| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hippo Vaughn | CHN | 8.7 | 191807090_SFN_CHN |
| Carl Mays | BOS | 3.89 | 191807082_CLE_BOS |
| Stan Coveleski | CLE | 2.93 | 191807081_CLE_BOS |
| Pol Perritt | SFN | 1 | 191807082_SFN_CHN |
| Wilbur Cooper | PIT | 0.94 | 191807090_ATL_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill James | DET | -3.95 | 191807092_DET_OAK |
| Mike Regan | CIN | -1.84 | 191807102_LAN_CIN |
| Jack Coombs | LAN | -1.34 | 191807101_LAN_CIN |
| Allen Russell | NYA | -1.05 | 191807080_CHA_NYA |
| Vean Gregg | OAK | -0.54 | 191807091_DET_OAK |
Based on accumulated WAA for this season up to 1918-07-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.36 | Walter Johnson | 194.3 | MIN |
| +002+ | 4.69 | Hippo Vaughn | 177.3 | CHN |
| +003+ | 4.55 | Stan Coveleski | 198.7 | CLE |
| +008+ | 3.09 | Bullet Joe Bush | 175.7 | BOS |
| +009+ | 3 | Carl Mays | 174.3 | BOS |
| +011+ | 2.92 | Burleigh Grimes | 143.7 | LAN |
| +014+ | 2.8 | Scott Perry | 206.3 | OAK |
| +020+ | 2.44 | Phil Douglas | 67.3 | CHN |
| +021+ | 2.43 | Al Demaree | 111.7 | SFN |
| +022+ | 2.38 | Red Ames | 123.3 | SLN |
| +023+ | 2.29 | Rube Marquard | 150 | LAN |
| +025+ | 2.2 | Pol Perritt | 124.3 | SFN |
| +033+ | 1.95 | Lefty Tyler | 151 | CHN |
| +035+ | 1.86 | Jimmy Ring | 38 | CIN |
| +037+ | 1.74 | Allen Sothoron | 130 | BAL |
| +038+ | 1.73 | Guy Morton | 141.7 | CLE |
| +040+ | 1.6 | Frank Shellenback | 114.3 | CHA |
| +048+ | 1.5 | Eddie Cicotte | 162.3 | CHA |
| +047+ | 1.5 | Dana Fillingim | 113 | ATL |
| +050+ | 1.36 | Harry Harper | 141.3 | MIN |
| +052+ | 1.35 | Roy Sanders | 108.3 | PIT |
| XXXXX | 1.24 | Wilbur Cooper | 152 | PIT |
| XXXXX | 1.17 | Dick Rudolph | 69.3 | ATL |
| XXXXX | 1.08 | Brad Hogg | 130.7 | PHI |
| XXXXX | 1.05 | Paul Carter | 45.7 | CHN |
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