130.0 | 0 | 0 | 36 | 92 | 1.22 |
| 1995 | LG | 1.43 | 48 | 4 | 2 | 30 | 0 | 69.0 | 0 | 0 | 10 | 44 | 1.00 |
| 1994 | LG | 2.56 | 42 | 5 | 5 | 30 | 0 | 63.0 | 0 | 0 | 10 | 44 | 0.89 |
| 1993 | LG | 1.55 | 50 | 6 | 2 | 26 | 0 | 75.0 | 0 | 0 | 20 | 60 | 0.97 |
| 1992 | LG | 5.16 | 14 | 5 | 4 | 0 | 0 | 61.0 | 0 | 0 | 17 | 27 | 1.30 |
| 1991 | LG | 2.79 | 41 | 12 | 11 | 10 | 0 | 190.0 | 0 | 0 | 62 | 129 | 1.23 |
| 1990 | LG | 2.04 | 33 | 12 | 5 | 5 | 0 | 149.0 | 0 | 0 | 38 | 119 | 1.07 |
| 1989 | MBC | 3.19 | 47 | 5 | 5 | 22 | 0 | 104.0 | 0 | 0 | 29 | 51 | 1.31 |
| 1988 | MBC | 4.47 | 34 | 3 | 5 | 11 | 0 | 98.0 | 0 | 0 | 31 | 51 | 1.52 |
| 1987 | MBC | 1.98 | 52 | 9 | 5 | 24 | 0 | 141.0 | 0 | 0 | 36 | 71 | 1.05 |
| 1986 | MBC | 1.67 | 60 | 9 | 9 | 26 | 0 | 178.0 | 0 | 0 | 59 | 74 | 1.05 |
| 1985 | MBC | 3.74 | 6 | 1 | 2 | 2 | 0 | 21.0 | 0 | 0 | 7 | 13 | 1.38 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 613 | - | - |
| ERA | 2.98 | - | - |
| IP | 1831.0 | - | - |
| W | 126 | - | - |
| L | 89 | - | - |
| SV | 227 | - | - |
| HLD | 1 | - | - |
| SO | 1,145 | - | - |
| H | 0 | - | - |
| HR | 0 | - | - |
| BB | 498 | - | - |
| R | 694 | - | - |
| ER | 606 | - | - |
| HBP | 61 | - | - |
| WHIP | 1.19 | - | - |
Yagoonara