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| Year | Age | Lvl | Lg | Org | W | L | Win% | SV | G | GS | GF | CG | ShO | IP | H | R | ER | HR | BB | IBB | SO | HB | GIDP | ERA | WHIP |  | 2011 | 17 | R | DSL | CHN | 4 | 1 | .800 | 0 | 15 | 9 | 3 | 0 | 0 | 56.2 | 52 | 38 | 28 | 2 | 25 | 0 | 51 | 4 | 0 | 4.45 | 1.36 |  | 2012 | 18 | R | DSL | CHN | 5 | 2 | .714 | 0 | 13 | 8 | 1 | 0 | 0 | 53.0 | 50 | 21 | 16 | 1 | 12 | 0 | 47 | 4 | 0 | 2.72 | 1.17 |  | 2013 | 19 | R | DSL | CHN | 6 | 0 | 1.000 | 0 | 8 | 2 | 3 | 0 | 0 | 25.1 | 15 | 3 | 3 | 1 | 3 | 0 | 31 | 0 | 0 | 1.07 | 0.71 |  | 2014 | 20 | R | DSL | CHN | 2 | 1 | .667 | 0 | 4 | 3 | 0 | 0 | 0 | 20.0 | 17 | 3 | 3 | 0 | 6 | 0 | 14 | 0 | 0 | 1.35 | 1.15 |  | 2014 | 20 | R | AZL | CHN | 0 | 0 | --- | 1 | 10 | 0 | 4 | 0 | 0 | 16.1 | 12 | 6 | 5 | 1 | 8 | 0 | 27 | 1 | 0 | 2.76 | 1.22 |  | 2015 | 21 | A- | NWL | CHN | 0 | 2 | .000 | 1 | 21 | 0 | 12 | 0 | 0 | 50.1 | 43 | 17 | 15 | 1 | 9 | 1 | 70 | 1 | 0 | 2.68 | 1.03 |  | 2016 | 22 | A | MWL | CHN | 3 | 0 | 1.000 | 3 | 16 | 0 | 8 | 0 | 0 | 34.0 | 19 | 6 | 6 | 1 | 11 | 0 | 45 | 0 | 0 | 1.59 | 0.88 |  | 2016 | 22 | A+ | CAR | CHN | 0 | 2 | .000 | 1 | 13 | 0 | 5 | 0 | 0 | 19.0 | 18 | 12 | 11 | 2 | 13 | 0 | 22 | 1 | 0 | 5.21 | 1.63 |  | 2017 | 23 | A+ | CAR |  | 6 | 1 | .857 | 10 | 44 | 0 | 29 | 0 | 0 | 64.2 | 42 | 16 | 13 | 3 | 17 | 2 | 83 | 1 | 0 | 1.81 | 0.91 |  | 2017 | 23 | AA | SOU |  | 0 | 0 | --- | 0 | 1 | 0 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 1 | 0 | 4 | 0 | 0 | 0.00 | 1.00 |  | 2018 | 24 | MLB | AL | BAL | 1 | 3 | .250 | 0 | 20 | 0 | 8 | 0 | 0 | 28.0 | 29 | 24 | 24 | 9 | 18 | 0 | 29 | 2 | 2 | 7.71 | 1.68 |  | 2019 | 25 | AA | EAS |  | 1 | 3 | .250 | 0 | 24 | 0 | 12 | 0 | 0 | 39.2 | 26 | 20 | 16 | 7 | 19 | 1 | 40 | 1 | 0 | 3.63 | 1.13 |  | 2019 | 25 | AAA | INT |  | 0 | 1 | .000 | 0 | 4 | 0 | 0 | 0 | 0 | 9.0 | 16 | 15 | 13 | 6 | 5 | 0 | 9 | 0 | 0 | 13.00 | 2.33 |  | 2019 | 25 | MLB | AL | BAL | 0 | 0 | --- | 0 | 1 | 0 | 0 | 0 | 0 | 0.2 | 2 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 27.00 | 4.50 |  | Totals |  |  |  |  | W | L | Win% | SV | G | GS | GF | CG | ShO | IP | H | R | ER | HR | BB | IBB | SO | HB | GIDP | ERA | WHIP |  | Minors | Minors | 27 | 13 | .675 | 16 | 173 | 22 | 77 | 0 | 0 | 390.0 | 311 | 157 | 129 | 25 | 129 | 4 | 443 | 13 | 0 | 2.98 | 1.13 |  | Career | BAL | 1 | 3 | .250 | 0 | 21 | 0 | 8 | 0 | 0 | 28.2 | 31 | 26 | 26 | 10 | 19 | 0 | 29 | 2 | 3 | 8.16 | 1.74 |  | Career | Majors | 1 | 3 | .250 | 0 | 21 | 0 | 8 | 0 | 0 | 28.2 | 31 | 26 | 26 | 10 | 19 | 0 | 29 | 2 | 3 | 8.16 | 1.74 |  |  |  | 
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| Year | Age | Lvl | Lg | Org | W | L | Win% | SV | G | GS | GF | CG | ShO | IP | H | R | ER | HR | BB | IBB | SO | HB | GIDP | ERA | WHIP |  | 2018 | 24 | MLB | AL | BAL |  |  |  |  |  |  |  |  |  | 13.0 | 11 | 6 | 6 | 1 | 3 | 0 | 12 | 1 | 1 | 4.15 | 1.08 |  | 2018 | 24 | MLB | AL | BAL |  |  |  |  |  |  |  |  |  | 15.0 | 18 | 18 | 18 | 8 | 15 | 0 | 17 | 1 | 1 | 10.80 | 2.20 |  | 2019 | 25 | MLB | AL | BAL |  |  |  |  |  |  |  |  |  | 0.0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | inf | inf |  | 2019 | 25 | MLB | AL | BAL |  |  |  |  |  |  |  |  |  | 0.2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 13.50 | 1.50 |  | Totals |  |  |  |  | W | L | Win% | SV | G | GS | GF | CG | ShO | IP | H | R | ER | HR | BB | IBB | SO | HB | GIDP | ERA | WHIP |  | Career | vs LH |  |  |  |  |  |  |  |  |  | 13.0 | 12 | 7 | 7 | 1 | 4 | 0 | 12 | 1 | 1 | 4.85 | 1.23 |  | Career | vs RH |  |  |  |  |  |  |  |  |  | 15.2 | 19 | 19 | 19 | 9 | 15 | 0 | 17 | 1 | 2 | 10.91 | 2.17 |  |  |  | 
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