| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Walsh | CHA | 14.9 | 190806230_CHA_DET |
| Mordecai Brown | CHN | 6.79 | 190806250_CIN_CHN |
| Addie Joss | CLE | 1.65 | 190806240_CHA_CLE |
| Lefty Leifield | PIT | 1.62 | 190806232_CIN_PIT |
| Cy Young | BOS | 1.35 | 190806250_MIN_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Lake | NYA | -5.54 | 190806252_NYA_OAK |
| George Mullin | DET | -3.24 | 190806240_BAL_DET |
| George Winter | BOS | -2.47 | 190806240_MIN_BOS |
| Charlie Smith | MIN | -1.83 | 190806240_MIN_BOS |
| Art Fromme | SLN | -1.71 | 190806240_SLN_CHN |
Based on accumulated WAA for this season up to 1908-06-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.8 | George McQuillan | 156.7 | PHI |
| +002+ | 5.78 | Ed Walsh | 147 | CHA |
| +004+ | 4.72 | Addie Joss | 146 | CLE |
| +005+ | 4.59 | Cy Young | 139 | BOS |
| +008+ | 3.58 | Mordecai Brown | 94.7 | CHN |
| +009+ | 3.47 | Jack Powell | 100.7 | BAL |
| +010+ | 3.38 | Tom Hughes | 112.7 | MIN |
| +011+ | 3.14 | Bugs Raymond | 127.7 | SLN |
| +012+ | 3.03 | Bob Ewing | 119 | CIN |
| +013+ | 2.9 | Hooks Wiltse | 123 | SFN |
| +015+ | 2.81 | Christy Mathewson | 137.3 | SFN |
| +017+ | 2.39 | Kaiser Wilhelm | 133.7 | LAN |
| +019+ | 2.09 | Eddie Plank | 81.3 | OAK |
| +021+ | 1.91 | Frank Corridon | 36 | PHI |
| +022+ | 1.91 | Nap Rucker | 122.7 | LAN |
| +026+ | 1.63 | Billy Campbell | 117.3 | CIN |
| +027+ | 1.61 | Bill Donovan | 50.7 | DET |
| +028+ | 1.58 | Sam Leever | 99.7 | PIT |
| +029+ | 1.57 | Heinie Berger | 75 | CLE |
| +032+ | 1.37 | Howie Camnitz | 130.7 | PIT |
| +036+ | 1.29 | Lefty Leifield | 67.7 | PIT |
| XXXXX | 1.24 | Doc White | 109.7 | CHA |
| XXXXX | 1.19 | Ed Willett | 58.3 | DET |
| XXXXX | 1.11 | Jack Pfiester | 92.7 | CHN |
| XXXXX | 1.07 | Bill Foxen | 20.7 | PHI |
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