
| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 12 Seasons | 4.13 | 475 | 38 | 31 | 23 | 61 | 682.0 | 354 | 550 | 1.42 | ||
| 2015 | SK | 4.65 | 26 | 1 | 0 | 0 | 1 | 31.0 | 0 | 0 | 13 | 26 | 1.58 |
| 2014 | SK | 6.19 | 38 | 1 | 0 | 0 | 4 | 48.0 | 0 | 0 | 28 | 42 | 1.52 |
| 2013 | SK | 5.56 | 44 | 2 | 4 | 0 | 3 | 43.0 | 0 | 0 | 24 | 35 | 1.47 |
| 2012 | SK | 4.29 | 48 | 6 | 3 | 1 | 10 | 65.0 | 0 | 0 | 35 | 46 | 1.54 |
| 2011 | SK | 2.79 | 21 | 2 | 0 | 0 | 2 | 29.0 | 0 | 0 | 8 | 15 | 0.93 |
| 2010 | SK | 6.75 | 8 | 0 | 0 | 0 | 0 | 10.0 | 0 | 0 | 10 | 6 | 2.50 |
| 2009 | LG | 4.13 | 47 | 5 | 3 | 11 | 1 | 56.0 | 0 | 0 | 29 | 47 | 1.61 |
| 2008 | LG | 6.19 | 48 | 1 | 4 | 1 | 8 | 68.0 | 0 | 0 | 32 | 39 | 1.49 |
| 2005 | 두산 | 4.03 | 16 | 1 | 2 | 0 | 1 | 22.0 | 0 | 0 | 11 | 20 | 1.59 |
| 2004 | 두산 | 2.59 | 60 | 9 | 7 | 3 | 14 | 94.0 | 0 | 0 | 39 | 79 | 1.17 |
| 2003 | 두산 | 3.65 | 52 | 6 | 2 | 5 | 10 | 116.0 | 0 | 0 | 78 | 83 | 1.58 |
| 2002 | 두산 | 2.96 | 67 | 4 | 6 | 2 | 7 | 97.0 | 0 | 0 | 47 | 112 | 1.14 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 475 | - | - |
| ERA | 4.13 | - | - |
| IP | 682.0 | - | - |
| W | 38 | - | - |
| L | 31 | - | - |
| SV | 23 | - | - |
| HLD | 61 | - | - |
| SO | 550 | - | - |
| H | 0 | - | - |
| HR | 0 | - | - |
| BB | 354 | - | - |
| R | 341 | - | - |
| ER | 313 | - | - |
| HBP | 31 | - | - |
| WHIP | 1.42 | - | - |