
| Year | Team | ERA | G | CG | SHO | W | L | SV | HLD | Win% | TBF | IP | H | HR | BB | HBP | SO | R | ER |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TOTAL | 4.96 | 700 | 0 | 0 | 37 | 46 | 50 | 140 | 0.446 | 3541 | 785 | 829 | 75 | 396 | 39 | 703 | 468 | 433 | |
| 2025 | LOTTE | 6.38 | 45 | 0 | 0 | 0 | 1 | 2 | 3 | 0.000 | 180 | 36 2/3 | 48 | 4 | 18 | 3 | 27 | 26 | 26 |
| 2024 | LOTTE | 4.15 | 74 | 0 | 0 | 8 | 4 | 2 | 17 | 0.667 | 322 | 73 2/3 | 71 | 5 | 26 | 5 | 56 | 40 | 34 |
| 2023 | LOTTE | 3.12 | 67 | 0 | 0 | 4 | 2 | 1 | 18 | 0.667 | 218 | 52 | 45 | 1 | 21 | 3 | 36 | 22 | 18 |
| 2022 | SSG | 9.00 | 8 | 0 | 0 | 0 | 0 | 1 | 0 | 0.000 | 37 | 8 | 9 | 2 | 4 | 1 | 3 | 8 | 8 |
| 2021 | SSG | 5.09 | 50 | 0 | 0 | 4 | 3 | 6 | 5 | 0.571 | 273 | 58 1/3 | 71 | 10 | 30 | 1 | 44 | 33 | 33 |
| 2020 | 키움 | 4.73 | 60 | 0 | 0 | 3 | 3 | 5 | 11 | 0.500 | 226 | 51 1/3 | 52 | 3 | 21 | 3 | 48 | 33 | 27 |
| 2019 | 키움 | 3.02 | 67 | 0 | 0 | 3 | 5 | 0 | 40 | 0.375 | 238 | 56 2/3 | 50 | 3 | 28 | 2 | 60 | 19 | 19 |
| 2018 | NEXEN | 5.17 | 58 | 0 | 0 | 2 | 3 | 18 | 14 | 0.400 | 239 | 55 2/3 | 53 | 9 | 23 | 1 | 68 | 32 | 32 |
| 2017 | NEXEN | 3.82 | 60 | 0 | 0 | 0 | 7 | 15 | 9 | 0.000 | 262 | 61 1/3 | 59 | 8 | 22 | 3 | 62 | 29 | 26 |
| 2016 | NEXEN | 4.62 | 67 | 0 | 0 | 6 | 5 | 0 | 21 | 0.545 | 331 | 74 | 77 | 6 | 34 | 1 | 76 | 40 | 38 |
| 2015 | NEXEN | 10.80 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0.000 | 30 | 5 | 10 | 1 | 5 | 0 | 2 | 8 | 6 |
| 2013 | NEXEN | 5.08 | 16 | 0 | 0 | 0 | 1 | 0 | 0 | 0.000 | 125 | 28 1/3 | 27 | 1 | 13 | 2 | 20 | 16 | 16 |
| 2012 | NEXEN | 4.73 | 33 | 0 | 0 | 2 | 1 | 0 | 0 | 0.667 | 210 | 45 2/3 | 42 | 4 | 39 | 2 | 36 | 24 | 24 |
| 2011 | NEXEN | 6.49 | 24 | 0 | 0 | 1 | 4 | 0 | 0 | 0.200 | 288 | 59 2/3 | 68 | 3 | 36 | 9 | 74 | 44 | 43 |
| 2010 | NEXEN | 6.20 | 17 | 0 | 0 | 1 | 2 | 0 | 0 | 0.333 | 210 | 45 | 52 | 5 | 26 | 2 | 35 | 33 | 31 |
| 2009 | SAMSUNG | 6.00 | 43 | 0 | 0 | 3 | 3 | 0 | 2 | 0.500 | 281 | 60 | 73 | 7 | 41 | 1 | 45 | 42 | 40 |
| 2008 | SAMSUNG | 7.90 | 9 | 0 | 0 | 0 | 1 | 0 | 0 | 0.000 | 71 | 13 2/3 | 22 | 3 | 9 | 0 | 11 | 19 | 12 |