| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hippo Vaughn | CHN | 5.41 | 191809010_PIT_CHN |
| Burleigh Grimes | LAN | 2.25 | 191808311_LAN_SFN |
| Bullet Joe Bush | BOS | 1.91 | 191808312_OAK_BOS |
| Wilbur Cooper | PIT | 1.85 | 191809022_CHN_PIT |
| Red Ames | SLN | 1.2 | 191809012_SLN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rudy Kallio | DET | -1.96 | 191808310_DET_BAL |
| Gene Packard | SLN | -1.94 | 191809021_SLN_CIN |
| Dolf Luque | CIN | -1.08 | 191809022_SLN_CIN |
| Slim Love | NYA | -0.97 | 191809021_BOS_NYA |
| George Smith | LAN | -0.91 | 191808312_LAN_SFN |
Based on accumulated WAA for this season up to 1918-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.24 | Walter Johnson | 326 | MIN |
| +003+ | 6.68 | Stan Coveleski | 310.3 | CLE |
| +004+ | 6.6 | Hippo Vaughn | 290.3 | CHN |
| +005+ | 6.23 | Scott Perry | 331.7 | OAK |
| +009+ | 4.23 | Burleigh Grimes | 270 | LAN |
| +010+ | 4.2 | Carl Mays | 293.3 | BOS |
| +012+ | 4.1 | Bullet Joe Bush | 272.7 | BOS |
| +013+ | 4.03 | Wilbur Cooper | 273 | PIT |
| +028+ | 2.69 | George Mogridge | 238.7 | NYA |
| +032+ | 2.46 | Sad Sam Jones | 184 | BOS |
| +035+ | 2.39 | Babe Ruth | 167 | BOS |
| +036+ | 2.38 | Hod Eller | 219 | CIN |
| +043+ | 2.29 | Harry Harper | 244 | MIN |
| +050+ | 1.98 | Red Ames | 207 | SLN |
| +052+ | 1.94 | Fred Toney | 222 | TOT |
| +057+ | 1.76 | Oscar Tuero | 44.3 | SLN |
| +059+ | 1.63 | Phil Douglas | 155.3 | CHN |
| +068+ | 1.53 | Carmen Hill | 43.7 | PIT |
| +069+ | 1.51 | Frank Miller | 171.3 | PIT |
| +074+ | 1.4 | Bill Doak | 211 | SLN |
| +080+ | 1.27 | Johnny Enzmann | 137.7 | CLE |
| XXXXX | 1.23 | Dick Rudolph | 154.7 | ATL |
| XXXXX | 1.1 | Al Demaree | 142 | SFN |
| XXXXX | 1.08 | Speed Martin | 53.7 | CHN |
| XXXXX | 0.98 | Brad Hogg | 227.7 | PHI |
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