| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 19 Seasons | 4.75 | 528 | 35 | 50 | 17 | 56 | 774.0 | 314 | 434 | 1.53 | ||
| 2016 | 넥센 | 7.00 | 15 | 0 | 3 | 0 | 1 | 18.0 | 0 | 0 | 5 | 8 | 2.06 |
| 2015 | 넥센 | 4.50 | 2 | 0 | 0 | 0 | 0 | 2.0 | 0 | 0 | 0 | 0 | 1.50 |
| 2014 | 넥센 | 12.27 | 7 | 0 | 0 | 0 | 0 | 7.0 | 0 | 0 | 5 | 2 | 2.86 |
| 2013 | 넥센 | 3.00 | 56 | 5 | 2 | 1 | 11 | 69.0 | 0 | 0 | 24 | 29 | 1.35 |
| 2012 | 넥센 | 4.67 | 40 | 4 | 4 | 1 | 8 | 44.0 | 0 | 0 | 17 | 32 | 1.41 |
| 2011 | 넥센 | 3.78 | 44 | 3 | 3 | 1 | 7 | 52.0 | 0 | 0 | 19 | 31 | 1.33 |
| 2010 | 롯데 | 6.85 | 43 | 3 | 9 | 1 | 5 | 46.0 | 0 | 0 | 19 | 27 | 1.63 |
| 2009 | 롯데 | 3.03 | 57 | 1 | 3 | 8 | 9 | 74.0 | 0 | 0 | 28 | 50 | 1.42 |
| 2007 | 롯데 | 2.45 | 7 | 0 | 0 | 0 | 0 | 7.0 | 0 | 0 | 4 | 8 | 1.86 |
| 2006 | 롯데 | 4.15 | 33 | 1 | 3 | 0 | 4 | 43.0 | 0 | 0 | 15 | 22 | 1.42 |
| 2005 | 롯데 | 4.44 | 54 | 2 | 3 | 1 | 5 | 75.0 | 0 | 0 | 28 | 46 | 1.52 |
| 2004 | 롯데 | 4.19 | 30 | 1 | 4 | 0 | 0 | 58.0 | 0 | 0 | 23 | 33 | 1.57 |
| 2003 | 롯데 | 5.20 | 44 | 7 | 8 | 1 | 5 | 110.0 | 0 | 0 | 51 | 67 | 1.61 |
| 2002 | 롯데 | 6.32 | 19 | 1 | 3 | 0 | 1 | 31.0 | 0 | 0 | 8 | 19 | 1.61 |
| 2001 | 롯데 | 9.00 | 7 | 0 | 0 | 0 | 0 | 5.0 | 0 | 0 | 4 | 2 | 2.60 |
| 2000 | 롯데 | 6.43 | 10 | 1 | 2 | 0 | 0 | 14.0 | 0 | 0 | 11 | 10 | 1.86 |
| 1999 | 롯데 | 7.13 | 10 | 2 | 1 | 1 | 0 | 17.0 | 0 | 0 | 12 | 8 | 2.00 |
| 1998 | 롯데 | 4.44 | 35 | 3 | 2 | 2 | 0 | 71.0 | 0 | 0 | 30 | 26 | 1.39 |
| 1997 | 롯데 | 6.51 | 15 | 1 | 0 | 0 | 0 | 27.0 | 0 | 0 | 11 | 14 | 1.56 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 528 | - | - |
| ERA | 4.75 | - | - |
| IP | 774.0 | - | - |
| W | 35 | - | - |
| L | 50 | - | - |
| SV | 17 | - | - |
| HLD | 56 | - | - |
| SO | 434 | - | - |
| H | 0 | - | - |
| HR | 0 | - | - |
| BB | 314 | - | - |
| R | 447 | - | - |
| ER | 409 | - | - |
| HBP | 63 | - | - |
| WHIP | 1.53 | - | - |
Yagoonara