| Starter | Tm | Tier | Game |
|---|---|---|---|
| George Mogridge | MIN | 4.85 | 192109130_BAL_MIN |
| Sad Sam Jones | BOS | 4.18 | 192109130_DET_BOS |
| Waite Hoyt | NYA | 2.16 | 192109111_BOS_NYA |
| Whitey Glazner | PIT | 1.77 | 192109122_ATL_PIT |
| Joe Oeschger | ATL | 1.36 | 192109121_ATL_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dickey Kerr | CHA | -2.49 | 192109130_CHA_NYA |
| Ray Kolp | BAL | -1.52 | 192109110_CLE_BAL |
| Jim Bagby | CLE | -1.5 | 192109110_CLE_BAL |
| Jimmy Ring | PHI | -0.87 | 192109130_PHI_CHN |
| Hooks Dauss | DET | -0.8 | 192109110_DET_CHA |
Based on accumulated WAA for this season up to 1921-09-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 9.66 | Eppa Rixey | 271.7 | CIN |
| +008+ | 8.18 | Carl Mays | 300.3 | NYA |
| +012+ | 7.05 | Burleigh Grimes | 261.3 | LAN |
| +014+ | 6.84 | Jesse Barnes | 240.3 | SFN |
| +015+ | 6.64 | George Mogridge | 269.3 | MIN |
| +016+ | 6.6 | Bill Doak | 184.3 | SLN |
| +019+ | 5.77 | Sad Sam Jones | 273.7 | BOS |
| +020+ | 5.45 | Waite Hoyt | 247.3 | NYA |
| +023+ | 4.81 | Stan Coveleski | 279 | CLE |
| +025+ | 4.58 | Whitey Glazner | 213.7 | PIT |
| +026+ | 4.54 | Dana Fillingim | 218 | ATL |
| +027+ | 4.3 | Dolf Luque | 286 | CIN |
| +028+ | 4.22 | Wilbur Cooper | 295 | PIT |
| +029+ | 4.12 | Joe Oeschger | 276.7 | ATL |
| +030+ | 4.08 | Rube Marquard | 241.7 | CIN |
| +037+ | 3.76 | Bill Sherdel | 121.3 | SLN |
| +044+ | 3.38 | Pete Alexander | 218.3 | CHN |
| +046+ | 2.76 | Bullet Joe Bush | 211.3 | BOS |
| +047+ | 2.74 | Johnny Morrison | 113 | PIT |
| +048+ | 2.63 | Benn Karr | 80.3 | BOS |
| +049+ | 2.59 | Earl Hamilton | 205.7 | PIT |
| +051+ | 2.49 | Clarence Mitchell | 154.3 | LAN |
| +064+ | 2.08 | Bill Piercy | 72.7 | NYA |
| +065+ | 2.07 | Fred Toney | 234.3 | SFN |
| +066+ | 2.05 | Jesse Haines | 209.3 | SLN |
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