| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 17 Seasons | 3.57 | 283 | 100 | 74 | 22 | 2 | 1311.0 | 523 | 1081 | 1.29 | ||
| 2012 | LG | 13.50 | 1 | 0 | 1 | 0 | 0 | 3.0 | 0 | 0 | 4 | 0 | 3.00 |
| 2011 | LG | 0.00 | 2 | 0 | 0 | 0 | 0 | 1.0 | 0 | 0 | 2 | 1 | 2.00 |
| 2010 | KIA | 6.55 | 14 | 0 | 0 | 0 | 2 | 22.0 | 0 | 0 | 19 | 14 | 2.27 |
| 2009 | KIA | 6.33 | 10 | 3 | 5 | 0 | 0 | 42.0 | 0 | 0 | 22 | 25 | 1.60 |
| 2008 | KIA | 4.83 | 20 | 5 | 10 | 0 | 0 | 85.0 | 0 | 0 | 50 | 37 | 1.62 |
| 2007 | KIA | 4.11 | 17 | 7 | 6 | 0 | 0 | 76.0 | 0 | 0 | 45 | 47 | 1.45 |
| 2006 | KIA | 18.00 | 1 | 0 | 0 | 0 | 0 | 1.0 | 0 | 0 | 1 | 1 | 4.00 |
| 2004 | KIA | 10.57 | 3 | 0 | 1 | 0 | 0 | 7.0 | 0 | 0 | 9 | 7 | 2.57 |
| 2003 | KIA | 9.45 | 4 | 1 | 1 | 0 | 0 | 13.0 | 0 | 0 | 7 | 13 | 1.92 |
| 2000 | 해태 | 3.17 | 37 | 8 | 6 | 13 | 0 | 105.0 | 0 | 0 | 43 | 117 | 1.32 |
| 1999 | 해태 | 2.45 | 1 | 0 | 0 | 0 | 0 | 3.0 | 0 | 0 | 3 | 0 | 2.00 |
| 1998 | 해태 | 3.26 | 28 | 12 | 11 | 0 | 0 | 179.0 | 0 | 0 | 55 | 183 | 1.27 |
| 1997 | 해태 | 3.14 | 28 | 17 | 6 | 1 | 0 | 180.0 | 0 | 0 | 65 | 140 | 1.22 |
| 1996 | 해태 | 2.37 | 31 | 16 | 8 | 3 | 0 | 159.0 | 0 | 0 | 40 | 146 | 0.97 |
| 1995 | 해태 | 2.57 | 24 | 14 | 6 | 0 | 0 | 168.0 | 0 | 0 | 43 | 163 | 1.04 |
| 1994 | 해태 | 4.20 | 31 | 7 | 8 | 3 | 0 | 137.0 | 0 | 0 | 56 | 90 | 1.25 |
| 1993 | 해태 | 3.11 | 31 | 10 | 5 | 2 | 0 | 124.0 | 0 | 0 | 59 | 97 | 1.39 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 283 | - | - |
| ERA | 3.57 | - | - |
| IP | 1311.0 | - | - |
| W | 100 | - | - |
| L | 74 | - | - |
| SV | 22 | - | - |
| HLD | 2 | - | - |
| SO | 1,081 | - | - |
| H | 0 | - | - |
| HR | 0 | - | - |
| BB | 523 | - | - |
| R | 582 | - | - |
| ER | 520 | - | - |
| HBP | 69 | - | - |
| WHIP | 1.29 | - | - |
Yagoonara