| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jesse Barnes | SFN | 6.46 | 192107070_LAN_SFN |
| Red Faber | CHA | 4.91 | 192107060_DET_CHA |
| Wilbur Cooper | PIT | 3.46 | 192107080_PIT_LAN |
| Burleigh Grimes | LAN | 3.34 | 192107060_LAN_SFN |
| Stan Coveleski | CLE | 2.72 | 192107070_OAK_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dickey Kerr | CHA | -3.12 | 192107080_NYA_CHA |
| Eric Erickson | MIN | -2.94 | 192107062_MIN_BOS |
| Carl Holling | DET | -1.49 | 192107080_BOS_DET |
| Dixie Davis | BAL | -1.33 | 192107080_MIN_BAL |
| Bill Hubbell | PHI | -0.64 | 192107060_ATL_PHI |
Based on accumulated WAA for this season up to 1921-07-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 7 | Red Faber | 181.7 | CHA |
| +005+ | 6.32 | Eppa Rixey | 143.3 | CIN |
| +006+ | 6.27 | Carl Mays | 162.7 | NYA |
| +008+ | 5.33 | George Mogridge | 144.7 | MIN |
| +010+ | 4.53 | Burleigh Grimes | 124 | LAN |
| +016+ | 3.86 | Jesse Barnes | 124.7 | SFN |
| +019+ | 3.59 | Wilbur Cooper | 158 | PIT |
| +020+ | 3.53 | Whitey Glazner | 119 | PIT |
| +023+ | 2.96 | Sad Sam Jones | 147.3 | BOS |
| +025+ | 2.76 | Dolf Luque | 156.3 | CIN |
| +027+ | 2.59 | Bill Doak | 94.3 | SLN |
| +028+ | 2.58 | Dana Fillingim | 108.3 | ATL |
| +029+ | 2.51 | Stan Coveleski | 170.7 | CLE |
| +030+ | 2.45 | Allen Russell | 101.7 | BOS |
| +031+ | 2.44 | Johnny Morrison | 42 | PIT |
| +032+ | 2.35 | Herb Pennock | 111.3 | BOS |
| +034+ | 2.34 | Bill Piercy | 63.3 | NYA |
| +043+ | 1.97 | Elam Vangilder | 63.3 | BAL |
| +044+ | 1.96 | Earl Hamilton | 124.7 | PIT |
| +045+ | 1.89 | Fred Toney | 121.7 | SFN |
| +046+ | 1.88 | Roy Moore | 100 | OAK |
| +049+ | 1.78 | Joe Oeschger | 141.7 | ATL |
| +053+ | 1.71 | Waite Hoyt | 126.3 | NYA |
| +055+ | 1.7 | Pete Alexander | 92.3 | CHN |
| +054+ | 1.7 | Roy Walker | 83 | SLN |
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