| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mordecai Brown | CHN | 5.74 | 190809040_CHN_PIT |
| Ed Walsh | CHA | 3.71 | 190809020_CHA_BAL |
| Cy Young | BOS | 3.47 | 190809041_OAK_BOS |
| Hooks Wiltse | SFN | 2.63 | 190809040_SFN_PHI |
| Jack Powell | BAL | 1.2 | 190809040_DET_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Lake | NYA | -7.37 | 190809020_OAK_NYA |
| George Mullin | DET | -4.05 | 190809030_CLE_DET |
| Gus Dorner | ATL | -3.47 | 190809032_SFN_ATL |
| Fred Burchell | BOS | -1.92 | 190809030_BOS_MIN |
| Ed Karger | SLN | -1.46 | 190809020_SLN_CHN |
Based on accumulated WAA for this season up to 1908-09-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.83 | George McQuillan | 302.3 | PHI |
| +002+ | 9.38 | Christy Mathewson | 290.3 | SFN |
| +003+ | 8.86 | Mordecai Brown | 233 | CHN |
| +005+ | 7.4 | Cy Young | 253 | BOS |
| +007+ | 7.17 | Ed Walsh | 343 | CHA |
| +009+ | 6.54 | Addie Joss | 255.3 | CLE |
| +010+ | 6.42 | Hooks Wiltse | 271.3 | SFN |
| +012+ | 4.52 | Jack Powell | 198 | BAL |
| +015+ | 3.72 | Vic Willis | 233.7 | PIT |
| +017+ | 3.39 | Eddie Plank | 193.3 | OAK |
| +020+ | 3.26 | Tom Hughes | 237.7 | MIN |
| +022+ | 3.13 | Bill Foxen | 128 | PHI |
| +027+ | 2.99 | Bill Donovan | 164.7 | DET |
| +031+ | 2.89 | Frank Corridon | 140.7 | PHI |
| +033+ | 2.83 | Bob Rhoads | 216 | CLE |
| +034+ | 2.8 | Sam Leever | 170.7 | PIT |
| +035+ | 2.74 | Bob Ewing | 229 | CIN |
| +042+ | 2.44 | Bugs Raymond | 259.3 | SLN |
| +044+ | 2.24 | Charlie Chech | 133.3 | CLE |
| +052+ | 2.02 | Nap Rucker | 253.3 | LAN |
| +053+ | 2.01 | Doc White | 244.3 | CHA |
| +056+ | 1.86 | Elmer Steele | 65.3 | BOS |
| +059+ | 1.8 | Rube Waddell | 219.7 | BAL |
| +060+ | 1.74 | Tom Tuckey | 54 | ATL |
| +063+ | 1.61 | Jack Pfiester | 215.3 | CHN |
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