| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Wilkinson | CHA | -3.6 | 192108060_CHA_BOS |
| Dixie Davis | BAL | -2.07 | 192108062_BAL_OAK |
| Jim Bagby | CLE | -1.2 | 192108050_CLE_MIN |
| Hooks Dauss | DET | -0.93 | 192108050_DET_NYA |
| George Smith | PHI | -0.63 | 192108060_PHI_CIN |
Based on accumulated WAA for this season up to 1921-08-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10.72 | Red Faber | 248.7 | CHA |
| +003+ | 9.12 | Eppa Rixey | 203 | CIN |
| +007+ | 6.66 | George Mogridge | 201.3 | MIN |
| +010+ | 5.86 | Carl Mays | 221 | NYA |
| +013+ | 5.1 | Jesse Barnes | 169.3 | SFN |
| +015+ | 4.52 | Burleigh Grimes | 183 | LAN |
| +018+ | 4.1 | Wilbur Cooper | 217 | PIT |
| +019+ | 3.99 | Whitey Glazner | 163 | PIT |
| +020+ | 3.92 | Bill Doak | 134.7 | SLN |
| +022+ | 3.75 | Bullet Joe Bush | 157.7 | BOS |
| +023+ | 3.67 | Pete Alexander | 157 | CHN |
| +026+ | 3.45 | Babe Adams | 120.3 | PIT |
| +027+ | 3.41 | Sad Sam Jones | 198 | BOS |
| +029+ | 3.37 | Stan Coveleski | 222.7 | CLE |
| +030+ | 3.23 | Hugh McQuillan | 183 | ATL |
| +032+ | 3.07 | Dolf Luque | 210 | CIN |
| +033+ | 2.97 | Waite Hoyt | 181.3 | NYA |
| +034+ | 2.64 | Dana Fillingim | 152 | ATL |
| +035+ | 2.62 | Joe Oeschger | 199 | ATL |
| +041+ | 2.47 | Bill Pertica | 146 | SLN |
| +044+ | 2.4 | Earl Hamilton | 161.7 | PIT |
| +055+ | 1.91 | Rube Marquard | 173.7 | CIN |
| +060+ | 1.77 | Guy Morton | 54.3 | CLE |
| +069+ | 1.47 | Slim Harriss | 174.7 | OAK |
| +072+ | 1.44 | Jack Scott | 150.3 | ATL |
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