| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 13 Seasons | 4.25 | 575 | 26 | 21 | 14 | 60 | 638.0 | 288 | 528 | 1.37 | ||
| 2017 | 넥센 | 10.45 | 7 | 0 | 0 | 0 | 0 | 10.0 | 0 | 0 | 4 | 7 | 1.80 |
| 2016 | 넥센 | 4.10 | 61 | 6 | 1 | 0 | 12 | 63.0 | 0 | 0 | 34 | 52 | 1.51 |
| 2015 | 넥센 | 5.06 | 35 | 0 | 0 | 0 | 0 | 37.0 | 0 | 0 | 17 | 33 | 1.43 |
| 2014 | 넥센 | 4.78 | 56 | 3 | 3 | 0 | 7 | 64.0 | 0 | 0 | 30 | 55 | 1.36 |
| 2013 | 넥센 | 4.09 | 29 | 4 | 1 | 1 | 1 | 33.0 | 0 | 0 | 18 | 31 | 1.52 |
| 2011 | 넥센 | 3.35 | 45 | 1 | 4 | 0 | 8 | 48.0 | 0 | 0 | 24 | 46 | 1.27 |
| 2010 | 넥센 | 3.04 | 58 | 3 | 2 | 0 | 2 | 56.0 | 0 | 0 | 28 | 43 | 1.41 |
| 2009 | 한화 | 4.97 | 54 | 0 | 0 | 1 | 7 | 50.0 | 0 | 0 | 23 | 39 | 1.68 |
| 2008 | 한화 | 2.91 | 64 | 2 | 1 | 2 | 7 | 92.0 | 0 | 0 | 31 | 67 | 1.02 |
| 2007 | 한화 | 4.50 | 11 | 0 | 1 | 0 | 1 | 12.0 | 0 | 0 | 6 | 7 | 1.75 |
| 2004 | 한화 | 4.83 | 33 | 2 | 1 | 2 | 1 | 41.0 | 0 | 0 | 22 | 37 | 1.41 |
| 2003 | 한화 | 4.06 | 63 | 3 | 2 | 2 | 8 | 68.0 | 0 | 0 | 30 | 57 | 1.26 |
| 2002 | 한화 | 5.40 | 59 | 2 | 5 | 6 | 6 | 60.0 | 0 | 0 | 21 | 54 | 1.42 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 575 | - | - |
| ERA | 4.25 | - | - |
| IP | 638.0 | - | - |
| W | 26 | - | - |
| L | 21 | - | - |
| SV | 14 | - | - |
| HLD | 60 | - | - |
| SO | 528 | - | - |
| H | 0 | - | - |
| HR | 0 | - | - |
| BB | 288 | - | - |
| R | 331 | - | - |
| ER | 301 | - | - |
| HBP | 86 | - | - |
| WHIP | 1.37 | - | - |
Yagoonara