| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 13.95 | 191808300_NYA_MIN |
| Hippo Vaughn | CHN | 5.41 | 191809010_PIT_CHN |
| Stan Coveleski | CLE | 5.08 | 191808301_CLE_DET |
| Scott Perry | OAK | 4.79 | 191808302_OAK_BOS |
| Burleigh Grimes | LAN | 2.25 | 191808311_LAN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Coombs | LAN | -3.94 | 191808300_LAN_SFN |
| Happy Finneran | NYA | -3.61 | 191808300_NYA_MIN |
| Rudy Kallio | DET | -1.96 | 191808310_DET_BAL |
| Lee Meadows | SLN | -1.89 | 191809011_SLN_CIN |
| Gary Fortune | PHI | -1.74 | 191808302_ATL_PHI |
Based on accumulated WAA for this season up to 1918-09-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.12 | Walter Johnson | 325 | MIN |
| +002+ | 6.64 | Stan Coveleski | 310.3 | CLE |
| +004+ | 6.55 | Hippo Vaughn | 290.3 | CHN |
| +005+ | 6.16 | Scott Perry | 331.7 | OAK |
| +008+ | 4.39 | Lefty Tyler | 269.3 | CHN |
| +009+ | 4.18 | Burleigh Grimes | 270 | LAN |
| +011+ | 4.16 | Carl Mays | 293.3 | BOS |
| +012+ | 4.06 | Bullet Joe Bush | 272.7 | BOS |
| +016+ | 3.62 | Wilbur Cooper | 264 | PIT |
| +028+ | 2.75 | Harry Harper | 238.3 | MIN |
| +029+ | 2.72 | George Mogridge | 229.7 | NYA |
| +037+ | 2.37 | Babe Ruth | 167 | BOS |
| +040+ | 2.35 | Hod Eller | 219 | CIN |
| +042+ | 2.26 | Sad Sam Jones | 175 | BOS |
| +049+ | 1.93 | Red Ames | 207 | SLN |
| +052+ | 1.9 | Fred Toney | 222 | TOT |
| +058+ | 1.75 | Frank Miller | 162.3 | PIT |
| +063+ | 1.61 | Phil Douglas | 155.3 | CHN |
| +066+ | 1.53 | Carmen Hill | 43.7 | PIT |
| +074+ | 1.34 | Bill Doak | 211 | SLN |
| +080+ | 1.25 | Johnny Enzmann | 137.7 | CLE |
| XXXXX | 1.07 | Al Demaree | 142 | SFN |
| XXXXX | 1.04 | Art Nehf | 275 | ATL |
| XXXXX | 0.95 | Brad Hogg | 227.7 | PHI |
| XXXXX | 0.86 | Bernie Boland | 195 | DET |
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