| Starter | Tm | Tier | Game |
|---|---|---|---|
| Pete Alexander | CHN | 10.16 | 192009251_CHN_CIN |
| Burleigh Grimes | LAN | 5.86 | 192009250_SFN_LAN |
| Wilbur Cooper | PIT | 3.69 | 192009230_CIN_PIT |
| Stan Coveleski | CLE | 3.31 | 192009250_CHA_CLE |
| Bob Shawkey | NYA | 1.99 | 192009250_MIN_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Harry Courtney | MIN | -3.7 | 192009250_MIN_NYA |
| Bullet Joe Bush | BOS | -3.22 | 192009250_OAK_BOS |
| Lefty Williams | CHA | -1.99 | 192009250_CHA_CLE |
| Red Causey | PHI | -1.25 | 192009252_ATL_PHI |
| Allen Conkwright | DET | -0.27 | 192009250_DET_BAL |
Based on accumulated WAA for this season up to 1920-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 12.17 | Pete Alexander | 346.3 | CHN |
| +006+ | 8.13 | Burleigh Grimes | 298.7 | LAN |
| +007+ | 7.89 | Wilbur Cooper | 315.7 | PIT |
| +010+ | 7.54 | Babe Adams | 258 | PIT |
| +013+ | 6.7 | Stan Coveleski | 304.3 | CLE |
| +015+ | 6.03 | Bob Shawkey | 257.7 | NYA |
| +014+ | 6.03 | Hippo Vaughn | 294 | CHN |
| +017+ | 5.89 | Dutch Ruether | 265.7 | CIN |
| +022+ | 5.39 | Bill Doak | 270 | SLN |
| +024+ | 5.12 | Fred Toney | 271 | SFN |
| +025+ | 4.87 | Jesse Barnes | 289 | SFN |
| +026+ | 4.8 | Sherry Smith | 130.7 | LAN |
| +027+ | 4.54 | Leon Cadore | 250.3 | LAN |
| +030+ | 4.37 | Jim Bagby | 319.7 | CLE |
| +031+ | 4.34 | Red Faber | 316 | CHA |
| +032+ | 4.3 | Dolf Luque | 206.3 | CIN |
| +036+ | 3.8 | Phil Douglas | 214.7 | SFN |
| +040+ | 3.49 | Elmer Ponder | 196 | PIT |
| +046+ | 2.87 | Ray Fisher | 193.7 | CIN |
| +049+ | 2.83 | Lee Meadows | 234.7 | PHI |
| +053+ | 2.61 | Carl Mays | 303 | NYA |
| +054+ | 2.58 | Dixie Davis | 254 | BAL |
| +057+ | 2.54 | Eddie Rommel | 165 | OAK |
| +061+ | 2.28 | Jack Quinn | 245.3 | NYA |
| +062+ | 2.23 | Dana Fillingim | 262.3 | ATL |
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