| Boston Red Sox - Pitching - ESPN Player Rating | ||||||||||||||
| RK | PLAYER | TEAM | IP | W | L | SV | BS | K | BB | HBP | BAA | HR | ERA | RAT |
| 1 | Sonny Gray | BOS | 169.0 | 18 | 5 | 0 | 0 | 149 | 46 | 5 | .236 | 16 | 2.72 | 45.2 |
| 2 | Aroldis Chapman | BOS | 51.0 | 3 | 4 | 35 | 2 | 71 | 23 | 1 | .187 | 3 | 1.92 | 29.7 |
| 3 | Payton Tolle | BOS | 148.0 | 9 | 6 | 0 | 0 | 171 | 40 | 6 | .222 | 15 | 3.03 | 20.1 |
| 4 | Ranger Suarez | BOS | 148.0 | 8 | 5 | 0 | 0 | 140 | 46 | 7 | .235 | 10 | 3.22 | 19.2 |
| 5 | Garrett Whitlock | BOS | 52.0 | 7 | 2 | 4 | 4 | 59 | 9 | 0 | .204 | 3 | 1.72 | 14.7 |
| 6 | Jovani Moran | BOS | 65.0 | 2 | 3 | 0 | 1 | 73 | 33 | 2 | .180 | 9 | 3.15 | 8.7 |
| 7 | Jake Bennett | BOS | 113.0 | 9 | 7 | 0 | 0 | 91 | 21 | 3 | .246 | 12 | 3.65 | 5.1 |
| 8 | Erik Miller | BOS | 51.0 | 4 | 2 | 5 | 1 | 74 | 34 | 5 | .201 | 3 | 2.98 | 1.2 |