| Starter | Tm | Tier | Game |
|---|---|---|---|
| Elmer Myers | OAK | -5.72 | 191805292_OAK_NYA |
| Jim Shaw | MIN | -3.87 | 191805280_DET_MIN |
| Bill James | DET | -2.81 | 191805290_DET_CLE |
| Burleigh Grimes | LAN | -2.57 | 191805270_LAN_SLN |
| Happy Finneran | NYA | -1.49 | 191805292_OAK_NYA |
Based on accumulated WAA for this season up to 1918-05-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.48 | Stan Coveleski | 98.3 | CLE |
| +002+ | 3.47 | Walter Johnson | 99.7 | MIN |
| +003+ | 2.88 | Scott Perry | 103.3 | OAK |
| +004+ | 2.57 | Dana Fillingim | 44 | ATL |
| +006+ | 2.45 | Hippo Vaughn | 78 | CHN |
| +009+ | 2.12 | Bill Sherdel | 57.3 | SLN |
| +010+ | 2.11 | Bullet Joe Bush | 79.3 | BOS |
| +012+ | 2.05 | Red Faber | 55.7 | CHA |
| +013+ | 1.9 | Hank Thormahlen | 64 | NYA |
| +014+ | 1.87 | Fred Toney | 47 | CIN |
| +016+ | 1.77 | Lefty Tyler | 71 | CHN |
| +020+ | 1.59 | Red Ames | 52.3 | SLN |
| +023+ | 1.47 | Lefty Williams | 83 | CHA |
| +026+ | 1.35 | Jesse Barnes | 54.7 | SFN |
| XXXXX | 1.23 | Eric Erickson | 76.3 | DET |
| XXXXX | 1.2 | Hod Eller | 65.3 | CIN |
| XXXXX | 1.17 | Jeff Tesreau | 61.3 | SFN |
| XXXXX | 1.16 | Slim Love | 82.3 | NYA |
| XXXXX | 1.16 | Erskine Mayer | 75.7 | PHI |
| XXXXX | 1.04 | Bunny Hearn | 74 | ATL |
| XXXXX | 1.01 | Grover Lowdermilk | 46 | BAL |
| XXXXX | 0.92 | Wilbur Cooper | 58.3 | PIT |
| XXXXX | 0.76 | Harry Weaver | 27.3 | CHN |
| XXXXX | 0.73 | Babe Ruth | 61.7 | BOS |
| XXXXX | 0.61 | Carl Mays | 88.3 | BOS |
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