| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 13.95 | 191808300_NYA_MIN |
| Hippo Vaughn | CHN | 6.15 | 191808281_CIN_CHN |
| Stan Coveleski | CLE | 5.08 | 191808301_CLE_DET |
| Scott Perry | OAK | 4.79 | 191808302_OAK_BOS |
| Burleigh Grimes | LAN | 2.74 | 191808280_SFN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Coombs | LAN | -3.94 | 191808300_LAN_SFN |
| Happy Finneran | NYA | -3.61 | 191808300_NYA_MIN |
| Gary Fortune | PHI | -1.74 | 191808302_ATL_PHI |
| 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 1918-08-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.09 | Walter Johnson | 325 | MIN |
| +002+ | 6.62 | Stan Coveleski | 310.3 | CLE |
| +003+ | 6.28 | Hippo Vaughn | 286.3 | CHN |
| +005+ | 6.13 | Scott Perry | 331.7 | OAK |
| +008+ | 4.33 | Burleigh Grimes | 263 | LAN |
| +010+ | 4.15 | Carl Mays | 293.3 | BOS |
| +011+ | 4.05 | Lefty Tyler | 264.3 | CHN |
| +015+ | 3.66 | Bullet Joe Bush | 266.7 | BOS |
| +018+ | 3.6 | Wilbur Cooper | 264 | PIT |
| +020+ | 3.28 | Red Ames | 199 | SLN |
| +029+ | 2.82 | George Mogridge | 228.7 | NYA |
| +030+ | 2.72 | Harry Harper | 238.3 | MIN |
| +042+ | 2.26 | Sad Sam Jones | 175 | BOS |
| +044+ | 2.18 | Hod Eller | 210 | CIN |
| +050+ | 1.98 | Babe Ruth | 158 | BOS |
| +055+ | 1.74 | Frank Miller | 162.3 | PIT |
| +063+ | 1.52 | Fred Toney | 213 | TOT |
| +072+ | 1.34 | Jake Northrop | 40 | ATL |
| +073+ | 1.31 | Bill Doak | 211 | SLN |
| +075+ | 1.29 | Carmen Hill | 36.7 | PIT |
| XXXXX | 1.13 | Speed Martin | 44.7 | CHN |
| XXXXX | 1.07 | Al Demaree | 142 | SFN |
| XXXXX | 0.88 | Johnny Enzmann | 128.7 | CLE |
| XXXXX | 0.86 | Ed Hovlik | 28 | MIN |
| XXXXX | 0.82 | Bernie Boland | 195 | DET |
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