| Starter | Tm | Tier | Game |
|---|---|---|---|
| Burleigh Grimes | LAN | 6.08 | 192009160_CIN_LAN |
| Wilbur Cooper | PIT | 3.22 | 192009151_PIT_ATL |
| Dutch Ruether | CIN | 2.9 | 192009160_CIN_LAN |
| Bob Shawkey | NYA | 2.86 | 192009140_NYA_DET |
| Hippo Vaughn | CHN | 2.48 | 192009160_CHN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Speed Martin | CHN | -3.54 | 192009150_CHN_LAN |
| Bullet Joe Bush | BOS | -2.24 | 192009160_BOS_DET |
| Marv Goodwin | SLN | -1.98 | 192009161_SLN_ATL |
| Carl Weilman | BAL | -1.32 | 192009150_BOS_BAL |
| Red Causey | PHI | -1.21 | 192009140_CIN_PHI |
Based on accumulated WAA for this season up to 1920-09-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10.62 | Pete Alexander | 327.3 | CHN |
| +005+ | 8.85 | Burleigh Grimes | 291 | LAN |
| +007+ | 7.03 | Wilbur Cooper | 298.7 | PIT |
| +008+ | 6.84 | Babe Adams | 240 | PIT |
| +012+ | 6.29 | Bob Shawkey | 239.3 | NYA |
| +013+ | 6.24 | Stan Coveleski | 282.3 | CLE |
| +016+ | 5.89 | Hippo Vaughn | 281.7 | CHN |
| +017+ | 5.73 | Dutch Ruether | 258.7 | CIN |
| +021+ | 4.95 | Dolf Luque | 195.7 | CIN |
| +023+ | 4.83 | Jesse Barnes | 274 | SFN |
| +024+ | 4.71 | Bill Doak | 249 | SLN |
| +029+ | 4.22 | Sherry Smith | 121.3 | LAN |
| +030+ | 4.14 | Fred Toney | 252 | SFN |
| +035+ | 3.76 | Red Faber | 290 | CHA |
| +038+ | 3.45 | Leon Cadore | 235.3 | LAN |
| +042+ | 2.9 | Phil Douglas | 199 | SFN |
| +043+ | 2.82 | Jim Bagby | 299.7 | CLE |
| +045+ | 2.73 | Lee Meadows | 219 | PHI |
| +049+ | 2.53 | Elmer Ponder | 177 | PIT |
| +055+ | 2.25 | Lefty Tyler | 171.3 | CHN |
| +057+ | 2.23 | Dana Fillingim | 238 | ATL |
| +056+ | 2.23 | Eddie Rommel | 152.7 | OAK |
| +058+ | 2.17 | Jack Quinn | 240.3 | NYA |
| +060+ | 2.08 | Dave Keefe | 111.7 | OAK |
| +066+ | 1.98 | Ray Fisher | 176.7 | CIN |
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