| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hippo Vaughn | CHN | 6.15 | 191808281_CIN_CHN |
| Burleigh Grimes | LAN | 2.74 | 191808280_SFN_LAN |
| Bullet Joe Bush | BOS | 1.99 | 191808270_DET_BOS |
| Wilbur Cooper | PIT | 1.53 | 191808291_SLN_PIT |
| Harry Harper | MIN | 1.05 | 191808290_NYA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Happy Finneran | NYA | -3.6 | 191808272_BAL_NYA |
| Rudy Kallio | DET | -2.8 | 191808270_DET_BOS |
| Milt Watson | PHI | -1.18 | 191808272_PHI_PIT |
| Dave Davenport | BAL | -1.16 | 191808280_BAL_NYA |
| Mule Watson | OAK | -0.95 | 191808280_CLE_OAK |
Based on accumulated WAA for this season up to 1918-08-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.59 | Walter Johnson | 316 | MIN |
| +003+ | 6.33 | Hippo Vaughn | 286.3 | CHN |
| +004+ | 6.13 | Scott Perry | 324.7 | OAK |
| +005+ | 6.11 | Stan Coveleski | 301.3 | CLE |
| +008+ | 4.37 | Burleigh Grimes | 263 | LAN |
| +010+ | 4.1 | Lefty Tyler | 264.3 | CHN |
| +013+ | 3.72 | Bullet Joe Bush | 266.7 | BOS |
| +015+ | 3.65 | Wilbur Cooper | 264 | PIT |
| +021+ | 3.32 | Red Ames | 199 | SLN |
| +022+ | 3.24 | Carl Mays | 275.3 | BOS |
| +026+ | 2.85 | George Mogridge | 228.7 | NYA |
| +029+ | 2.76 | Harry Harper | 238.3 | MIN |
| +038+ | 2.3 | Sad Sam Jones | 175 | BOS |
| +043+ | 2.22 | Hod Eller | 210 | CIN |
| +049+ | 2.02 | Babe Ruth | 158 | BOS |
| +055+ | 1.77 | Frank Miller | 162.3 | PIT |
| +063+ | 1.57 | Fred Toney | 213 | TOT |
| +069+ | 1.35 | Bill Doak | 211 | SLN |
| +070+ | 1.34 | Jake Northrop | 40 | ATL |
| +075+ | 1.29 | Carmen Hill | 36.7 | PIT |
| XXXXX | 1.14 | Speed Martin | 44.7 | CHN |
| XXXXX | 1.1 | Al Demaree | 142 | SFN |
| XXXXX | 0.91 | Johnny Enzmann | 128.7 | CLE |
| XXXXX | 0.87 | Ed Hovlik | 28 | MIN |
| XXXXX | 0.86 | Bernie Boland | 195 | DET |
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