| Starter | Tm | Tier | Game |
|---|---|---|---|
| Carl Mays | NYA | 9.32 | 192107090_NYA_CHA |
| Jesse Barnes | SFN | 6.46 | 192107070_LAN_SFN |
| Wilbur Cooper | PIT | 3.46 | 192107080_PIT_LAN |
| Stan Coveleski | CLE | 2.72 | 192107070_OAK_CLE |
| Pete Alexander | CHN | 2.45 | 192107080_CHN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dickey Kerr | CHA | -3.12 | 192107080_NYA_CHA |
| Carl Holling | DET | -1.49 | 192107080_BOS_DET |
| Dixie Davis | BAL | -1.33 | 192107080_MIN_BAL |
| Harry Courtney | MIN | -0.98 | 192107090_MIN_BAL |
| Bill Hubbell | PHI | -0.87 | 192107090_SLN_PHI |
Based on accumulated WAA for this season up to 1921-07-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 6.84 | Red Faber | 181.7 | CHA |
| +005+ | 6.34 | Eppa Rixey | 143.3 | CIN |
| +008+ | 5.47 | Carl Mays | 171 | NYA |
| +009+ | 5.38 | George Mogridge | 144.7 | MIN |
| +010+ | 4.55 | Burleigh Grimes | 124 | LAN |
| +014+ | 4.19 | Whitey Glazner | 128 | PIT |
| +015+ | 4.08 | Jesse Barnes | 126.7 | SFN |
| +020+ | 3.63 | Wilbur Cooper | 158 | PIT |
| +023+ | 2.99 | Sad Sam Jones | 147.3 | BOS |
| +026+ | 2.79 | Dolf Luque | 156.3 | CIN |
| +028+ | 2.6 | Dana Fillingim | 108.3 | ATL |
| +027+ | 2.6 | Bill Doak | 94.3 | SLN |
| +029+ | 2.54 | Stan Coveleski | 170.7 | CLE |
| +030+ | 2.47 | Allen Russell | 101.7 | BOS |
| +031+ | 2.45 | Johnny Morrison | 42 | PIT |
| +033+ | 2.38 | Roy Walker | 92 | SLN |
| +035+ | 2.37 | Herb Pennock | 111.3 | BOS |
| +037+ | 2.29 | Bill Piercy | 63.3 | NYA |
| +043+ | 1.99 | Earl Hamilton | 124.7 | PIT |
| +044+ | 1.98 | Elam Vangilder | 63.3 | BAL |
| +047+ | 1.92 | Fred Toney | 121.7 | SFN |
| +048+ | 1.91 | Roy Moore | 100 | OAK |
| +049+ | 1.89 | Waite Hoyt | 133.7 | NYA |
| +051+ | 1.8 | Joe Oeschger | 141.7 | ATL |
| +055+ | 1.73 | Pete Alexander | 92.3 | CHN |
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