| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 15.04 | 191808252_CHA_MIN |
| Scott Perry | OAK | 3.41 | 191808242_CHA_OAK |
| Burleigh Grimes | LAN | 3.41 | 191808241_LAN_CHN |
| Carl Mays | BOS | 2.5 | 191808260_DET_BOS |
| Lefty Tyler | CHN | 1.82 | 191808252_LAN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Adams | OAK | -6.3 | 191808261_CLE_OAK |
| Happy Finneran | NYA | -2.69 | 191808241_DET_NYA |
| Gene Packard | SLN | -1.92 | 191808262_SFN_SLN |
| Dave Davenport | BAL | -1.88 | 191808260_BAL_NYA |
| George Smith | LAN | -1.48 | 191808252_LAN_CHN |
Based on accumulated WAA for this season up to 1918-08-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.59 | Walter Johnson | 316 | MIN |
| +004+ | 6.13 | Scott Perry | 324.7 | OAK |
| +005+ | 5.77 | Stan Coveleski | 296.3 | CLE |
| +007+ | 4.82 | Burleigh Grimes | 254 | LAN |
| +010+ | 4 | Allen Sothoron | 209 | BAL |
| +014+ | 3.55 | Bullet Joe Bush | 257.7 | BOS |
| +016+ | 3.52 | Lefty Tyler | 255.3 | CHN |
| +018+ | 3.31 | Red Ames | 199 | SLN |
| +020+ | 3.25 | Carl Mays | 275.3 | BOS |
| +021+ | 3.07 | Wilbur Cooper | 255 | PIT |
| +022+ | 2.97 | Harry Harper | 235 | MIN |
| +030+ | 2.65 | George Mogridge | 218.3 | NYA |
| +048+ | 2.02 | Babe Ruth | 158 | BOS |
| +051+ | 1.88 | Hod Eller | 202 | CIN |
| +055+ | 1.71 | Sad Sam Jones | 166 | BOS |
| +057+ | 1.68 | Phil Douglas | 146.3 | CHN |
| +059+ | 1.62 | Speed Martin | 35.7 | CHN |
| +062+ | 1.53 | Frank Miller | 155.3 | PIT |
| +067+ | 1.34 | Jake Northrop | 40 | ATL |
| XXXXX | 1.11 | Guy Morton | 210.7 | CLE |
| XXXXX | 1.1 | Al Demaree | 142 | SFN |
| XXXXX | 1.07 | Rube Bressler | 128.7 | CIN |
| XXXXX | 1.04 | Bill Doak | 203 | SLN |
| XXXXX | 1 | Carmen Hill | 32 | PIT |
| XXXXX | 0.95 | Fred Toney | 204 | TOT |
_