| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Adams | OAK | -3.27 | 191807310_OAK_CLE |
| Jakie May | SLN | -3.07 | 191807312_SLN_LAN |
| Bill Bailey | DET | -1.64 | 191807312_NYA_DET |
| Bert Gallia | BAL | -1.53 | 191807310_BOS_BAL |
| Jim Shaw | MIN | -1.41 | 191807300_MIN_CHA |
Based on accumulated WAA for this season up to 1918-07-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.86 | Walter Johnson | 250 | MIN |
| +002+ | 5.98 | Stan Coveleski | 245.7 | CLE |
| +003+ | 5.23 | Hippo Vaughn | 221.3 | CHN |
| +006+ | 4.4 | Bullet Joe Bush | 221.7 | BOS |
| +007+ | 4.15 | Carl Mays | 224.3 | BOS |
| +010+ | 3.52 | Allen Sothoron | 178 | BAL |
| +017+ | 2.84 | Red Ames | 159.7 | SLN |
| +018+ | 2.8 | Burleigh Grimes | 195 | LAN |
| +020+ | 2.74 | Rube Marquard | 194 | LAN |
| +023+ | 2.6 | Scott Perry | 244.3 | OAK |
| +025+ | 2.54 | Harry Harper | 177.3 | MIN |
| +026+ | 2.52 | Bernie Boland | 157 | DET |
| +027+ | 2.5 | Eddie Cicotte | 205.3 | CHA |
| +028+ | 2.49 | Lefty Tyler | 198 | CHN |
| +035+ | 2.28 | Pol Perritt | 163.3 | SFN |
| +039+ | 2.09 | Phil Douglas | 105.7 | CHN |
| +043+ | 1.8 | Wilbur Cooper | 202.3 | PIT |
| +044+ | 1.74 | Al Demaree | 129.3 | SFN |
| +045+ | 1.73 | Red Causey | 100.3 | SFN |
| +046+ | 1.7 | Slim Sallee | 132 | SFN |
| +062+ | 1.28 | Brad Hogg | 164.3 | PHI |
| XXXXX | 1.22 | Dick Rudolph | 108 | ATL |
| XXXXX | 1.18 | Eddie Matteson | 26 | MIN |
| XXXXX | 1.14 | Hooks Dauss | 184.7 | DET |
| XXXXX | 1.08 | Reb Russell | 82 | CHA |
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