| Season | Age | Team | G | GS | IP | K/9 | BB/9 | HR/9 | BABIP | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 34 | LG Twins | 67 | 0 | 44 | 10.4 | 3.9 | 0.4 | 0.380 | 4.30 | 3.39 | 0.66 |
| 2019 | 33 | LG Twins | 72 | 0 | 42.0 | 8.1 | 3.4 | 0.4 | 0.331 | 3.43 | 3.45 | 0.35 |
| 2018 | 32 | LG Twins | 66 | 0 | 43.2 | 7.6 | 2.7 | 1.4 | 0.381 | 7.21 | 5.33 | -0.08 |
| 2017 | 31 | LG Twins | 75 | 0 | 52.2 | 8.2 | 2.6 | 1.0 | 0.311 | 3.93 | 4.30 | 0.36 |
| 2016 | 30 | LG Twins | 75 | 0 | 54.0 | 9.0 | 6.2 | 0.8 | 0.342 | 4.67 | 5.11 | 0.01 |
| 2015 | 29 | LG Twins | 39 | 0 | 28.1 | 6.4 | 5.1 | 0.6 | 0.318 | 5.72 | 5.28 | -0.13 |
| 2014 | 28 | SK Wyverns | 75 | 0 | 49.0 | 6.8 | 5.0 | 1.5 | 0.371 | 7.16 | 6.22 | -0.23 |
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