| Season | Age | Team | G | GS | IP | K/9 | BB/9 | HR/9 | BABIP | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 40 | Samsung Lions | 16 | 0 | 15.2 | 5.7 | 1.7 | 1.7 | 0.345 | 8.62 | 5.33 | 0.03 |
| 2019 | 39 | Samsung Lions | 43 | 0 | 43.0 | 5.4 | 2.5 | 1.5 | 0.300 | 5.23 | 5.24 | -0.18 |
| 2018 | 38 | Samsung Lions | 47 | 0 | 43.1 | 10.8 | 2.5 | 1.5 | 0.313 | 3.95 | 4.51 | 0.57 |
| 2017 | 37 | Samsung Lions | 45 | 0 | 56.0 | 8.8 | 2.2 | 1.8 | 0.309 | 5.14 | 5.23 | 0.26 |
| 2016 | 36 | Samsung Lions | 41 | 0 | 46.1 | 6.8 | 2.1 | 1.7 | 0.287 | 3.88 | 5.66 | 0.13 |
| 2015 | 35 | Samsung Lions | 30 | 0 | 28.0 | 7.7 | 2.9 | 1.6 | 0.322 | 8.04 | 5.66 | -0.01 |
| 2014 | 34 | Samsung Lions | 1 | 0 | 1.0 | 0.0 | 0.0 | 0.0 | 0.500 | 18.00 | 3.77 | 0.02 |
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