| Starter | Tm | Tier | Game |
|---|---|---|---|
| Walter Johnson | MIN | 13.95 | 191808300_NYA_MIN |
| Stan Coveleski | CLE | 5.08 | 191808301_CLE_DET |
| Scott Perry | OAK | 4.79 | 191808302_OAK_BOS |
| Burleigh Grimes | LAN | 2.25 | 191808311_LAN_SFN |
| Bullet Joe Bush | BOS | 1.91 | 191808312_OAK_BOS |
| 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 |
| Gary Fortune | PHI | -1.74 | 191808302_ATL_PHI |
| Dolf Luque | CIN | -0.93 | 191808310_CIN_CHN |
Based on accumulated WAA for this season up to 1918-08-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.07 | Walter Johnson | 325 | MIN |
| +002+ | 6.6 | Stan Coveleski | 310.3 | CLE |
| +005+ | 6.12 | Scott Perry | 331.7 | OAK |
| +009+ | 4.14 | Burleigh Grimes | 270 | LAN |
| +010+ | 4.12 | Carl Mays | 293.3 | BOS |
| +012+ | 4.03 | Bullet Joe Bush | 272.7 | BOS |
| +011+ | 4.03 | Lefty Tyler | 264.3 | CHN |
| +018+ | 3.57 | Wilbur Cooper | 264 | PIT |
| +021+ | 3.26 | Red Ames | 199 | SLN |
| +028+ | 2.82 | George Mogridge | 228.7 | NYA |
| +030+ | 2.71 | Harry Harper | 238.3 | MIN |
| +041+ | 2.34 | Babe Ruth | 167 | BOS |
| +044+ | 2.24 | Sad Sam Jones | 175 | BOS |
| +047+ | 2.16 | Hod Eller | 210 | CIN |
| +053+ | 1.88 | Fred Toney | 222 | TOT |
| +057+ | 1.72 | Frank Miller | 162.3 | PIT |
| +063+ | 1.58 | Phil Douglas | 155.3 | CHN |
| +073+ | 1.33 | Jake Northrop | 40 | ATL |
| +075+ | 1.29 | Bill Doak | 211 | SLN |
| +077+ | 1.28 | Carmen Hill | 36.7 | PIT |
| XXXXX | 1.24 | Johnny Enzmann | 137.7 | CLE |
| XXXXX | 1.13 | Speed Martin | 44.7 | CHN |
| XXXXX | 1.05 | Al Demaree | 142 | SFN |
| XXXXX | 1.01 | Art Nehf | 275 | ATL |
| XXXXX | 0.92 | Brad Hogg | 227.7 | PHI |
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