| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill James | DET | -3.95 | 191807092_DET_OAK |
| Mike Regan | CIN | -1.84 | 191807102_LAN_CIN |
| Jack Coombs | LAN | -1.34 | 191807101_LAN_CIN |
| Happy Finneran | NYA | -1.04 | 191807110_CLE_NYA |
| George Smith | SFN | -0.94 | 191807110_SFN_PIT |
Based on accumulated WAA for this season up to 1918-07-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.46 | Walter Johnson | 203.3 | MIN |
| +002+ | 5.13 | Stan Coveleski | 207.7 | CLE |
| +003+ | 4.68 | Hippo Vaughn | 177.3 | CHN |
| +007+ | 3.59 | Carl Mays | 183.3 | BOS |
| +009+ | 3.09 | Bullet Joe Bush | 175.7 | BOS |
| +011+ | 2.94 | Burleigh Grimes | 143.7 | LAN |
| +014+ | 2.81 | Scott Perry | 206.3 | OAK |
| +015+ | 2.73 | Phil Douglas | 78.3 | CHN |
| +021+ | 2.43 | Al Demaree | 111.7 | SFN |
| +022+ | 2.39 | Red Ames | 123.3 | SLN |
| +024+ | 2.21 | Pol Perritt | 124.3 | SFN |
| +025+ | 2.2 | Rube Marquard | 158 | LAN |
| +034+ | 1.9 | Lefty Tyler | 153.7 | CHN |
| +035+ | 1.86 | Jimmy Ring | 38 | CIN |
| +038+ | 1.76 | Allen Sothoron | 130 | BAL |
| +039+ | 1.74 | Guy Morton | 141.7 | CLE |
| +044+ | 1.61 | Eddie Cicotte | 170.3 | CHA |
| +043+ | 1.61 | Frank Shellenback | 114.3 | CHA |
| +047+ | 1.51 | Dana Fillingim | 113 | ATL |
| +050+ | 1.37 | Harry Harper | 141.3 | MIN |
| +051+ | 1.35 | Roy Sanders | 108.3 | PIT |
| XXXXX | 1.24 | Wilbur Cooper | 152 | PIT |
| XXXXX | 1.17 | Dick Rudolph | 69.3 | ATL |
| XXXXX | 1.09 | Brad Hogg | 130.7 | PHI |
| XXXXX | 1.05 | Paul Carter | 45.7 | CHN |
_