| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 16 Seasons | 4.67 | 584 | 41 | 57 | 25 | 84 | 790.0 | 289 | 525 | 1.43 | ||
| 2021 | 키움 | 9.31 | 22 | 1 | 1 | 1 | 0 | 19.0 | 0 | 0 | 4 | 11 | 2.05 |
| 2020 | 키움 | 5.40 | 25 | 3 | 1 | 0 | 2 | 18.0 | 0 | 0 | 0 | 13 | 1.22 |
| 2019 | 키움 | 2.32 | 57 | 3 | 3 | 18 | 3 | 54.0 | 0 | 0 | 7 | 41 | 1.13 |
| 2018 | 넥센 | 6.19 | 61 | 3 | 6 | 1 | 15 | 52.0 | 0 | 0 | 13 | 36 | 1.42 |
| 2017 | 넥센 | 4.76 | 57 | 2 | 7 | 1 | 18 | 73.0 | 0 | 0 | 15 | 56 | 1.52 |
| 2016 | 넥센 | 4.41 | 55 | 3 | 2 | 2 | 7 | 51.0 | 0 | 0 | 17 | 40 | 1.31 |
| 2015 | 넥센 | 9.33 | 9 | 0 | 2 | 0 | 0 | 18.0 | 0 | 0 | 12 | 11 | 2.39 |
| 2014 | 넥센 | 6.45 | 21 | 5 | 6 | 0 | 0 | 74.0 | 0 | 0 | 33 | 31 | 1.78 |
| 2013 | 넥센 | 2.40 | 10 | 4 | 0 | 0 | 1 | 41.0 | 0 | 0 | 18 | 31 | 1.12 |
| 2012 | 넥센 | 5.19 | 26 | 1 | 3 | 1 | 4 | 26.0 | 0 | 0 | 13 | 18 | 1.50 |
| 2011 | 넥센 | 3.53 | 64 | 2 | 2 | 1 | 20 | 43.0 | 0 | 0 | 18 | 29 | 1.30 |
| 2010 | 넥센 | 2.38 | 69 | 1 | 1 | 0 | 9 | 45.0 | 0 | 0 | 15 | 28 | 1.20 |
| 2009 | 히어로즈 | 4.08 | 52 | 1 | 2 | 0 | 5 | 39.0 | 0 | 0 | 17 | 25 | 1.44 |
| 2006 | 현대 | 4.61 | 4 | 1 | 1 | 0 | 0 | 13.0 | 0 | 0 | 10 | 5 | 1.46 |
| 2005 | 현대 | 6.01 | 22 | 1 | 11 | 0 | 0 | 70.0 | 0 | 0 | 44 | 37 | 1.76 |
| 2004 | 현대 | 3.99 | 30 | 10 | 9 | 0 | 0 | 149.0 | 0 | 0 | 53 | 113 | 1.26 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 584 | - | - |
| ERA | 4.67 | - | - |
| IP | 790.0 | - | - |
| W | 41 | - | - |
| L | 57 | - | - |
| SV | 25 | - | - |
| HLD | 84 | - | - |
| SO | 525 | - | - |
| H | 0 | - | - |
| HR | 0 | - | - |
| BB | 289 | - | - |
| R | 448 | - | - |
| ER | 410 | - | - |
| HBP | 28 | - | - |
| WHIP | 1.43 | - | - |
Yagoonara