| Year | Team | G | GS | IP |
K |
HR9 |
ERA |
WHIP |
| 2015 | BOS | 1 | 1 | 4.1 | 3 | 0.00000 | 8.30776 | 1.61540 |
| 2017 | BOS | 5 | 5 | 27.0 | 21 | 1.66667 | 4.33333 | 1.48148 |
| 2018 | BOS | 38 | 13 | 99.1 | 87 | 1.44966 | 4.16779 | 1.42953 |
| 2019 | BOS | 21 | 7 | 40.1 | 31 | 1.33884 | 6.02480 | 1.88430 |
| Year | Team | G | GS | IP |
K |
HR9 |
ERA |
WHIP |
| 2012 | BOS (A-) | 4 | 4 | 5.2 | 4 | 0.00000 | 0.00000 | 0.52941 |
| 2013 | BOS (R) | 2 | 2 | 5.0 | 7 | 0.00000 | 0.00000 | 0.60000 |
| 2013 | BOS (A) | 15 | 15 | 69.0 | 69 | 0.52174 | 2.86957 | 1.13043 |
| 2013 | BOS (A+) | 2 | 2 | 11.0 | 8 | 0.00000 | 1.63636 | 1.27273 |
| 2014 | BOS (A+) | 5 | 5 | 25.2 | 33 | 0.00000 | 3.85714 | 1.16883 |
| 2014 | BOS (AA) | 20 | 20 | 118.0 | 99 | 0.45763 | 1.75424 | 0.93220 |
| 2015 | BOS (AAA) | 18 | 18 | 96.0 | 90 | 0.56250 | 2.53125 | 1.10417 |
| 2016 | BOS (R) | 2 | 2 | 7.0 | 9 | 0.00000 | 3.85714 | 1.28571 |
| 2016 | BOS (A-) | 2 | 2 | 11.0 | 11 | 0.00000 | 0.00000 | 0.81818 |
| 2016 | BOS (AAA) | 15 | 15 | 77.0 | 54 | 1.05195 | 4.09091 | 1.42857 |
| 2017 | BOS (A-) | 1 | 1 | 2.2 | 4 | 0.00000 | 3.37500 | 1.50000 |
| 2017 | BOS (AAA) | 17 | 17 | 90.1 | 70 | 0.99631 | 3.08856 | 1.21771 |
| 2019 | BOS (AA) | 3 | 2 | 6.0 | 7 | 1.50000 | 10.50000 | 2.33333 |
| 2019 | BOS (AAA) | 6 | 3 | 14.2 | 19 | 0.61364 | 3.68182 | 1.43182 |
| 2021 | LAA (AAA) | 14 | 10 | 61.1 | 47 | 1.17391 | 5.72283 | 1.38587 |
| Year | Team | G | GS | IP |
K |
HR9 |
ERA |
WHIP |
| 2015 | BOS (ST) | 7 | 3 | 20.0 | 23 | 0.00000 | 4.50000 | 1.45000 |
| 2016 | BOS (ST) | 3 | 0 | 4.2 | 4 | 0.00000 | 11.57142 | 2.14286 |
| 2017 | BOS (ST) | 3 | 1 | 6.2 | 5 | 1.35000 | 5.40000 | 2.55000 |
| 2018 | BOS (ST) | 5 | 5 | 15.2 | 13 | 0.00000 | 1.72340 | 0.82979 |
| 2019 | BOS (ST) | 5 | 3 | 10.2 | 11 | 0.84375 | 7.59375 | 1.96875 |
| 2020 | BOS (ST) | 5 | 2 | 9.1 | 9 | 0.00000 | 3.85714 | 1.28571 |