| Starter | Tm | Tier | Game |
|---|---|---|---|
| Red Faber | CHA | 4 | 191805180_CHA_MIN |
| Hippo Vaughn | CHN | 3.87 | 191805170_PHI_CHN |
| Fred Toney | CIN | 2.15 | 191805160_SFN_CIN |
| Dutch Leonard | BOS | 1.31 | 191805170_DET_BOS |
| Pol Perritt | SFN | 0.91 | 191805170_SFN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Shaw | MIN | -4.42 | 191805170_CHA_MIN |
| Ray Caldwell | NYA | -2.23 | 191805180_BAL_NYA |
| Bert Gallia | BAL | -1.35 | 191805160_BAL_NYA |
| Bill James | DET | -1.26 | 191805160_DET_BOS |
| Jack Coombs | LAN | -0.97 | 191805160_LAN_PIT |
Based on accumulated WAA for this season up to 1918-05-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.5 | Walter Johnson | 82.7 | MIN |
| +002+ | 2.76 | Earl Hamilton | 54 | PIT |
| +003+ | 2.75 | Scott Perry | 77.3 | OAK |
| +004+ | 2.48 | Stan Coveleski | 67.7 | CLE |
| +007+ | 1.89 | Hippo Vaughn | 60 | CHN |
| +008+ | 1.88 | Jeff Tesreau | 44.3 | SFN |
| +009+ | 1.85 | Red Faber | 49.7 | CHA |
| +011+ | 1.66 | Hod Eller | 47 | CIN |
| +012+ | 1.65 | Dana Fillingim | 26 | ATL |
| +013+ | 1.61 | Lefty Tyler | 53 | CHN |
| +017+ | 1.44 | Bullet Joe Bush | 59.3 | BOS |
| +019+ | 1.39 | Bill Sherdel | 33.3 | SLN |
| +020+ | 1.36 | Lefty Williams | 64.3 | CHA |
| +023+ | 1.25 | Red Ames | 34.3 | SLN |
| XXXXX | 1.14 | Slim Love | 59.3 | NYA |
| XXXXX | 1.08 | Fred Toney | 27 | CIN |
| XXXXX | 1.04 | Jesse Barnes | 41.3 | SFN |
| XXXXX | 0.97 | Babe Ruth | 61.7 | BOS |
| XXXXX | 0.93 | Hank Thormahlen | 41 | NYA |
| XXXXX | 0.78 | Johnny Enzmann | 20 | CLE |
| XXXXX | 0.75 | Pete Schneider | 52 | CIN |
| XXXXX | 0.71 | Frank Miller | 45.7 | PIT |
| XXXXX | 0.7 | Brad Hogg | 37.7 | PHI |
| XXXXX | 0.68 | Eric Erickson | 51.3 | DET |
| XXXXX | 0.65 | Rube Benton | 24 | SFN |
_