| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eppa Rixey | CIN | 5.96 | 192109020_CHN_CIN |
| Carl Mays | NYA | 5.16 | 192109030_MIN_NYA |
| George Mogridge | MIN | 3.7 | 192109011_MIN_NYA |
| Sad Sam Jones | BOS | 3.56 | 192109010_OAK_BOS |
| Bill Doak | SLN | 3.22 | 192109020_SLN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Shovel Hodge | CHA | -9.42 | 192109010_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 |
| Jimmy Ring | PHI | -0.81 | 192109031_ATL_PHI |
Based on accumulated WAA for this season up to 1921-09-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.23 | Red Faber | 302.7 | CHA |
| +007+ | 8.21 | Eppa Rixey | 249.7 | CIN |
| +008+ | 7.5 | Carl Mays | 282.3 | NYA |
| +009+ | 7.37 | George Mogridge | 247.7 | MIN |
| +013+ | 6.57 | Jesse Barnes | 223.3 | SFN |
| +014+ | 6.55 | Sad Sam Jones | 253.7 | BOS |
| +015+ | 6.54 | Bill Doak | 177.7 | SLN |
| +016+ | 6.27 | Burleigh Grimes | 244.3 | LAN |
| +022+ | 4.66 | Waite Hoyt | 230.3 | NYA |
| +023+ | 4.57 | Stan Coveleski | 272 | CLE |
| +024+ | 4.34 | Joe Oeschger | 251.3 | ATL |
| +026+ | 3.93 | Whitey Glazner | 195.7 | PIT |
| +032+ | 3.71 | Dana Fillingim | 197.3 | ATL |
| +034+ | 3.69 | Wilbur Cooper | 270.7 | PIT |
| +036+ | 3.42 | Pete Alexander | 204.3 | CHN |
| +038+ | 3.28 | Bill Pertica | 181 | SLN |
| +039+ | 3.22 | Bill Sherdel | 105 | SLN |
| +043+ | 2.96 | Dolf Luque | 254 | CIN |
| +044+ | 2.89 | Rube Marquard | 222.7 | CIN |
| +055+ | 2.07 | Earl Hamilton | 193.7 | PIT |
| +056+ | 1.99 | Allen Russell | 153 | BOS |
| +057+ | 1.98 | Clarence Mitchell | 142.3 | LAN |
| +058+ | 1.96 | Art Nehf | 212.3 | SFN |
| +061+ | 1.95 | Dutch Leonard | 213.3 | DET |
| +068+ | 1.75 | Elam Vangilder | 139.3 | BAL |
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