career regular season statistics    
  
  | Year | Team | League | 
          W           
            Wins           
         | 
        
          L           
            Losses           
         | 
        
          ERA           
            Earned Run Average           
         | 
        
          G           
            Games           
         | 
        
          GS           
            Games Started           
         | 
        
          CG           
            Complete Games           
         | 
        
          SHO           
            Shutouts           
         | 
        
          SV           
            Saves           
         | 
        
          HLD           
            Holds           
         | 
        
          IP           
            Innings Pitched           
         | 
        
          H           
            Hits Allowed           
         | 
        
          R           
            Runs Allowed           
         | 
        
          ER           
            Earned Runs           
         | 
        
          HR           
            Home Runs Allowed           
         | 
        
          BB           
            Walks           
         | 
        
          SO           
            Strikeouts           
         | 
        
          WHIP           
            Walks and Hits Per Inning Pitched           
         | 
      
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | San Diego | NL | 13 | 5 | 2.87 | 31 | 31 | 0 | 0 | 0 | 0 | 181.2 | 129 | 63 | 58 | 22 | 50 | 190 | 0.99 | 
| 2024 | Boston | AL | 6 | 12 | 4.14 | 27 | 26 | 0 | 0 | 0 | 0 | 145.2 | 128 | 70 | 67 | 28 | 36 | 172 | 1.13 | 
| 2023 | Boston | AL | 10 | 9 | 4.04 | 38 | 16 | 0 | 0 | 1 | 2 | 142.2 | 110 | 69 | 64 | 23 | 50 | 183 | 1.12 | 
| 2022 | Boston | AL | 10 | 12 | 4.51 | 33 | 33 | 1 | 0 | 0 | 0 | 179.2 | 175 | 91 | 91 | 27 | 73 | 175 | 1.38 | 
| 2021 | Boston | AL | 9 | 8 | 4.53 | 31 | 30 | 0 | 0 | 1 | 0 | 155 | 137 | 80 | 78 | 24 | 65 | 175 | 1.3 | 
| 2020 | Boston | AL | 2 | 0 | 1.8 | 2 | 2 | 0 | 0 | 0 | 0 | 10 | 8 | 2 | 2 | 1 | 5 | 13 | 1.3 | 
| 2020 | Philadelphia | NL | 0 | 0 | 15.88 | 3 | 0 | 0 | 0 | 0 | 1 | 5.2 | 10 | 10 | 10 | 3 | 1 | 4 | 1.94 | 
| 2020 | Total Phi/Bos | MLB | 2 | 0 | 6.89 | 5 | 2 | 0 | 0 | 0 | 1 | 15.2 | 18 | 12 | 12 | 4 | 6 | 17 | 1.53 | 
| 2019 | Philadelphia | NL | 4 | 6 | 5.38 | 30 | 13 | 1 | 0 | 1 | 1 | 93.2 | 103 | 64 | 56 | 20 | 39 | 89 | 1.52 | 
| 2019 | Lehigh Valley | AAA | 5 | 1 | 3.07 | 9 | 6 | 0 | 0 | 0 | 1 | 41 | 23 | 14 | 14 | 2 | 22 | 58 | 1.1 | 
| 2018 | Philadelphia | NL | 7 | 14 | 4.77 | 33 | 32 | 0 | 0 | 0 | 0 | 164 | 163 | 91 | 87 | 24 | 51 | 188 | 1.3 | 
| 2017 | Philadelphia | NL | 8 | 10 | 6.02 | 26 | 26 | 0 | 0 | 0 | 0 | 133 | 144 | 91 | 89 | 25 | 57 | 140 | 1.51 | 
| 2017 | Lehigh Valley | AAA | 5 | 0 | 1.41 | 5 | 5 | 1 | 1 | 0 | 0 | 32 | 25 | 6 | 5 | 1 | 2 | 37 | 0.84 | 
| 2016 | Lehigh Valley | AAA | 1 | 2 | 2.55 | 5 | 5 | 0 | 0 | 0 | 0 | 24.2 | 20 | 7 | 7 | 2 | 10 | 27 | 1.22 | 
| 2016 | Reading | AA | 11 | 6 | 3.41 | 22 | 22 | 1 | 1 | 0 | 0 | 124 | 108 | 50 | 47 | 10 | 41 | 111 | 1.2 | 
| 2015 | Harrisburg | AA | 0 | 2 | 7.2 | 3 | 3 | 0 | 0 | 0 | 15 | 19 | 12 | 12 | 4 | 9 | 6 | 1.87 | |
| 2015 | Reading | AA | 2 | 2 | 7.31 | 7 | 7 | 0 | 0 | 0 | 28.1 | 32 | 24 | 23 | 4 | 19 | 25 | 1.8 | |
| 2015 | Potomac | A | 7 | 4 | 2.29 | 15 | 14 | 0 | 0 | 0 | 0 | 86.1 | 70 | 29 | 22 | 4 | 29 | 72 | 1.15 | 
| 2014 | Hagerstown | A | 13 | 8 | 4.22 | 26 | 25 | 0 | 0 | 0 | 132.1 | 142 | 66 | 62 | 15 | 39 | 98 | 1.37 | |
| 2013 | Auburn | A | 0 | 1 | 3.38 | 5 | 5 | 0 | 0 | 0 | 21.1 | 19 | 8 | 8 | 1 | 11 | 17 | 1.41 | |
| 2013 | GCL Nationals | R | 1 | 0 | 2.13 | 4 | 3 | 0 | 0 | 0 | 12.2 | 11 | 4 | 3 | 0 | 2 | 8 | 1.03 | |
| Total | MLB | 69 | 76 | 4.47 | 254 | 209 | 2 | 0 | 3 | 4 | 1211 | 1107 | 631 | 602 | 197 | 427 | 1329 | 1.27 | |
| Total | NL | 32 | 35 | 4.67 | 123 | 102 | 1 | 0 | 1 | 2 | 578 | 549 | 319 | 300 | 94 | 198 | 611 | 1.29 | |
| Total | AL | 37 | 41 | 4.29 | 131 | 107 | 1 | 0 | 2 | 2 | 633 | 558 | 312 | 302 | 103 | 229 | 718 | 1.24 | |
| Total | AAA | 11 | 3 | 2.4 | 19 | 16 | 1 | 1 | 0 | 97.2 | 68 | 27 | 26 | 5 | 34 | 122 | 1.04 | ||
| Total | AA | 13 | 10 | 4.41 | 32 | 32 | 1 | 1 | 0 | 167.1 | 159 | 86 | 82 | 18 | 69 | 142 | 1.36 | ||
| Total | A | 20 | 13 | 3.45 | 46 | 44 | 0 | 0 | 0 | 240 | 231 | 103 | 92 | 20 | 79 | 187 | 1.29 | ||
| Total | R | 1 | 0 | 2.13 | 4 | 3 | 0 | 0 | 0 | 12.2 | 11 | 4 | 3 | 0 | 2 | 8 | 1.03 |