| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hippo Vaughn | CHN | 4.66 | 191806260_SLN_CHN |
| Stan Coveleski | CLE | 4.52 | 191806261_CLE_BAL |
| Eddie Cicotte | CHA | 3.29 | 191806240_CHA_DET |
| Carl Mays | BOS | 3.07 | 191806260_BOS_NYA |
| Rube Marquard | LAN | 1.38 | 191806260_LAN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill James | DET | -3.38 | 191806240_CHA_DET |
| Jim Shaw | MIN | -2.69 | 191806260_OAK_MIN |
| Jack Coombs | LAN | -1.86 | 191806250_LAN_PHI |
| Elmer Jacobs | PHI | -1.11 | 191806260_LAN_PHI |
| Tom Rogers | BAL | -1.05 | 191806251_CLE_BAL |
Based on accumulated WAA for this season up to 1918-06-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.58 | Walter Johnson | 157.3 | MIN |
| +002+ | 4.83 | Stan Coveleski | 173.3 | CLE |
| +004+ | 3.77 | Dana Fillingim | 81 | ATL |
| +005+ | 3.66 | Hippo Vaughn | 140 | CHN |
| +011+ | 2.66 | Bullet Joe Bush | 135.3 | BOS |
| +016+ | 2.39 | Frank Shellenback | 85 | CHA |
| +023+ | 2.22 | Carl Mays | 144.7 | BOS |
| +024+ | 2.09 | Urban Shocker | 94.7 | BAL |
| +026+ | 1.79 | Slim Sallee | 106 | SFN |
| +027+ | 1.76 | Burleigh Grimes | 108.7 | LAN |
| +028+ | 1.71 | Phil Douglas | 36 | CHN |
| +032+ | 1.62 | Bob Harmon | 80.7 | PIT |
| +033+ | 1.61 | Rube Marquard | 126 | LAN |
| +034+ | 1.58 | Lefty Tyler | 121 | CHN |
| +035+ | 1.55 | Al Demaree | 73 | SFN |
| +041+ | 1.34 | Guy Morton | 118 | CLE |
| +043+ | 1.31 | Red Ames | 94.3 | SLN |
| +045+ | 1.26 | Pol Perritt | 91.3 | SFN |
| XXXXX | 1.2 | Scott Perry | 153.7 | OAK |
| XXXXX | 1.03 | Frank Miller | 97.7 | PIT |
| XXXXX | 0.99 | Rube Bressler | 119.7 | CIN |
| XXXXX | 0.97 | Eddie Cicotte | 129.3 | CHA |
| XXXXX | 0.91 | George Mogridge | 105 | NYA |
| XXXXX | 0.9 | Wilbur Cooper | 112 | PIT |
| XXXXX | 0.89 | Leon Cadore | 17 | LAN |
_