| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eppa Rixey | CIN | 7.32 | 192109100_SLN_CIN |
| Carl Mays | NYA | 6.09 | 192109100_NYA_OAK |
| Burleigh Grimes | LAN | 3.97 | 192109100_LAN_SFN |
| Jesse Barnes | SFN | 2.63 | 192109100_LAN_SFN |
| Whitey Glazner | PIT | 1.77 | 192109122_ATL_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Kolp | BAL | -1.52 | 192109110_CLE_BAL |
| Jim Bagby | CLE | -1.5 | 192109110_CLE_BAL |
| Bob Hasty | OAK | -1.25 | 192109100_NYA_OAK |
| Hooks Dauss | DET | -0.8 | 192109110_DET_CHA |
| Virgil Cheeves | CHN | -0.63 | 192109110_SLN_CHN |
Based on accumulated WAA for this season up to 1921-09-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 9.72 | Eppa Rixey | 271.7 | CIN |
| +008+ | 8.17 | Carl Mays | 300.3 | NYA |
| +009+ | 7.9 | George Mogridge | 262.7 | MIN |
| +012+ | 7.04 | Burleigh Grimes | 261.3 | LAN |
| +014+ | 6.88 | Jesse Barnes | 240.3 | SFN |
| +016+ | 6.6 | Bill Doak | 184.3 | SLN |
| +017+ | 6.42 | Sad Sam Jones | 271.7 | BOS |
| +020+ | 5.44 | Waite Hoyt | 247.3 | NYA |
| +023+ | 4.8 | Stan Coveleski | 279 | CLE |
| +025+ | 4.57 | Whitey Glazner | 213.7 | PIT |
| +026+ | 4.21 | Wilbur Cooper | 295 | PIT |
| +027+ | 4.13 | Rube Marquard | 241.7 | CIN |
| +028+ | 4.08 | Dana Fillingim | 213.3 | ATL |
| +029+ | 4.02 | Joe Oeschger | 276 | ATL |
| +035+ | 3.76 | Bill Sherdel | 121.3 | SLN |
| +036+ | 3.74 | Dolf Luque | 275 | CIN |
| +043+ | 3.38 | Pete Alexander | 218.3 | CHN |
| +046+ | 2.76 | Bullet Joe Bush | 211.3 | BOS |
| +047+ | 2.74 | Johnny Morrison | 113 | PIT |
| +049+ | 2.63 | Benn Karr | 80.3 | BOS |
| +050+ | 2.58 | Earl Hamilton | 205.7 | PIT |
| +052+ | 2.48 | Clarence Mitchell | 154.3 | LAN |
| +059+ | 2.12 | Fred Toney | 234.3 | SFN |
| +060+ | 2.08 | Bill Piercy | 72.7 | NYA |
| +063+ | 2.04 | Jesse Haines | 209.3 | SLN |
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