| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hippo Vaughn | CHN | 4.67 | 191805210_LAN_CHN |
| Fred Toney | CIN | 2.69 | 191805200_ATL_CIN |
| Carl Mays | BOS | 1.62 | 191805200_CLE_BOS |
| Stan Coveleski | CLE | 1.51 | 191805190_CLE_MIN |
| Wilbur Cooper | PIT | 1.42 | 191805200_PHI_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Elmer Myers | OAK | -4.88 | 191805200_DET_OAK |
| Jim Shaw | MIN | -3.48 | 191805210_BAL_MIN |
| Jack Coombs | LAN | -1.25 | 191805210_LAN_CHN |
| Bert Gallia | BAL | -1.13 | 191805210_BAL_MIN |
| Gene Packard | SLN | -0.63 | 191805190_ATL_SLN |
Based on accumulated WAA for this season up to 1918-05-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.41 | Walter Johnson | 82.7 | MIN |
| +002+ | 2.97 | Stan Coveleski | 79.3 | CLE |
| +003+ | 2.71 | Earl Hamilton | 54 | PIT |
| +004+ | 2.59 | Scott Perry | 77.3 | OAK |
| +005+ | 2.24 | Hippo Vaughn | 69 | CHN |
| +006+ | 2.18 | Lefty Tyler | 62 | CHN |
| +009+ | 2.02 | Hod Eller | 56 | CIN |
| +010+ | 1.97 | Bill Sherdel | 42.3 | SLN |
| +011+ | 1.92 | Jeff Tesreau | 45.3 | SFN |
| +012+ | 1.81 | Red Faber | 49.7 | CHA |
| +013+ | 1.71 | Jesse Barnes | 54.3 | SFN |
| +016+ | 1.63 | Dana Fillingim | 26 | ATL |
| +019+ | 1.48 | Lefty Williams | 73.3 | CHA |
| +021+ | 1.41 | Red Ames | 43.3 | SLN |
| +022+ | 1.38 | Bullet Joe Bush | 59.3 | BOS |
| +026+ | 1.26 | Fred Toney | 36 | CIN |
| XXXXX | 0.91 | Babe Ruth | 61.7 | BOS |
| XXXXX | 0.89 | Hank Thormahlen | 41 | NYA |
| XXXXX | 0.79 | Slim Love | 64.3 | NYA |
| XXXXX | 0.69 | Pete Schneider | 52 | CIN |
| XXXXX | 0.66 | Frank Miller | 45.7 | PIT |
| XXXXX | 0.63 | Rube Benton | 24 | SFN |
| XXXXX | 0.61 | Brad Hogg | 45.7 | PHI |
| XXXXX | 0.61 | Bunny Hearn | 56 | ATL |
| XXXXX | 0.6 | Earl Yingling | 29 | MIN |
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