
| Season | Team | ERA | G | W | L | SV | HLD | IP | H | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | 21 Seasons | 5.31 | 646 | 49 | 55 | 4 | 65 | 911.0 | 861 | 91 | 617 | 914 | 1.62 |
| 2025 | 두산 | 6.86 | 45 | 2 | 1 | 0 | 9 | 21.0 | 29 | 4 | 14 | 19 | 2.05 |
| 2024 | SSG | 8.18 | 26 | 2 | 1 | 0 | 5 | 22.0 | 23 | 4 | 20 | 27 | 1.95 |
| 2023 | SSG | 4.50 | 73 | 4 | 1 | 0 | 13 | 58.0 | 49 | 3 | 42 | 66 | 1.57 |
| 2022 | SSG | 3.72 | 45 | 1 | 0 | 0 | 7 | 38.0 | 35 | 1 | 20 | 35 | 1.45 |
| 2021 | LG | 3.86 | 3 | 0 | 0 | 0 | 0 | 2.0 | 3 | 0 | 0 | 1 | 1.50 |
| 2020 | 롯데 | 5.74 | 24 | 1 | 0 | 0 | 0 | 15.0 | 14 | 3 | 11 | 11 | 1.67 |
| 2019 | 롯데 | 4.76 | 75 | 2 | 7 | 0 | 15 | 62.0 | 58 | 6 | 36 | 72 | 1.52 |
| 2018 | 롯데 | 6.96 | 43 | 2 | 3 | 0 | 7 | 32.0 | 33 | 3 | 23 | 39 | 1.75 |
| 2017 | KIA | 4.28 | 40 | 3 | 1 | 0 | 4 | 40.0 | 44 | 1 | 22 | 35 | 1.65 |
| 2016 | KIA | 6.07 | 24 | 0 | 2 | 0 | 2 | 46.0 | 54 | 6 | 29 | 52 | 1.80 |
| 2015 | SK | 6.18 | 30 | 0 | 3 | 0 | 0 | 51.0 | 61 | 8 | 31 | 43 | 1.80 |
| 2014 | SK | 9.18 | 21 | 2 | 5 | 0 | 1 | 51.0 | 67 | 11 | 38 | 40 | 2.06 |
| 2011 | SK | 4.26 | 35 | 5 | 8 | 0 | 0 | 105.0 | 87 | 4 | 69 | 89 | 1.49 |
| 2010 | SK | 5.15 | 51 | 8 | 6 | 2 | 1 | 106.0 | 106 | 16 | 61 | 101 | 1.58 |
| 2009 | SK | 4.33 | 39 | 11 | 10 | 2 | 1 | 126.0 | 98 | 12 | 81 | 152 | 1.42 |
| 2008 | SK | 0.00 | 1 | 0 | 0 | 0 | 0 | 1.0 | 0 | 0 | 1 | 1 | 1.00 |
| 2007 | SK | 5.40 | 1 | 0 | 0 | 0 | 0 | 1.0 | 2 | 1 | 0 | 2 | 2.00 |
| 2006 | SK | 9.39 | 14 | 0 | 2 | 0 | 0 | 23.0 | 20 | 1 | 33 | 22 | 2.30 |
| 2005 | SK | 3.59 | 19 | 4 | 4 | 0 | 0 | 57.0 | 28 | 2 | 47 | 67 | 1.32 |
| 2004 | SK | 5.96 | 31 | 2 | 1 | 0 | 0 | 45.0 | 45 | 5 | 38 | 37 | 1.84 |
| 2002 | 롯데 | 0.00 | 6 | 0 | 0 | 0 | 0 | 3.0 | 5 | 0 | 1 | 3 | 2.00 |
| Category | Stats | KBO Rank | Team Rank |
|---|---|---|---|
| G | 646 | - | - |
| ERA | 5.31 | - | - |
| IP | 911.0 | - | - |
| W | 49 | - | - |
| L | 55 | - | - |
| SV | 4 | - | - |
| HLD | 65 | - | - |
| SO | 914 | - | - |
| H | 861 | - | - |
| HR | 91 | - | - |
| BB | 617 | - | - |
| R | 590 | - | - |
| ER | 537 | - | - |
| HBP | 82 | - | - |
| WHIP | 1.62 | - | - |