| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 17 Seasons | 3.81 | 326 | 103 | 93 | 9 | 8 | 1613.0 | 731 | 1421 | 1.35 | ||
| 2015 | NC | 4.85 | 11 | 1 | 1 | 0 | 0 | 26.0 | 0 | 0 | 5 | 15 | 1.58 |
| 2014 | NC | 7.20 | 5 | 0 | 2 | 0 | 0 | 5.0 | 0 | 0 | 8 | 7 | 3.00 |
| 2010 | LG | 6.63 | 15 | 4 | 6 | 0 | 0 | 76.0 | 0 | 0 | 31 | 46 | 1.64 |
| 2009 | LG | 6.19 | 4 | 0 | 1 | 0 | 0 | 16.0 | 0 | 0 | 9 | 6 | 1.44 |
| 2008 | LG | 8.61 | 5 | 0 | 3 | 0 | 0 | 23.0 | 0 | 0 | 19 | 16 | 2.22 |
| 2007 | LG | 3.19 | 27 | 10 | 6 | 0 | 0 | 155.0 | 0 | 0 | 72 | 117 | 1.32 |
| 2006 | 두산 | 3.46 | 28 | 7 | 7 | 1 | 4 | 122.0 | 0 | 0 | 48 | 132 | 1.13 |
| 2005 | 두산 | 2.96 | 20 | 11 | 3 | 0 | 0 | 112.0 | 0 | 0 | 58 | 113 | 1.24 |
| 2004 | 두산 | 2.50 | 26 | 12 | 3 | 0 | 0 | 158.0 | 0 | 0 | 52 | 162 | 1.15 |
| 2003 | 두산 | 5.19 | 19 | 5 | 10 | 0 | 0 | 100.0 | 0 | 0 | 46 | 76 | 1.59 |
| 2002 | 두산 | 3.44 | 30 | 14 | 10 | 0 | 0 | 185.0 | 0 | 0 | 68 | 169 | 1.30 |
| 2001 | 두산 | 4.29 | 38 | 8 | 5 | 7 | 3 | 77.0 | 0 | 0 | 31 | 77 | 1.39 |
| 2000 | 두산 | 3.09 | 6 | 1 | 0 | 0 | 1 | 11.0 | 0 | 0 | 7 | 19 | 1.18 |
| 1999 | 두산 | 4.96 | 7 | 1 | 1 | 1 | 0 | 16.0 | 0 | 0 | 12 | 20 | 1.56 |
| 1998 | OB | 3.22 | 31 | 14 | 11 | 0 | 0 | 187.0 | 0 | 0 | 112 | 181 | 1.45 |
| 1997 | OB | 3.96 | 26 | 8 | 12 | 0 | 0 | 154.0 | 0 | 0 | 75 | 126 | 1.38 |
| 1996 | OB | 3.84 | 28 | 7 | 12 | 0 | 0 | 185.0 | 0 | 0 | 78 | 139 | 1.23 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 326 | - | - |
| ERA | 3.81 | - | - |
| IP | 1613.0 | - | - |
| W | 103 | - | - |
| L | 93 | - | - |
| SV | 9 | - | - |
| HLD | 8 | - | - |
| SO | 1,421 | - | - |
| H | 0 | - | - |
| HR | 0 | - | - |
| BB | 731 | - | - |
| R | 748 | - | - |
| ER | 683 | - | - |
| HBP | 66 | - | - |
| WHIP | 1.35 | - | - |
Yagoonara