| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Cooper | PIT | 3.69 | 192009230_CIN_PIT |
| Stan Coveleski | CLE | 3.3 | 192009210_BOS_CLE |
| Dutch Ruether | CIN | 2.37 | 192009222_CIN_PIT |
| Bob Shawkey | NYA | 2.04 | 192009210_NYA_BAL |
| Bill Doak | SLN | 1.51 | 192009210_SLN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sad Sam Jones | BOS | -1.51 | 192009210_BOS_CLE |
| Red Causey | PHI | -1.34 | 192009220_SLN_PHI |
| Eric Erickson | MIN | -0.94 | 192009210_MIN_DET |
| Bill Morrisette | DET | -0.14 | 192009231_BAL_DET |
| Hugh McQuillan | ATL | -0.12 | 192009232_ATL_PHI |
Based on accumulated WAA for this season up to 1920-09-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.44 | Pete Alexander | 337.3 | CHN |
| +006+ | 8.92 | Burleigh Grimes | 292.7 | LAN |
| +007+ | 7.94 | Wilbur Cooper | 315.7 | PIT |
| +009+ | 7.58 | Babe Adams | 258 | PIT |
| +012+ | 6.92 | Stan Coveleski | 299.3 | CLE |
| +014+ | 5.88 | Dutch Ruether | 265.7 | CIN |
| +018+ | 5.59 | Bob Shawkey | 249.7 | NYA |
| +020+ | 5.51 | Hippo Vaughn | 285 | CHN |
| +022+ | 5.12 | Fred Toney | 271 | SFN |
| +023+ | 5.06 | Bill Doak | 263 | SLN |
| +025+ | 4.8 | Sherry Smith | 130.7 | LAN |
| +027+ | 4.54 | Leon Cadore | 250.3 | LAN |
| +030+ | 4.3 | Dolf Luque | 206.3 | CIN |
| +032+ | 4.15 | Jesse Barnes | 280 | SFN |
| +033+ | 4.1 | Red Faber | 308 | CHA |
| +034+ | 4.05 | Jim Bagby | 315.7 | CLE |
| +038+ | 3.8 | Phil Douglas | 214.7 | SFN |
| +041+ | 3.23 | Elmer Ponder | 187 | PIT |
| +051+ | 2.57 | Dixie Davis | 254 | BAL |
| +052+ | 2.51 | Carl Mays | 294 | NYA |
| +053+ | 2.43 | Dana Fillingim | 255 | ATL |
| +058+ | 2.37 | Eddie Rommel | 163 | OAK |
| +059+ | 2.36 | Ray Fisher | 184.7 | CIN |
| +061+ | 2.31 | Lee Meadows | 225.7 | PHI |
| +062+ | 2.29 | Jack Quinn | 245.3 | NYA |
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