| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 9.72 | 191806020_MIN_CLE |
| Hippo Vaughn | CHN | 6.18 | 191806040_CHN_ATL |
| Babe Ruth | BOS | 4.87 | 191806020_BOS_DET |
| Stan Coveleski | CLE | 3.47 | 191806030_MIN_CLE |
| Eddie Cicotte | CHA | 3.39 | 191806030_NYA_CHA |
| 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 1918-06-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.37 | Stan Coveleski | 116.3 | CLE |
| +002+ | 4.09 | Walter Johnson | 112.3 | MIN |
| +003+ | 3.41 | Hippo Vaughn | 96 | CHN |
| +004+ | 3.16 | Dana Fillingim | 53 | ATL |
| +006+ | 2.31 | Scott Perry | 113.3 | OAK |
| +009+ | 2.08 | Red Faber | 62.7 | CHA |
| +012+ | 1.96 | Bullet Joe Bush | 87.3 | BOS |
| +013+ | 1.94 | Red Ames | 61.3 | SLN |
| +018+ | 1.77 | Hank Thormahlen | 71 | NYA |
| +020+ | 1.63 | Bill Sherdel | 59.7 | SLN |
| +028+ | 1.34 | Urban Shocker | 51 | BAL |
| +027+ | 1.34 | Jesse Barnes | 54.7 | SFN |
| +029+ | 1.32 | Erskine Mayer | 84.7 | PHI |
| +030+ | 1.27 | Jeff Tesreau | 69.3 | SFN |
| XXXXX | 1.2 | Bunny Hearn | 83 | ATL |
| XXXXX | 1.18 | Brad Hogg | 69.7 | PHI |
| XXXXX | 1.17 | Frank Shellenback | 38.3 | CHA |
| XXXXX | 1.15 | Eric Erickson | 85.3 | DET |
| XXXXX | 1.04 | Wilbur Cooper | 66.3 | PIT |
| XXXXX | 0.94 | Frank Miller | 68 | PIT |
| XXXXX | 0.78 | Lefty Tyler | 81.7 | CHN |
| XXXXX | 0.75 | Hod Eller | 74 | CIN |
| XXXXX | 0.71 | Rube Bressler | 89 | CIN |
| XXXXX | 0.61 | Fred Toney | 59.3 | CIN |
| XXXXX | 0.57 | Slim Sallee | 62 | SFN |
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