| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 12.2 | 191806210_MIN_NYA |
| Eddie Cicotte | CHA | 4.26 | 191806200_CLE_CHA |
| Carl Mays | BOS | 2.41 | 191806210_OAK_BOS |
| Fred Toney | CIN | 1.34 | 191806210_CIN_SLN |
| Lefty Tyler | CHN | 0.95 | 191806210_CHN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Shaw | MIN | -2.76 | 191806190_MIN_NYA |
| Bob Steele | PIT | -1.89 | 191806210_CHN_PIT |
| Happy Finneran | NYA | -1.45 | 191806200_MIN_NYA |
| Jack Coombs | LAN | -1.42 | 191806200_SFN_LAN |
| Tom Rogers | BAL | -0.62 | 191806190_DET_BAL |
Based on accumulated WAA for this season up to 1918-06-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.56 | Walter Johnson | 157.3 | MIN |
| +002+ | 4.96 | Stan Coveleski | 155.7 | CLE |
| +003+ | 4.05 | Dana Fillingim | 72 | ATL |
| +006+ | 2.76 | Bullet Joe Bush | 127 | BOS |
| +007+ | 2.73 | Red Faber | 80.7 | CHA |
| +008+ | 2.73 | Hippo Vaughn | 122 | CHN |
| +013+ | 2.42 | Frank Shellenback | 72.3 | CHA |
| +021+ | 2.12 | Carl Mays | 136.7 | BOS |
| +027+ | 1.7 | Urban Shocker | 82 | BAL |
| +030+ | 1.56 | Phil Douglas | 27 | CHN |
| +032+ | 1.49 | Eddie Cicotte | 121.3 | CHA |
| +033+ | 1.48 | Pol Perritt | 78.3 | SFN |
| +035+ | 1.44 | Guy Morton | 109.7 | CLE |
| +037+ | 1.38 | Brad Hogg | 98 | PHI |
| +039+ | 1.35 | Rube Marquard | 119 | LAN |
| +040+ | 1.29 | Scott Perry | 145.7 | OAK |
| +041+ | 1.26 | Bob Harmon | 71.7 | PIT |
| XXXXX | 1.22 | Slim Sallee | 97 | SFN |
| XXXXX | 1.22 | Lefty Tyler | 115 | CHN |
| XXXXX | 1.16 | Hank Thormahlen | 88.3 | NYA |
| XXXXX | 1.1 | Burleigh Grimes | 98.7 | LAN |
| XXXXX | 1.02 | Rube Bressler | 119.7 | CIN |
| XXXXX | 0.98 | Al Demaree | 64 | SFN |
| XXXXX | 0.89 | Frank Miller | 88.7 | PIT |
| XXXXX | 0.88 | Leon Cadore | 17 | LAN |
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