| Starter | Tm | Tier | Game |
|---|---|---|---|
| Eppa Rixey | CIN | 7.32 | 192109100_SLN_CIN |
| Carl Mays | NYA | 6.09 | 192109100_NYA_OAK |
| George Mogridge | MIN | 5.33 | 192109090_BOS_MIN |
| Burleigh Grimes | LAN | 3.97 | 192109100_LAN_SFN |
| Sad Sam Jones | BOS | 3.83 | 192109090_BOS_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Wilkinson | CHA | -2.92 | 192109080_CHA_BAL |
| Rip Collins | NYA | -1.5 | 192109080_NYA_OAK |
| Bob Hasty | OAK | -1.25 | 192109100_NYA_OAK |
| Hooks Dauss | DET | -1.07 | 192109080_DET_CLE |
| George Smith | PHI | -1.02 | 192109082_PHI_ATL |
Based on accumulated WAA for this season up to 1921-09-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 9.74 | Eppa Rixey | 271.7 | CIN |
| +007+ | 8.2 | Carl Mays | 300.3 | NYA |
| +009+ | 7.94 | George Mogridge | 262.7 | MIN |
| +012+ | 7.06 | Burleigh Grimes | 261.3 | LAN |
| +014+ | 6.9 | Jesse Barnes | 240.3 | SFN |
| +016+ | 6.46 | Bill Doak | 182.7 | SLN |
| +017+ | 6.43 | Sad Sam Jones | 271.7 | BOS |
| +022+ | 5.03 | Waite Hoyt | 238.3 | NYA |
| +023+ | 4.82 | Stan Coveleski | 279 | CLE |
| +024+ | 4.73 | Whitey Glazner | 207.7 | PIT |
| +026+ | 4.31 | Joe Oeschger | 268.7 | ATL |
| +027+ | 4.18 | Dana Fillingim | 213.3 | ATL |
| +031+ | 3.98 | Wilbur Cooper | 286.7 | PIT |
| +033+ | 3.76 | Dolf Luque | 275 | CIN |
| +034+ | 3.72 | Bill Pertica | 187 | SLN |
| +041+ | 3.5 | Rube Marquard | 232.7 | CIN |
| +042+ | 3.4 | Pete Alexander | 218.3 | CHN |
| +045+ | 2.92 | Benn Karr | 72.3 | BOS |
| +047+ | 2.78 | Johnny Morrison | 113 | PIT |
| +050+ | 2.44 | Earl Hamilton | 198.7 | PIT |
| +051+ | 2.42 | Clarence Mitchell | 151.3 | LAN |
| +057+ | 2.11 | Bullet Joe Bush | 202.3 | BOS |
| +059+ | 2.06 | Jesse Haines | 209.3 | SLN |
| +069+ | 1.73 | Bob Shawkey | 214.7 | NYA |
| +072+ | 1.69 | Hugh McQuillan | 231.7 | ATL |
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