| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 12.2 | 191806210_MIN_NYA |
| Hippo Vaughn | CHN | 4.03 | 191806220_CHN_PIT |
| Stan Coveleski | CLE | 3.98 | 191806220_CLE_CHA |
| Carl Mays | BOS | 2.41 | 191806210_OAK_BOS |
| Dana Fillingim | ATL | 1.72 | 191806220_ATL_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Davenport | BAL | -4.68 | 191806232_BAL_DET |
| Ray Caldwell | NYA | -2.12 | 191806220_MIN_NYA |
| Bob Steele | PIT | -1.89 | 191806210_CHN_PIT |
| Bernie Boland | DET | -0.92 | 191806231_BAL_DET |
| Gene Packard | SLN | -0.44 | 191806222_CIN_SLN |
Based on accumulated WAA for this season up to 1918-06-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.59 | Walter Johnson | 157.3 | MIN |
| +002+ | 5.12 | Stan Coveleski | 164.7 | CLE |
| +003+ | 3.79 | Dana Fillingim | 81 | ATL |
| +005+ | 3.1 | Hippo Vaughn | 131 | CHN |
| +008+ | 2.76 | Bullet Joe Bush | 127 | BOS |
| +019+ | 2.12 | Carl Mays | 136.7 | BOS |
| +021+ | 2.11 | Urban Shocker | 94.7 | BAL |
| +024+ | 1.82 | Frank Shellenback | 76 | CHA |
| +026+ | 1.72 | Phil Douglas | 36 | CHN |
| +027+ | 1.68 | Burleigh Grimes | 107.7 | LAN |
| +031+ | 1.63 | Bob Harmon | 80.7 | PIT |
| +036+ | 1.5 | Eddie Cicotte | 121.3 | CHA |
| +038+ | 1.45 | Guy Morton | 109.7 | CLE |
| +039+ | 1.36 | Rube Marquard | 119 | LAN |
| XXXXX | 1.23 | Slim Sallee | 97 | SFN |
| XXXXX | 1.22 | Lefty Tyler | 115 | CHN |
| XXXXX | 1.2 | Scott Perry | 153.7 | OAK |
| XXXXX | 1.16 | Hank Thormahlen | 88.3 | NYA |
| XXXXX | 1.06 | Red Ames | 87.3 | SLN |
| XXXXX | 1.02 | Rube Bressler | 119.7 | CIN |
| XXXXX | 0.99 | Al Demaree | 64 | SFN |
| XXXXX | 0.93 | Wilbur Cooper | 112 | PIT |
| XXXXX | 0.91 | Pol Perritt | 82.3 | SFN |
| XXXXX | 0.88 | Leon Cadore | 17 | LAN |
| XXXXX | 0.8 | Art Nehf | 138.3 | ATL |
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