| Starter | Tm | Tier | Game |
|---|---|---|---|
| Burleigh Grimes | LAN | 4.75 | 192009030_PHI_LAN |
| Dutch Ruether | CIN | 3.63 | 192009040_CIN_SLN |
| Babe Adams | PIT | 3.17 | 192009040_CHN_PIT |
| Hippo Vaughn | CHN | 3.03 | 192009030_CHN_PIT |
| Stan Coveleski | CLE | 2.89 | 192009030_DET_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Shaw | MIN | -4.88 | 192009030_MIN_OAK |
| Dutch Leonard | DET | -4.55 | 192009030_DET_CLE |
| Lefty Williams | CHA | -2.77 | 192009042_BAL_CHA |
| Bullet Joe Bush | BOS | -2.07 | 192009042_NYA_BOS |
| Slim Harriss | OAK | -1.23 | 192009020_DET_OAK |
Based on accumulated WAA for this season up to 1920-09-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 9.84 | Pete Alexander | 303 | CHN |
| +005+ | 7.75 | Burleigh Grimes | 258 | LAN |
| +007+ | 6.3 | Dutch Ruether | 252.7 | CIN |
| +008+ | 6.21 | Hippo Vaughn | 260 | CHN |
| +009+ | 6.18 | Babe Adams | 229 | PIT |
| +011+ | 5.93 | Stan Coveleski | 264.3 | CLE |
| +012+ | 5.86 | Wilbur Cooper | 273.7 | PIT |
| +015+ | 5.52 | Bill Doak | 237.7 | SLN |
| +020+ | 4.81 | Bob Shawkey | 212.3 | NYA |
| +023+ | 4.54 | Dolf Luque | 179 | CIN |
| +025+ | 4.33 | Urban Shocker | 245.7 | BAL |
| +028+ | 3.67 | Leon Cadore | 213.3 | LAN |
| +030+ | 3.63 | Jack Quinn | 234 | NYA |
| +033+ | 3.37 | Red Faber | 263 | CHA |
| +034+ | 3.32 | Jesse Barnes | 249 | SFN |
| +038+ | 3.1 | Elmer Ponder | 154 | PIT |
| +039+ | 3.06 | Phil Douglas | 184 | SFN |
| +040+ | 3.05 | Dixie Davis | 211.7 | BAL |
| +043+ | 2.71 | Lee Meadows | 202 | PHI |
| +045+ | 2.63 | Dave Keefe | 93.7 | OAK |
| +048+ | 2.56 | Fred Toney | 234 | SFN |
| +052+ | 2.24 | Jim Bagby | 276 | CLE |
| +054+ | 2.17 | Rube Benton | 180.7 | SFN |
| +056+ | 2.1 | Jesse Haines | 253 | SLN |
| +057+ | 2.07 | Hod Eller | 144.7 | CIN |
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