| Starter | Tm | Tier | Game |
|---|---|---|---|
| Burleigh Grimes | LAN | 5.11 | 192009120_CHN_LAN |
| Wilbur Cooper | PIT | 2.6 | 192009100_PIT_PHI |
| Hippo Vaughn | CHN | 2.52 | 192009120_CHN_LAN |
| Bob Shawkey | NYA | 2.34 | 192009100_NYA_CLE |
| Dolf Luque | CIN | 1.42 | 192009111_CIN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Courtney | MIN | -6.21 | 192009120_MIN_CHA |
| Lefty Williams | CHA | -1.73 | 192009120_MIN_CHA |
| Carl Weilman | BAL | -1.44 | 192009112_MIN_BAL |
| Hank Thormahlen | NYA | -1.01 | 192009110_NYA_CLE |
| Doc Ayers | DET | -0.98 | 192009101_OAK_DET |
Based on accumulated WAA for this season up to 1920-09-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.17 | Pete Alexander | 321 | CHN |
| +005+ | 8.64 | Burleigh Grimes | 282 | LAN |
| +007+ | 6.56 | Babe Adams | 233 | PIT |
| +009+ | 6.34 | Wilbur Cooper | 289.7 | PIT |
| +011+ | 6.17 | Dutch Ruether | 258.3 | CIN |
| +012+ | 6.08 | Bob Shawkey | 230.3 | NYA |
| +015+ | 5.83 | Stan Coveleski | 273.3 | CLE |
| +017+ | 5.74 | Hippo Vaughn | 274 | CHN |
| +019+ | 5.36 | Bill Doak | 245.7 | SLN |
| +023+ | 4.5 | Jesse Barnes | 266 | SFN |
| +026+ | 4.33 | Dolf Luque | 186.7 | CIN |
| +027+ | 4.29 | Leon Cadore | 231.3 | LAN |
| +032+ | 3.76 | Red Faber | 281 | CHA |
| +036+ | 3.52 | Phil Douglas | 192 | SFN |
| +037+ | 3.46 | Sherry Smith | 112.3 | LAN |
| +039+ | 3.33 | Fred Toney | 243 | SFN |
| +045+ | 2.77 | Jack Quinn | 238.7 | NYA |
| +047+ | 2.71 | Lee Meadows | 212 | PHI |
| +046+ | 2.71 | Dave Keefe | 109.7 | OAK |
| +048+ | 2.63 | Elmer Ponder | 169 | PIT |
| +054+ | 2.27 | Hod Eller | 165.7 | CIN |
| +059+ | 1.99 | Dixie Davis | 227 | BAL |
| +060+ | 1.97 | Jim Bagby | 290.7 | CLE |
| +064+ | 1.85 | Lefty Tyler | 162.3 | CHN |
| +068+ | 1.69 | Ray Fisher | 169 | CIN |
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