| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Courtney | MIN | -3.55 | 192008020_MIN_CLE |
| Bullet Joe Bush | BOS | -1.9 | 192008040_BOS_DET |
| Red Oldham | DET | -1.88 | 192008021_BOS_DET |
| Red Causey | PHI | -1.67 | 192008040_CHN_PHI |
| Lefty Williams | CHA | -1.32 | 192008020_NYA_CHA |
Based on accumulated WAA for this season up to 1920-08-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.38 | Pete Alexander | 246.3 | CHN |
| +004+ | 7.27 | Dutch Ruether | 220 | CIN |
| +007+ | 5.98 | Burleigh Grimes | 192 | LAN |
| +009+ | 5.54 | Wilbur Cooper | 222.7 | PIT |
| +010+ | 5.24 | Stan Coveleski | 207.3 | CLE |
| +011+ | 4.97 | Hippo Vaughn | 186 | CHN |
| +013+ | 4.72 | Jack Quinn | 196.3 | NYA |
| +014+ | 4.71 | Bob Shawkey | 150.7 | NYA |
| +017+ | 4.22 | Red Faber | 207 | CHA |
| +021+ | 3.84 | Leon Cadore | 170 | LAN |
| +022+ | 3.82 | Babe Adams | 172 | PIT |
| +026+ | 3.28 | Dolf Luque | 144.7 | CIN |
| +030+ | 2.96 | Eppa Rixey | 206 | PHI |
| +031+ | 2.89 | Jesse Haines | 210 | SLN |
| +035+ | 2.69 | Phil Douglas | 123 | SFN |
| +036+ | 2.63 | Harry Harper | 100.7 | BOS |
| +039+ | 2.56 | Dixie Davis | 153 | BAL |
| +042+ | 2.47 | Al Mamaux | 133.7 | LAN |
| +041+ | 2.47 | Dana Fillingim | 172.7 | ATL |
| +044+ | 2.32 | Urban Shocker | 193.3 | BAL |
| +045+ | 2.29 | Joe Oeschger | 186.3 | ATL |
| +049+ | 2.02 | Lee Meadows | 145.7 | PHI |
| +050+ | 1.9 | Elmer Ponder | 108.3 | PIT |
| +051+ | 1.88 | Bill Doak | 173.7 | SLN |
| +060+ | 1.73 | Jim Bagby | 218.3 | CLE |
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