| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Faber | CHA | 11.04 | 192108120_CHA_CLE |
| Eppa Rixey | CIN | 7.55 | 192108140_SLN_CIN |
| Carl Mays | NYA | 4.91 | 192108131_NYA_OAK |
| Wilbur Cooper | PIT | 2.23 | 192108120_CHN_PIT |
| Bill Doak | SLN | 2.12 | 192108130_CIN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Wilkinson | CHA | -3.37 | 192108130_CHA_CLE |
| Phil Douglas | SFN | -0.84 | 192108140_PHI_SFN |
| Speed Martin | CHN | -0.72 | 192108140_PIT_CHN |
| Carl Holling | DET | -0.67 | 192108130_BAL_DET |
| George Smith | PHI | -0.37 | 192108121_PHI_ATL |
Based on accumulated WAA for this season up to 1921-08-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.31 | Red Faber | 269.3 | CHA |
| +003+ | 10.7 | Eppa Rixey | 229 | CIN |
| +009+ | 6.43 | George Mogridge | 210.7 | MIN |
| +010+ | 6.11 | Carl Mays | 239 | NYA |
| +013+ | 5.48 | Burleigh Grimes | 201 | LAN |
| +014+ | 5.31 | Jesse Barnes | 184.3 | SFN |
| +017+ | 5.11 | Bill Doak | 154.7 | SLN |
| +018+ | 4.84 | Sad Sam Jones | 216 | BOS |
| +022+ | 4.21 | Whitey Glazner | 173 | PIT |
| +023+ | 4.08 | Stan Coveleski | 240.7 | CLE |
| +025+ | 3.8 | Hugh McQuillan | 196.7 | ATL |
| +029+ | 3.35 | Wilbur Cooper | 235 | PIT |
| +030+ | 3.3 | Bullet Joe Bush | 164.7 | BOS |
| +032+ | 3.1 | Joe Oeschger | 214 | ATL |
| +037+ | 2.6 | Dolf Luque | 219 | CIN |
| +039+ | 2.57 | Waite Hoyt | 194.7 | NYA |
| +040+ | 2.53 | Earl Hamilton | 170.7 | PIT |
| +043+ | 2.47 | Pete Alexander | 174 | CHN |
| +045+ | 2.42 | Rube Marquard | 190.7 | CIN |
| +049+ | 2.16 | Dana Fillingim | 161 | ATL |
| +054+ | 2.02 | Johnny Morrison | 66 | PIT |
| +060+ | 1.85 | Bill Pertica | 149 | SLN |
| +063+ | 1.62 | Fred Toney | 183 | SFN |
| +067+ | 1.53 | Bob Shawkey | 168 | NYA |
| +066+ | 1.53 | Art Nehf | 175.3 | SFN |
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