| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hippo Vaughn | CHN | 6.18 | 191806040_CHN_ATL |
| Stan Coveleski | CLE | 3.63 | 191806060_BOS_CLE |
| Carl Mays | BOS | 2.21 | 191806040_BOS_DET |
| Wilbur Cooper | PIT | 2.05 | 191806050_PIT_SFN |
| Pete Schneider | CIN | 0.67 | 191806041_CIN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Elmer Myers | OAK | -7.33 | 191806040_OAK_BAL |
| Dave Davenport | BAL | -4 | 191806040_OAK_BAL |
| Bill James | DET | -3.75 | 191806040_BOS_DET |
| Jim Shaw | MIN | -3.13 | 191806040_MIN_CLE |
| Ray Caldwell | NYA | -1.26 | 191806040_NYA_CHA |
Based on accumulated WAA for this season up to 1918-06-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.97 | Stan Coveleski | 126.3 | CLE |
| +002+ | 4.39 | Walter Johnson | 117.3 | MIN |
| +003+ | 3.4 | Hippo Vaughn | 96 | CHN |
| +004+ | 3.16 | Dana Fillingim | 53 | ATL |
| +010+ | 2.19 | Red Ames | 68.3 | SLN |
| +012+ | 2.08 | Red Faber | 62.7 | CHA |
| +013+ | 2.02 | Scott Perry | 121.7 | OAK |
| +014+ | 1.91 | Bullet Joe Bush | 96.7 | BOS |
| +018+ | 1.64 | Bill Sherdel | 59.7 | SLN |
| +020+ | 1.55 | Hank Thormahlen | 74.3 | NYA |
| +027+ | 1.32 | Urban Shocker | 51 | BAL |
| +028+ | 1.31 | Bunny Hearn | 91 | ATL |
| XXXXX | 1.18 | Jeff Tesreau | 71.3 | SFN |
| XXXXX | 1.18 | Brad Hogg | 69.7 | PHI |
| XXXXX | 1.17 | Frank Shellenback | 38.3 | CHA |
| XXXXX | 1.14 | Eric Erickson | 85.3 | DET |
| XXXXX | 1 | Wilbur Cooper | 75 | PIT |
| XXXXX | 0.95 | Frank Miller | 68 | PIT |
| XXXXX | 0.77 | Lefty Tyler | 81.7 | CHN |
| XXXXX | 0.74 | Hod Eller | 74 | CIN |
| XXXXX | 0.7 | Eddie Cicotte | 87.3 | CHA |
| XXXXX | 0.7 | Sad Sam Jones | 36.3 | BOS |
| XXXXX | 0.63 | Grover Lowdermilk | 62.7 | BAL |
| XXXXX | 0.6 | Fred Toney | 59.3 | CIN |
| XXXXX | 0.6 | Leon Cadore | 9 | LAN |
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