| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Cooper | PIT | 4.01 | 192009190_PIT_LAN |
| Bob Shawkey | NYA | 3.17 | 192009180_NYA_CHA |
| Stan Coveleski | CLE | 2.89 | 192009170_MIN_CLE |
| Dolf Luque | CIN | 1.86 | 192009190_CIN_SFN |
| Jesse Barnes | SFN | 1.66 | 192009190_CIN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Courtney | MIN | -5.63 | 192009170_MIN_CLE |
| Lefty Williams | CHA | -2 | 192009190_OAK_CHA |
| Sad Sam Jones | BOS | -1.03 | 192009170_BOS_DET |
| Hank Thormahlen | NYA | -0.97 | 192009190_NYA_BAL |
| Hooks Dauss | DET | -0.75 | 192009192_MIN_DET |
Based on accumulated WAA for this season up to 1920-09-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10.84 | Pete Alexander | 328.3 | CHN |
| +006+ | 8.91 | Burleigh Grimes | 292.7 | LAN |
| +009+ | 7.21 | Wilbur Cooper | 306.7 | PIT |
| +010+ | 6.85 | Babe Adams | 249 | PIT |
| +013+ | 6.47 | Stan Coveleski | 291.3 | CLE |
| +014+ | 6.01 | Hippo Vaughn | 281.7 | CHN |
| +015+ | 5.85 | Dutch Ruether | 258.7 | CIN |
| +019+ | 5.29 | Bob Shawkey | 240.7 | NYA |
| +022+ | 4.65 | Bill Doak | 258 | SLN |
| +025+ | 4.38 | Fred Toney | 262 | SFN |
| +029+ | 4.13 | Jesse Barnes | 280 | SFN |
| +030+ | 4.09 | Sherry Smith | 121.7 | LAN |
| +031+ | 4.07 | Dolf Luque | 199.3 | CIN |
| +032+ | 4.06 | Leon Cadore | 244.3 | LAN |
| +033+ | 3.99 | Red Faber | 299 | CHA |
| +036+ | 3.68 | Jim Bagby | 308.7 | CLE |
| +040+ | 3.49 | Phil Douglas | 205.7 | SFN |
| +049+ | 2.51 | Elmer Ponder | 178 | PIT |
| +050+ | 2.49 | Dixie Davis | 245 | BAL |
| +053+ | 2.36 | Dana Fillingim | 247 | ATL |
| +054+ | 2.34 | Eddie Rommel | 158 | OAK |
| +056+ | 2.31 | Lee Meadows | 225.7 | PHI |
| +055+ | 2.31 | Jack Quinn | 245.3 | NYA |
| +058+ | 2.26 | Carl Mays | 283 | NYA |
| +063+ | 2.06 | Ray Fisher | 176.7 | CIN |
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