| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 15 Seasons | 3.07 | 508 | 54 | 64 | 153 | 18 | 894.0 | 344 | 838 | 1.18 | ||
| 2005 | KIA | 36.00 | 4 | 0 | 0 | 0 | 0 | 1.0 | 0 | 0 | 2 | 0 | 7.00 |
| 2004 | KIA | 2.14 | 38 | 1 | 0 | 1 | 5 | 21.0 | 0 | 0 | 4 | 18 | 0.71 |
| 2003 | 현대 | 5.63 | 36 | 0 | 3 | 0 | 4 | 40.0 | 0 | 0 | 32 | 41 | 1.78 |
| 2002 | SK | 4.23 | 46 | 6 | 8 | 6 | 3 | 78.0 | 0 | 0 | 27 | 64 | 1.38 |
| 2001 | SK | 3.55 | 46 | 8 | 9 | 9 | 3 | 106.0 | 0 | 0 | 35 | 75 | 1.18 |
| 2000 | 현대 | 2.08 | 9 | 0 | 0 | 0 | 3 | 4.0 | 0 | 0 | 2 | 4 | 1.00 |
| 1999 | 현대 | 5.95 | 17 | 6 | 2 | 2 | 0 | 56.0 | 0 | 0 | 20 | 52 | 1.46 |
| 1998 | 현대 | 4.18 | 40 | 5 | 4 | 2 | 0 | 56.0 | 0 | 0 | 16 | 40 | 1.45 |
| 1997 | 쌍방울 | 2.90 | 52 | 4 | 6 | 28 | 0 | 77.0 | 0 | 0 | 23 | 74 | 1.13 |
| 1996 | 쌍방울 | 1.81 | 48 | 5 | 5 | 20 | 0 | 59.0 | 0 | 0 | 24 | 74 | 1.10 |
| 1995 | 쌍방울 | 5.06 | 8 | 0 | 1 | 3 | 0 | 10.0 | 0 | 0 | 6 | 9 | 1.70 |
| 1994 | 쌍방울 | 2.39 | 44 | 2 | 8 | 24 | 0 | 98.0 | 0 | 0 | 38 | 93 | 1.09 |
| 1993 | 쌍방울 | 1.42 | 41 | 1 | 4 | 23 | 0 | 88.0 | 0 | 0 | 33 | 96 | 0.95 |
| 1992 | 쌍방울 | 3.17 | 30 | 7 | 7 | 8 | 0 | 54.0 | 0 | 0 | 24 | 65 | 1.33 |
| 1991 | 쌍방울 | 1.64 | 49 | 9 | 7 | 27 | 0 | 142.0 | 0 | 0 | 58 | 133 | 0.90 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 508 | - | - |
| ERA | 3.07 | - | - |
| IP | 894.0 | - | - |
| W | 54 | - | - |
| L | 64 | - | - |
| SV | 153 | - | - |
| HLD | 18 | - | - |
| SO | 838 | - | - |
| H | 0 | - | - |
| HR | 0 | - | - |
| BB | 344 | - | - |
| R | 329 | - | - |
| ER | 305 | - | - |
| HBP | 46 | - | - |
| WHIP | 1.18 | - | - |
Yagoonara