| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Faber | CHA | 10.4 | 192108140_CHA_CLE |
| Eppa Rixey | CIN | 7.55 | 192108140_SLN_CIN |
| Carl Mays | NYA | 4.91 | 192108131_NYA_OAK |
| Jesse Barnes | SFN | 2.94 | 192108150_PHI_SFN |
| Bill Doak | SLN | 2.12 | 192108130_CIN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Wilkinson | CHA | -3.37 | 192108130_CHA_CLE |
| Dixie Davis | BAL | -1.59 | 192108150_DET_BAL |
| Phil Douglas | SFN | -0.84 | 192108140_PHI_SFN |
| Hooks Dauss | DET | -0.82 | 192108150_DET_BAL |
| Lee Meadows | PHI | -0.73 | 192108150_PHI_SFN |
Based on accumulated WAA for this season up to 1921-08-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.29 | Red Faber | 269.3 | CHA |
| +003+ | 10.66 | Eppa Rixey | 229 | CIN |
| +009+ | 6.4 | George Mogridge | 210.7 | MIN |
| +010+ | 6.07 | Carl Mays | 239 | NYA |
| +012+ | 5.52 | Jesse Barnes | 191.3 | SFN |
| +015+ | 5.45 | Burleigh Grimes | 201 | LAN |
| +016+ | 5.08 | Bill Doak | 154.7 | SLN |
| +019+ | 4.8 | Sad Sam Jones | 216 | BOS |
| +022+ | 4.19 | Whitey Glazner | 173 | PIT |
| +023+ | 4.04 | Stan Coveleski | 240.7 | CLE |
| +025+ | 3.76 | Hugh McQuillan | 196.7 | ATL |
| +029+ | 3.32 | Wilbur Cooper | 235 | PIT |
| +030+ | 3.28 | Bullet Joe Bush | 164.7 | BOS |
| +033+ | 3.06 | Joe Oeschger | 214 | ATL |
| +037+ | 2.57 | Dolf Luque | 219 | CIN |
| +040+ | 2.53 | Waite Hoyt | 194.7 | NYA |
| +042+ | 2.5 | Earl Hamilton | 170.7 | PIT |
| +044+ | 2.45 | Pete Alexander | 174 | CHN |
| +045+ | 2.39 | Rube Marquard | 190.7 | CIN |
| +049+ | 2.17 | Guy Morton | 70.3 | CLE |
| +051+ | 2.13 | Dana Fillingim | 161 | ATL |
| +055+ | 2.01 | Johnny Morrison | 66 | PIT |
| +060+ | 1.82 | Bill Pertica | 149 | SLN |
| +064+ | 1.59 | Fred Toney | 183 | SFN |
| +068+ | 1.5 | Bob Shawkey | 168 | NYA |
_