| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 16.02 | 191807042_NYA_MIN |
| Hippo Vaughn | CHN | 7.57 | 191807060_SFN_CHN |
| Carl Mays | BOS | 3.98 | 191807042_BOS_OAK |
| Stan Coveleski | CLE | 2.93 | 191807041_BAL_CLE |
| Eddie Cicotte | CHA | 2.77 | 191807061_CHA_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill James | DET | -4.02 | 191807042_DET_CHA |
| Jim Shaw | MIN | -2.55 | 191807050_NYA_MIN |
| Jack Coombs | LAN | -2.05 | 191807042_LAN_SFN |
| Jakie May | SLN | -1.58 | 191807050_CHN_SLN |
| Ray Caldwell | NYA | -1.27 | 191807042_NYA_MIN |
Based on accumulated WAA for this season up to 1918-07-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.36 | Walter Johnson | 185.3 | MIN |
| +002+ | 5.44 | Hippo Vaughn | 170 | CHN |
| +004+ | 4.07 | Stan Coveleski | 189.3 | CLE |
| +008+ | 2.99 | Carl Mays | 165.3 | BOS |
| +009+ | 2.94 | Burleigh Grimes | 135.7 | LAN |
| +010+ | 2.88 | Scott Perry | 192.3 | OAK |
| +020+ | 2.4 | Red Ames | 114.3 | SLN |
| +019+ | 2.4 | Dana Fillingim | 105 | ATL |
| +021+ | 2.31 | Rube Marquard | 142 | LAN |
| +022+ | 2.25 | Bullet Joe Bush | 163.7 | BOS |
| +024+ | 2.22 | Al Demaree | 102.7 | SFN |
| +025+ | 2.15 | Pol Perritt | 111.3 | SFN |
| +031+ | 2.1 | Phil Douglas | 55.7 | CHN |
| +034+ | 1.96 | Lefty Tyler | 142 | CHN |
| +035+ | 1.93 | Eddie Cicotte | 160.3 | CHA |
| +042+ | 1.55 | Joe Oeschger | 113 | PHI |
| +044+ | 1.5 | Frank Shellenback | 100.3 | CHA |
| XXXXX | 1.21 | Brad Hogg | 117.7 | PHI |
| XXXXX | 1.13 | Harry Harper | 135 | MIN |
| XXXXX | 1.13 | Roy Sanders | 102.3 | PIT |
| XXXXX | 1.11 | Allen Sothoron | 121 | BAL |
| XXXXX | 1.1 | Guy Morton | 132.7 | CLE |
| XXXXX | 1.07 | Jimmy Ring | 19.7 | CIN |
| XXXXX | 0.98 | Bob Geary | 73 | OAK |
| XXXXX | 0.94 | Hooks Dauss | 139 | DET |
_