| Starter | Tm | Tier | Game |
|---|---|---|---|
| Carl Mays | NYA | 7.99 | 192107210_NYA_CLE |
| Red Faber | CHA | 7.06 | 192107210_OAK_CHA |
| Eppa Rixey | CIN | 4.69 | 192107200_CIN_SFN |
| Pete Alexander | CHN | 3.15 | 192107201_CHN_PHI |
| Stan Coveleski | CLE | 2 | 192107200_NYA_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Wilkinson | CHA | -4.61 | 192107200_OAK_CHA |
| Ray Caldwell | CLE | -2.57 | 192107210_NYA_CLE |
| Bill Hubbell | PHI | -0.86 | 192107202_CHN_PHI |
| Rollie Naylor | OAK | -0.86 | 192107210_OAK_CHA |
| Dixie Davis | BAL | -0.82 | 192107200_BOS_BAL |
Based on accumulated WAA for this season up to 1921-07-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.57 | Red Faber | 223.7 | CHA |
| +003+ | 7.9 | Eppa Rixey | 171 | CIN |
| +008+ | 5.75 | George Mogridge | 168.7 | MIN |
| +009+ | 5.56 | Carl Mays | 192.7 | NYA |
| +013+ | 4.57 | Jesse Barnes | 143.7 | SFN |
| +017+ | 3.76 | Bill Doak | 114.7 | SLN |
| +019+ | 3.75 | Burleigh Grimes | 157 | LAN |
| +020+ | 3.74 | Whitey Glazner | 144 | PIT |
| +024+ | 3.36 | Pete Alexander | 120 | CHN |
| +025+ | 3.29 | Hugh McQuillan | 164 | ATL |
| +026+ | 3.24 | Sad Sam Jones | 175 | BOS |
| +027+ | 3.13 | Wilbur Cooper | 181 | PIT |
| +029+ | 2.97 | Dolf Luque | 178.7 | CIN |
| +030+ | 2.86 | Elmer Ponder | 57.7 | TOT |
| +031+ | 2.68 | Dana Fillingim | 139.3 | ATL |
| +032+ | 2.65 | Babe Adams | 102.3 | PIT |
| +034+ | 2.62 | Joe Oeschger | 168 | ATL |
| +035+ | 2.56 | Herb Pennock | 131 | BOS |
| +036+ | 2.5 | Bullet Joe Bush | 121.7 | BOS |
| +039+ | 2.35 | Bob Shawkey | 129.7 | NYA |
| +040+ | 2.33 | Waite Hoyt | 151.7 | NYA |
| +048+ | 2.06 | Stan Coveleski | 195.7 | CLE |
| +050+ | 2.01 | Fred Toney | 136.7 | SFN |
| +052+ | 2 | Earl Hamilton | 145.7 | PIT |
| +060+ | 1.79 | Allen Russell | 118.7 | BOS |
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