| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eppa Rixey | CIN | 5.73 | 192108290_CIN_ATL |
| Carl Mays | NYA | 5.53 | 192108300_NYA_MIN |
| George Mogridge | MIN | 4.24 | 192108280_MIN_CLE |
| Bill Doak | SLN | 3.51 | 192108301_SLN_PHI |
| Jesse Barnes | SFN | 2.79 | 192108280_CHN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dickey Kerr | CHA | -1.46 | 192108280_BOS_CHA |
| Bob Hasty | OAK | -1.03 | 192108280_OAK_BAL |
| Ray Kolp | BAL | -0.57 | 192108280_OAK_BAL |
| Dutch Ruether | LAN | -0.37 | 192108290_PIT_LAN |
| Speed Martin | CHN | -0.35 | 192108300_CHN_SFN |
Based on accumulated WAA for this season up to 1921-08-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10.61 | Red Faber | 296.3 | CHA |
| +004+ | 8.89 | Eppa Rixey | 248.3 | CIN |
| +008+ | 7.36 | George Mogridge | 239.7 | MIN |
| +009+ | 7.26 | Carl Mays | 273.3 | NYA |
| +012+ | 6.52 | Bill Doak | 177.7 | SLN |
| +014+ | 6.1 | Sad Sam Jones | 244.7 | BOS |
| +015+ | 6.04 | Jesse Barnes | 216.3 | SFN |
| +018+ | 5.36 | Burleigh Grimes | 235.3 | LAN |
| +020+ | 4.9 | Stan Coveleski | 269 | CLE |
| +024+ | 3.9 | Whitey Glazner | 195.7 | PIT |
| +025+ | 3.72 | Waite Hoyt | 218.3 | NYA |
| +027+ | 3.66 | Dana Fillingim | 197.3 | ATL |
| +028+ | 3.65 | Wilbur Cooper | 270.7 | PIT |
| +029+ | 3.64 | Joe Oeschger | 242.3 | ATL |
| +037+ | 3.05 | Bill Pertica | 172 | SLN |
| +038+ | 2.92 | Dolf Luque | 254 | CIN |
| +045+ | 2.6 | Johnny Morrison | 90 | PIT |
| +047+ | 2.53 | Pete Alexander | 195.3 | CHN |
| +048+ | 2.52 | Allen Russell | 147.7 | BOS |
| +049+ | 2.51 | Earl Hamilton | 192 | PIT |
| +051+ | 2.36 | Bill Sherdel | 96 | SLN |
| +057+ | 2 | Rube Marquard | 213.7 | CIN |
| +062+ | 1.94 | Clarence Mitchell | 142.3 | LAN |
| +064+ | 1.89 | Art Nehf | 212.3 | SFN |
| +067+ | 1.76 | Dutch Leonard | 204.3 | DET |
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