| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 19 Seasons | 3.21 | 813 | 64 | 54 | 98 | 89 | 1092.0 | 296 | 920 | 1.20 | ||
| 2009 | SK | 4.15 | 5 | 0 | 0 | 0 | 1 | 4.0 | 0 | 0 | 1 | 5 | 1.00 |
| 2008 | SK | 2.68 | 52 | 1 | 2 | 4 | 13 | 47.0 | 0 | 0 | 15 | 33 | 1.26 |
| 2007 | SK | 1.57 | 64 | 2 | 3 | 9 | 16 | 74.0 | 0 | 0 | 17 | 59 | 0.97 |
| 2006 | SK | 4.69 | 51 | 6 | 2 | 1 | 11 | 63.0 | 0 | 0 | 10 | 46 | 1.44 |
| 2005 | SK | 3.28 | 52 | 5 | 4 | 10 | 6 | 60.0 | 0 | 0 | 15 | 56 | 1.13 |
| 2004 | SK | 3.08 | 55 | 6 | 6 | 9 | 10 | 79.0 | 0 | 0 | 26 | 85 | 1.33 |
| 2003 | SK | 1.97 | 65 | 6 | 5 | 30 | 2 | 77.0 | 0 | 0 | 19 | 75 | 1.16 |
| 2002 | SK | 3.27 | 56 | 9 | 5 | 6 | 5 | 82.0 | 0 | 0 | 21 | 63 | 1.11 |
| 2001 | SK | 5.63 | 59 | 2 | 5 | 12 | 9 | 76.0 | 0 | 0 | 25 | 77 | 1.59 |
| 2000 | 현대 | 3.05 | 74 | 8 | 6 | 8 | 16 | 94.0 | 0 | 0 | 20 | 99 | 1.03 |
| 1999 | 현대 | 3.43 | 51 | 1 | 1 | 1 | 0 | 44.0 | 0 | 0 | 5 | 48 | 1.20 |
| 1998 | 현대 | 3.51 | 52 | 3 | 1 | 1 | 0 | 51.0 | 0 | 0 | 14 | 41 | 1.35 |
| 1997 | 현대 | 2.84 | 55 | 7 | 2 | 4 | 0 | 92.0 | 0 | 0 | 32 | 64 | 1.14 |
| 1996 | 현대 | 2.11 | 68 | 6 | 5 | 3 | 0 | 94.0 | 0 | 0 | 29 | 76 | 0.98 |
| 1995 | 태평양 | 2.57 | 29 | 2 | 2 | 0 | 0 | 80.0 | 0 | 0 | 27 | 63 | 1.23 |
| 1994 | 태평양 | 6.60 | 8 | 0 | 0 | 0 | 0 | 15.0 | 0 | 0 | 4 | 10 | 1.47 |
| 1993 | 태평양 | 4.29 | 11 | 0 | 5 | 0 | 0 | 42.0 | 0 | 0 | 12 | 16 | 1.21 |
| 1991 | 태평양 | 7.20 | 4 | 0 | 0 | 0 | 0 | 10.0 | 0 | 0 | 1 | 2 | 1.60 |
| 1990 | 태평양 | 6.00 | 2 | 0 | 0 | 0 | 0 | 3.0 | 0 | 0 | 3 | 2 | 1.67 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 813 | - | - |
| ERA | 3.21 | - | - |
| IP | 1092.0 | - | - |
| W | 64 | - | - |
| L | 54 | - | - |
| SV | 98 | - | - |
| HLD | 89 | - | - |
| SO | 920 | - | - |
| H | 0 | - | - |
| HR | 0 | - | - |
| BB | 296 | - | - |
| R | 439 | - | - |
| ER | 390 | - | - |
| HBP | 65 | - | - |
| WHIP | 1.20 | - | - |
Yagoonara