| Starter | Tm | Tier | Game |
|---|---|---|---|
| Stan Coveleski | CLE | 5.5 | 192005190_CLE_NYA |
| Dutch Ruether | CIN | 3.76 | 192005200_LAN_CIN |
| Babe Adams | PIT | 3.06 | 192005200_ATL_PIT |
| Pete Alexander | CHN | 2.34 | 192005200_SFN_CHN |
| Eddie Cicotte | CHA | 1.87 | 192005190_CHA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Causey | PHI | -3.33 | 192005190_PHI_SLN |
| Hooks Dauss | DET | -1.49 | 192005210_DET_BOS |
| Ray Caldwell | CLE | -1.33 | 192005210_CLE_OAK |
| Elmer Jacobs | SLN | -0.85 | 192005200_PHI_SLN |
| Harry Courtney | MIN | -0.77 | 192005200_CHA_MIN |
Based on accumulated WAA for this season up to 1920-05-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.52 | Dutch Ruether | 81.7 | CIN |
| +003+ | 2.71 | Stan Coveleski | 78 | CLE |
| +004+ | 2.64 | Babe Adams | 68 | PIT |
| +005+ | 2.55 | Dana Fillingim | 59 | ATL |
| +006+ | 2.41 | Hippo Vaughn | 65.7 | CHN |
| +007+ | 2.3 | Leon Cadore | 65.3 | LAN |
| +008+ | 1.93 | Jack Quinn | 59 | NYA |
| +009+ | 1.84 | Pete Alexander | 81 | CHN |
| +011+ | 1.64 | Herb Pennock | 48.3 | BOS |
| +012+ | 1.64 | Bob Shawkey | 60.7 | NYA |
| +010+ | 1.64 | Burleigh Grimes | 47.7 | LAN |
| +013+ | 1.53 | Jesse Haines | 69.7 | SLN |
| +019+ | 1.37 | Red Faber | 62.7 | CHA |
| +024+ | 1.34 | Bill Doak | 49 | SLN |
| +025+ | 1.3 | Hank Thormahlen | 36.7 | NYA |
| +026+ | 1.28 | Jim Bagby | 73 | CLE |
| XXXXX | 1.17 | Allen Russell | 50.7 | BOS |
| XXXXX | 1.08 | Eddie Cicotte | 35.3 | CHA |
| XXXXX | 1.02 | Hugh McQuillan | 32 | ATL |
| XXXXX | 1.02 | Phil Douglas | 31 | SFN |
| XXXXX | 1.01 | Joe Oeschger | 67.7 | ATL |
| XXXXX | 0.75 | Wilbur Cooper | 65 | PIT |
| XXXXX | 0.71 | Lefty Williams | 71 | CHA |
| XXXXX | 0.7 | Sad Sam Jones | 56 | BOS |
| XXXXX | 0.68 | Dixie Davis | 22.7 | BAL |
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