| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 15 Seasons | 4.60 | 535 | 38 | 40 | 21 | 94 | 665.0 | 280 | 453 | 1.48 | ||
| 2021 | KT | 15.55 | 16 | 0 | 1 | 0 | 1 | 11.0 | 0 | 0 | 7 | 9 | 3.18 |
| 2020 | KT | 2.51 | 49 | 3 | 1 | 6 | 9 | 46.0 | 0 | 0 | 12 | 27 | 1.17 |
| 2019 | 키움 | 9.72 | 19 | 0 | 2 | 0 | 3 | 16.0 | 0 | 0 | 4 | 12 | 2.06 |
| 2018 | 넥센 | 4.28 | 64 | 7 | 6 | 0 | 24 | 61.0 | 0 | 0 | 14 | 54 | 1.31 |
| 2017 | 넥센 | 5.47 | 55 | 6 | 2 | 6 | 18 | 52.0 | 0 | 0 | 17 | 58 | 1.52 |
| 2016 | 넥센 | 4.45 | 67 | 5 | 7 | 0 | 25 | 64.0 | 0 | 0 | 27 | 56 | 1.50 |
| 2013 | 넥센 | 4.31 | 28 | 1 | 3 | 0 | 1 | 39.0 | 0 | 0 | 11 | 18 | 1.38 |
| 2012 | 넥센 | 5.27 | 27 | 3 | 1 | 0 | 0 | 41.0 | 0 | 0 | 18 | 17 | 1.46 |
| 2011 | 넥센 | 3.49 | 56 | 5 | 3 | 1 | 5 | 87.0 | 0 | 0 | 42 | 52 | 1.54 |
| 2010 | 넥센 | 4.32 | 52 | 1 | 2 | 0 | 4 | 75.0 | 0 | 0 | 45 | 35 | 1.55 |
| 2009 | 히어로즈 | 4.26 | 52 | 7 | 7 | 7 | 4 | 88.0 | 0 | 0 | 44 | 58 | 1.34 |
| 2008 | 우리 | 8.59 | 5 | 0 | 0 | 0 | 0 | 7.0 | 0 | 0 | 6 | 7 | 2.57 |
| 2007 | 현대 | 11.70 | 9 | 0 | 1 | 0 | 0 | 10.0 | 0 | 0 | 6 | 9 | 2.10 |
| 2006 | 현대 | 3.62 | 22 | 0 | 2 | 1 | 0 | 37.0 | 0 | 0 | 17 | 25 | 1.41 |
| 2005 | 현대 | 2.45 | 14 | 0 | 2 | 0 | 0 | 25.0 | 0 | 0 | 10 | 16 | 1.28 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 535 | - | - |
| ERA | 4.60 | - | - |
| IP | 665.0 | - | - |
| W | 38 | - | - |
| L | 40 | - | - |
| SV | 21 | - | - |
| HLD | 94 | - | - |
| SO | 453 | - | - |
| H | 0 | - | - |
| HR | 0 | - | - |
| BB | 280 | - | - |
| R | 377 | - | - |
| ER | 340 | - | - |
| HBP | 33 | - | - |
| WHIP | 1.48 | - | - |
Yagoonara