| Season | Age | Team | G | GS | IP | K/9 | BB/9 | HR/9 | BABIP | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 37 | Doosan Bears | 58 | 0 | 40.1 | 9.4 | 4.0 | 0.4 | 0.367 | 4.91 | 3.61 | 0.52 |
| 2019 | 36 | Doosan Bears | 9 | 0 | 6.0 | 6.0 | 0.0 | 0.0 | 0.222 | 3.00 | 2.02 | 0.15 |
| 2018 | 35 | Doosan Bears | 39 | 0 | 30.2 | 6.2 | 4.1 | 1.2 | 0.354 | 4.99 | 5.56 | -0.13 |
| 2017 | 34 | Doosan Bears | 57 | 0 | 52.0 | 6.6 | 2.8 | 0.7 | 0.341 | 3.98 | 4.37 | 0.32 |
| 2016 | 33 | Doosan Bears | 56 | 0 | 57.2 | 6.4 | 2.7 | 1.2 | 0.310 | 4.84 | 5.37 | -0.14 |
| 2015 | 32 | Doosan Bears | 41 | 0 | 46.2 | 7.9 | 1.9 | 0.6 | 0.316 | 2.89 | 3.40 | 0.73 |
| 2014 | 31 | Doosan Bears | 65 | 3 | 55.0 | 6.4 | 3.8 | 0.3 | 0.346 | 5.07 | 4.24 | 0.55 |
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