| Boston Red Sox - 1921 | |||
Record: 75-79 Park: Fenway Park I Attendance: 279,273 Park Factor: 97 | |||
| Batting | Pitching | Fielding | Lineups | Value | |||||||
| Player | G | BFP | OUTS | ER | ERA | ERpm | eWL |
| Sad Sam Jones | 40 | 1257 | 896 | 107 | 3.22 | 34.0 | 21-12 |
| Bullet Joe Bush | 37 | 1066 | 763 | 99 | 3.50 | 20.9 | 17-11 |
| Benn Karr | 26 | 499 | 353 | 48 | 3.67 | 7.5 | 7-6 |
| Herb Pennock | 32 | 967 | 668 | 100 | 4.04 | 4.9 | 13-12 |
| Allen Russell | 39 | 787 | 519 | 79 | 4.11 | 2.5 | 10-9 |
| Sam Dodge | 1 | 4 | 3 | 1 | 9.00 | -0.5 | 0-0 |
| Ernie Neitzke | 2 | 32 | 22 | 5 | 6.14 | -1.6 | 0-1 |
| Hank Thormahlen | 23 | 418 | 289 | 48 | 4.48 | -2.7 | 5-6 |
| Allen Sothoron | 2 | 39 | 18 | 9 | 13.50 | -6.2 | 0-1 |
| Curt Fullerton | 4 | 76 | 46 | 15 | 8.80 | -7.9 | 0-2 |
| Elmer Myers | 30 | 779 | 516 | 93 | 4.87 | -12.1 | 8-11 |

