| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Faber | CHA | 4.14 | 191805240_CHA_BOS |
| Fred Toney | CIN | 2.98 | 191805240_PHI_CIN |
| Lefty Tyler | CHN | 2.37 | 191805250_SFN_CHN |
| Stan Coveleski | CLE | 1.99 | 191805240_CLE_NYA |
| Carl Mays | BOS | 1.88 | 191805250_CHA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Elmer Myers | OAK | -4.45 | 191805240_BAL_OAK |
| Jim Shaw | MIN | -4.14 | 191805250_DET_MIN |
| Burleigh Grimes | LAN | -2.45 | 191805250_LAN_SLN |
| Bob Steele | PIT | -1.43 | 191805240_ATL_PIT |
| Bert Gallia | BAL | -1.04 | 191805240_BAL_OAK |
Based on accumulated WAA for this season up to 1918-05-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.44 | Stan Coveleski | 98.3 | CLE |
| +002+ | 3.01 | Walter Johnson | 82.7 | MIN |
| +003+ | 2.9 | Scott Perry | 94.3 | OAK |
| +007+ | 2.08 | Hippo Vaughn | 69 | CHN |
| +008+ | 2.05 | Red Faber | 55.7 | CHA |
| +009+ | 1.97 | Dana Fillingim | 35 | ATL |
| +011+ | 1.89 | Fred Toney | 47 | CIN |
| +012+ | 1.8 | Lefty Tyler | 71 | CHN |
| +013+ | 1.77 | Bill Sherdel | 48.3 | SLN |
| +014+ | 1.67 | Jeff Tesreau | 53.3 | SFN |
| +015+ | 1.63 | Hod Eller | 65 | CIN |
| +018+ | 1.54 | Hank Thormahlen | 55 | NYA |
| +020+ | 1.47 | Bullet Joe Bush | 69.3 | BOS |
| +021+ | 1.46 | Lefty Williams | 83 | CHA |
| +025+ | 1.34 | Jesse Barnes | 54.7 | SFN |
| XXXXX | 1.24 | Red Ames | 43.3 | SLN |
| XXXXX | 0.99 | Eric Erickson | 67.3 | DET |
| XXXXX | 0.87 | Bunny Hearn | 65 | ATL |
| XXXXX | 0.79 | Slim Love | 73.3 | NYA |
| XXXXX | 0.77 | Harry Weaver | 27.3 | CHN |
| XXXXX | 0.75 | Babe Ruth | 61.7 | BOS |
| XXXXX | 0.69 | Guy Morton | 52.7 | CLE |
| XXXXX | 0.62 | Grover Lowdermilk | 37 | BAL |
| XXXXX | 0.59 | Erskine Mayer | 66.7 | PHI |
| XXXXX | 0.55 | Rube Benton | 24 | SFN |
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