| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hippo Vaughn | CHN | 6.18 | 191806040_CHN_ATL |
| Stan Coveleski | CLE | 3.47 | 191806030_MIN_CLE |
| Eddie Cicotte | CHA | 3.39 | 191806030_NYA_CHA |
| Carl Mays | BOS | 2.21 | 191806040_BOS_DET |
| Wilbur Cooper | PIT | 2.05 | 191806050_PIT_SFN |
| 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 1918-06-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.39 | Walter Johnson | 117.3 | MIN |
| +002+ | 4.38 | Stan Coveleski | 116.3 | CLE |
| +003+ | 3.43 | Hippo Vaughn | 96 | CHN |
| +004+ | 3.17 | Dana Fillingim | 53 | ATL |
| +008+ | 2.2 | Red Ames | 68.3 | SLN |
| +011+ | 2.1 | Red Faber | 62.7 | CHA |
| +013+ | 2.05 | Scott Perry | 121.7 | OAK |
| +014+ | 1.96 | Bullet Joe Bush | 96.7 | BOS |
| +018+ | 1.65 | Bill Sherdel | 59.7 | SLN |
| +021+ | 1.57 | Hank Thormahlen | 74.3 | NYA |
| +027+ | 1.35 | Jesse Barnes | 54.7 | SFN |
| +028+ | 1.34 | Urban Shocker | 51 | BAL |
| +029+ | 1.34 | Bunny Hearn | 91 | ATL |
| +031+ | 1.28 | Jeff Tesreau | 69.3 | SFN |
| XXXXX | 1.2 | Brad Hogg | 69.7 | PHI |
| XXXXX | 1.18 | Frank Shellenback | 38.3 | CHA |
| XXXXX | 1.14 | Eric Erickson | 85.3 | DET |
| XXXXX | 1.01 | Wilbur Cooper | 75 | PIT |
| XXXXX | 0.96 | Frank Miller | 68 | PIT |
| XXXXX | 0.8 | Lefty Tyler | 81.7 | CHN |
| XXXXX | 0.77 | Hod Eller | 74 | CIN |
| XXXXX | 0.73 | Eddie Cicotte | 87.3 | CHA |
| XXXXX | 0.72 | Slim Love | 90.7 | NYA |
| XXXXX | 0.66 | Grover Lowdermilk | 62.7 | BAL |
| XXXXX | 0.62 | Fred Toney | 59.3 | CIN |
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