| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Faber | CHA | 11.15 | 192108230_OAK_CHA |
| Eppa Rixey | CIN | 7.1 | 192108210_CIN_LAN |
| Carl Mays | NYA | 4.77 | 192108220_NYA_BAL |
| Jesse Barnes | SFN | 3.11 | 192108230_SLN_SFN |
| Sad Sam Jones | BOS | 2.51 | 192108220_BOS_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Wilkinson | CHA | -3.67 | 192108210_MIN_CHA |
| Dixie Davis | BAL | -2.8 | 192108230_BOS_BAL |
| Ray Caldwell | CLE | -2.32 | 192108230_NYA_CLE |
| Lee Meadows | PHI | -0.86 | 192108230_CHN_PHI |
| Howard Ehmke | DET | -0.85 | 192108210_OAK_DET |
Based on accumulated WAA for this season up to 1921-08-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10.73 | Red Faber | 287.3 | CHA |
| +004+ | 8.75 | Eppa Rixey | 234 | CIN |
| +008+ | 6.65 | George Mogridge | 223.7 | MIN |
| +009+ | 6.39 | Carl Mays | 255.3 | NYA |
| +013+ | 5.84 | Bill Doak | 163.7 | SLN |
| +014+ | 5.64 | Jesse Barnes | 207.3 | SFN |
| +015+ | 5.57 | Sad Sam Jones | 234 | BOS |
| +020+ | 4.33 | Burleigh Grimes | 217.3 | LAN |
| +022+ | 4.09 | Whitey Glazner | 185 | PIT |
| +023+ | 4.08 | Stan Coveleski | 251 | CLE |
| +026+ | 3.61 | Allen Russell | 141 | BOS |
| +029+ | 3.44 | Wilbur Cooper | 256 | PIT |
| +032+ | 3.23 | Waite Hoyt | 204.3 | NYA |
| +034+ | 3.01 | Joe Oeschger | 226.3 | ATL |
| +035+ | 2.96 | Hugh McQuillan | 212.3 | ATL |
| +038+ | 2.75 | Bill Pertica | 164.3 | SLN |
| +039+ | 2.74 | Dolf Luque | 237 | CIN |
| +047+ | 2.39 | Dutch Leonard | 197.3 | DET |
| +048+ | 2.29 | Eric Erickson | 140.3 | MIN |
| +050+ | 2.23 | Johnny Morrison | 75 | PIT |
| +053+ | 2.11 | Earl Hamilton | 184 | PIT |
| +056+ | 2.04 | Dana Fillingim | 175.3 | ATL |
| +058+ | 1.96 | Mule Watson | 197 | ATL |
| +059+ | 1.95 | Guy Morton | 74.3 | CLE |
| +063+ | 1.82 | Clarence Mitchell | 138.7 | LAN |
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