| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hippo Vaughn | CHN | 7.31 | 192005250_PHI_CHN |
| Stan Coveleski | CLE | 5.51 | 192005230_OAK_CLE |
| Dutch Ruether | CIN | 4.11 | 192005240_ATL_CIN |
| Babe Adams | PIT | 3.42 | 192005240_LAN_PIT |
| Carl Mays | NYA | 1.92 | 192005240_DET_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ferdie Schupp | SLN | -3.87 | 192005240_SFN_SLN |
| Red Causey | PHI | -3.58 | 192005230_PHI_CHN |
| Pat Martin | OAK | -1.3 | 192005230_OAK_CLE |
| Elam Vangilder | BAL | -1.11 | 192005240_BAL_BOS |
| Jack Scott | ATL | -0.87 | 192005230_ATL_CIN |
Based on accumulated WAA for this season up to 1920-05-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.7 | Dutch Ruether | 90.7 | CIN |
| +002+ | 3.3 | Stan Coveleski | 87 | CLE |
| +004+ | 3.03 | Babe Adams | 77 | PIT |
| +005+ | 2.65 | Leon Cadore | 73.3 | LAN |
| +006+ | 2.59 | Hippo Vaughn | 74.7 | CHN |
| +007+ | 2.43 | Pete Alexander | 90 | CHN |
| +008+ | 2.12 | Jack Quinn | 68 | NYA |
| +009+ | 2.1 | Dana Fillingim | 61 | ATL |
| +010+ | 2.04 | Burleigh Grimes | 56.7 | LAN |
| +011+ | 2.01 | Red Faber | 71.7 | CHA |
| +014+ | 1.91 | Jesse Haines | 78.7 | SLN |
| +015+ | 1.82 | Bob Shawkey | 69.7 | NYA |
| +016+ | 1.82 | Eric Erickson | 59 | MIN |
| +021+ | 1.59 | Herb Pennock | 48.3 | BOS |
| +023+ | 1.43 | Hank Thormahlen | 44.7 | NYA |
| XXXXX | 1.21 | Jim Bagby | 73 | CLE |
| XXXXX | 1.18 | Phil Douglas | 39.3 | SFN |
| XXXXX | 1.12 | Bill Doak | 55.3 | SLN |
| XXXXX | 1.12 | Allen Russell | 50.7 | BOS |
| XXXXX | 0.97 | Sad Sam Jones | 67 | BOS |
| XXXXX | 0.96 | Al Mamaux | 29 | LAN |
| XXXXX | 0.95 | Eddie Cicotte | 42.3 | CHA |
| XXXXX | 0.95 | Urban Shocker | 46 | BAL |
| XXXXX | 0.87 | Hugh McQuillan | 39 | ATL |
| XXXXX | 0.82 | Elmer Ponder | 27 | PIT |
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