| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eppa Rixey | CIN | 5.96 | 192109020_CHN_CIN |
| Carl Mays | NYA | 5.16 | 192109030_MIN_NYA |
| Bill Doak | SLN | 3.22 | 192109020_SLN_PIT |
| Jesse Barnes | SFN | 2.58 | 192109030_SFN_LAN |
| Joe Oeschger | ATL | 1.53 | 192109040_ATL_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Wilkinson | CHA | -3.48 | 192109020_BAL_CHA |
| Harry Courtney | MIN | -2.93 | 192109030_MIN_NYA |
| Bob Hasty | OAK | -1.61 | 192109020_OAK_BOS |
| Jim Bagby | CLE | -1.01 | 192109020_CLE_DET |
| Hooks Dauss | DET | -0.92 | 192109040_CLE_DET |
Based on accumulated WAA for this season up to 1921-09-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 8.16 | Eppa Rixey | 249.7 | CIN |
| +008+ | 7.52 | Carl Mays | 282.3 | NYA |
| +009+ | 7.38 | George Mogridge | 247.7 | MIN |
| +013+ | 6.58 | Jesse Barnes | 223.3 | SFN |
| +014+ | 6.57 | Sad Sam Jones | 253.7 | BOS |
| +015+ | 6.54 | Bill Doak | 177.7 | SLN |
| +016+ | 6.28 | Burleigh Grimes | 244.3 | LAN |
| +022+ | 4.79 | Whitey Glazner | 207.7 | PIT |
| +023+ | 4.68 | Waite Hoyt | 230.3 | NYA |
| +024+ | 4.58 | Stan Coveleski | 272 | CLE |
| +025+ | 4.57 | Joe Oeschger | 260.3 | ATL |
| +030+ | 3.72 | Dana Fillingim | 197.3 | ATL |
| +032+ | 3.66 | Bill Sherdel | 114 | SLN |
| +033+ | 3.64 | Wilbur Cooper | 270.7 | PIT |
| +034+ | 3.63 | Dolf Luque | 266 | CIN |
| +038+ | 3.44 | Pete Alexander | 204.3 | CHN |
| +040+ | 3.29 | Bill Pertica | 181 | SLN |
| +044+ | 2.84 | Rube Marquard | 222.7 | CIN |
| +048+ | 2.41 | Clarence Mitchell | 151.3 | LAN |
| +056+ | 2.03 | Earl Hamilton | 193.7 | PIT |
| +057+ | 2 | Allen Russell | 153 | BOS |
| +059+ | 1.96 | Dutch Leonard | 213.3 | DET |
| +070+ | 1.61 | Jesse Haines | 194.3 | SLN |
| +073+ | 1.52 | Hugh McQuillan | 227.7 | ATL |
| +075+ | 1.47 | Johnny Morrison | 96 | PIT |
_