| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 13.7 | 191808042_MIN_DET |
| Stan Coveleski | CLE | 5.62 | 191808042_BOS_CLE |
| Carl Mays | BOS | 4.02 | 191808020_BOS_CLE |
| Eddie Cicotte | CHA | 2.4 | 191808042_OAK_CHA |
| Rube Marquard | LAN | 1.74 | 191808031_CIN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Willie Adams | OAK | -5.18 | 191808041_OAK_CHA |
| Pete Schneider | CIN | -2.15 | 191808031_CIN_LAN |
| Tom Rogers | BAL | -2.15 | 191808042_NYA_BAL |
| Milt Watson | PHI | -1.47 | 191808020_SLN_PHI |
| Happy Finneran | NYA | -1.39 | 191808041_NYA_BAL |
Based on accumulated WAA for this season up to 1918-08-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.65 | Walter Johnson | 267.3 | MIN |
| +002+ | 6.38 | Stan Coveleski | 260.7 | CLE |
| +003+ | 5.88 | Hippo Vaughn | 230.3 | CHN |
| +006+ | 4.45 | Bullet Joe Bush | 227.7 | BOS |
| +008+ | 3.87 | Allen Sothoron | 186 | BAL |
| +011+ | 3.55 | Scott Perry | 257.7 | OAK |
| +012+ | 3.51 | Carl Mays | 229.3 | BOS |
| +013+ | 3.46 | Red Ames | 168.7 | SLN |
| +016+ | 3.22 | Burleigh Grimes | 204 | LAN |
| +018+ | 3.08 | Harry Harper | 186.3 | MIN |
| +019+ | 2.92 | Lefty Tyler | 207 | CHN |
| +022+ | 2.76 | Eddie Cicotte | 215.3 | CHA |
| +041+ | 1.92 | Red Causey | 109.3 | SFN |
| +042+ | 1.91 | Rube Marquard | 200 | LAN |
| +044+ | 1.74 | Al Demaree | 135.3 | SFN |
| +050+ | 1.67 | Phil Douglas | 111.7 | CHN |
| +052+ | 1.61 | Eddie Matteson | 33 | MIN |
| +055+ | 1.57 | Babe Ruth | 115 | BOS |
| +057+ | 1.52 | Bernie Boland | 162 | DET |
| +060+ | 1.46 | Reb Russell | 91 | CHA |
| +069+ | 1.27 | Guy Morton | 180.7 | CLE |
| +068+ | 1.27 | Sad Sam Jones | 139 | BOS |
| XXXXX | 1.17 | Hooks Dauss | 202.7 | DET |
| XXXXX | 1.14 | Dick Rudolph | 108 | ATL |
| XXXXX | 1.08 | Hod Eller | 147 | CIN |
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