| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Alexander | CHN | 10.4 | 192008310_PHI_CHN |
| Babe Adams | PIT | 4.26 | 192008310_SFN_PIT |
| Bill Doak | SLN | 1.86 | 192008301_LAN_SLN |
| Leon Cadore | LAN | 1.08 | 192008302_LAN_SLN |
| Phil Douglas | SFN | 0.67 | 192008301_SFN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Shaw | MIN | -4.13 | 192008300_CLE_MIN |
| Dutch Leonard | DET | -3.67 | 192008300_DET_OAK |
| Lefty Williams | CHA | -2.59 | 192008300_CHA_BOS |
| Bullet Joe Bush | BOS | -1.89 | 192008310_CHA_BOS |
| Carl Weilman | BAL | -1.63 | 192009010_BAL_NYA |
Based on accumulated WAA for this season up to 1920-09-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10 | Pete Alexander | 303 | CHN |
| +005+ | 7.12 | Burleigh Grimes | 249 | LAN |
| +008+ | 6.09 | Babe Adams | 221 | PIT |
| +009+ | 5.92 | Wilbur Cooper | 272.7 | PIT |
| +013+ | 5.51 | Hippo Vaughn | 247 | CHN |
| +014+ | 5.49 | Stan Coveleski | 255.3 | CLE |
| +016+ | 5.3 | Bill Doak | 228.7 | SLN |
| +019+ | 4.76 | Bob Shawkey | 203.3 | NYA |
| +021+ | 4.41 | Urban Shocker | 245.7 | BAL |
| +028+ | 3.75 | Jack Quinn | 227 | NYA |
| +032+ | 3.25 | Red Faber | 255 | CHA |
| +034+ | 3.18 | Elmer Ponder | 154 | PIT |
| +036+ | 3.03 | Leon Cadore | 204.3 | LAN |
| +038+ | 2.89 | Jesse Barnes | 240 | SFN |
| +041+ | 2.69 | Dave Keefe | 93.7 | OAK |
| +042+ | 2.6 | Dixie Davis | 202.7 | BAL |
| +043+ | 2.55 | Harry Harper | 136 | BOS |
| +046+ | 2.4 | Lee Meadows | 195 | PHI |
| +045+ | 2.4 | Phil Douglas | 175 | SFN |
| +048+ | 2.34 | Fred Toney | 225 | SFN |
| +049+ | 2.33 | Jim Bagby | 276 | CLE |
| +051+ | 2.22 | Rube Benton | 180.7 | SFN |
| +055+ | 2.09 | Hod Eller | 144.7 | CIN |
| +062+ | 1.91 | Howard Ehmke | 230.3 | DET |
| +064+ | 1.89 | Al Mamaux | 168 | LAN |
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