| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hippo Vaughn | CHN | 7.15 | 191808140_PIT_CHN |
| Stan Coveleski | CLE | 5.11 | 191808150_CLE_NYA |
| Carl Mays | BOS | 2.41 | 191808150_CHA_BOS |
| Eddie Cicotte | CHA | 1.98 | 191808160_CHA_BOS |
| Burleigh Grimes | LAN | 1.92 | 191808140_PHI_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Davenport | BAL | -4.08 | 191808140_BAL_OAK |
| Gene Packard | SLN | -2.82 | 191808160_ATL_SLN |
| George Smith | LAN | -2.33 | 191808150_LAN_PIT |
| Happy Finneran | NYA | -2.23 | 191808160_CLE_NYA |
| Pete Schneider | CIN | -1.79 | 191808160_SFN_CIN |
Based on accumulated WAA for this season up to 1918-08-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.73 | Walter Johnson | 293 | MIN |
| +002+ | 6.57 | Hippo Vaughn | 258.3 | CHN |
| +003+ | 5.83 | Stan Coveleski | 280.3 | CLE |
| +006+ | 4.58 | Burleigh Grimes | 231 | LAN |
| +008+ | 4.25 | Scott Perry | 285.7 | OAK |
| +010+ | 3.5 | Allen Sothoron | 193 | BAL |
| +012+ | 3.48 | Carl Mays | 257.3 | BOS |
| +014+ | 3.32 | Bullet Joe Bush | 248.7 | BOS |
| +020+ | 3.05 | Harry Harper | 221 | MIN |
| +025+ | 2.86 | Wilbur Cooper | 237 | PIT |
| +026+ | 2.83 | Eddie Cicotte | 242 | CHA |
| +027+ | 2.77 | Lefty Tyler | 228.3 | CHN |
| +029+ | 2.72 | Red Ames | 182 | SLN |
| +040+ | 2.15 | Hod Eller | 172 | CIN |
| +041+ | 2.13 | Babe Ruth | 133 | BOS |
| +054+ | 1.67 | Red Causey | 127.3 | SFN |
| +056+ | 1.62 | Eddie Matteson | 47 | MIN |
| +061+ | 1.45 | Sad Sam Jones | 148 | BOS |
| +062+ | 1.4 | Brad Hogg | 191 | PHI |
| +065+ | 1.38 | Jim Bagby | 247 | CLE |
| +069+ | 1.3 | Phil Douglas | 129.3 | CHN |
| +068+ | 1.3 | George Mogridge | 192.3 | NYA |
| XXXXX | 1.17 | Frank Shellenback | 164.3 | CHA |
| XXXXX | 1.17 | Rube Bressler | 128.7 | CIN |
| XXXXX | 1.14 | Bernie Boland | 176 | DET |
_