| Starter | Tm | Tier | Game |
|---|---|---|---|
| George McQuillan | PHI | 8.55 | 190809050_SFN_PHI |
| Christy Mathewson | SFN | 6.31 | 190809050_SFN_PHI |
| Mordecai Brown | CHN | 5.74 | 190809040_CHN_PIT |
| Ed Walsh | CHA | 3.82 | 190809050_CLE_CHA |
| Cy Young | BOS | 3.47 | 190809041_OAK_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| George Mullin | DET | -4.05 | 190809030_CLE_DET |
| Gus Dorner | ATL | -3.47 | 190809032_SFN_ATL |
| Bill Hogg | NYA | -2.02 | 190809030_OAK_NYA |
| Fred Burchell | BOS | -1.92 | 190809030_BOS_MIN |
| Bob Spade | CIN | -0.94 | 190809050_SLN_CIN |
Based on accumulated WAA for this season up to 1908-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.26 | George McQuillan | 308.3 | PHI |
| +002+ | 9.88 | Christy Mathewson | 299.3 | SFN |
| +003+ | 8.86 | Mordecai Brown | 233 | CHN |
| +005+ | 7.88 | Ed Walsh | 352 | CHA |
| +006+ | 7.4 | Cy Young | 253 | BOS |
| +009+ | 6.42 | Hooks Wiltse | 271.3 | SFN |
| +010+ | 6.04 | Addie Joss | 259.3 | CLE |
| +012+ | 4.51 | Jack Powell | 198 | BAL |
| +014+ | 4.38 | Harry Howell | 269 | BAL |
| +016+ | 3.72 | Vic Willis | 233.7 | PIT |
| +017+ | 3.4 | Eddie Plank | 193.3 | OAK |
| +018+ | 3.38 | Bill Foxen | 131 | PHI |
| +021+ | 3.27 | Tom Hughes | 237.7 | MIN |
| +026+ | 3.02 | Kaiser Wilhelm | 268.3 | LAN |
| +027+ | 2.98 | Bill Donovan | 164.7 | DET |
| +032+ | 2.89 | Frank Corridon | 140.7 | PHI |
| +034+ | 2.85 | Bob Rhoads | 216 | CLE |
| +035+ | 2.75 | Nap Rucker | 262.3 | LAN |
| +036+ | 2.74 | Bob Ewing | 229 | CIN |
| +037+ | 2.69 | Sam Leever | 174.7 | PIT |
| +042+ | 2.46 | Bugs Raymond | 259.3 | SLN |
| +047+ | 2.26 | Charlie Chech | 133.3 | CLE |
| +055+ | 2.02 | Doc White | 244.3 | CHA |
| +057+ | 1.95 | Elmer Steele | 74.3 | BOS |
| +059+ | 1.79 | Rube Waddell | 219.7 | BAL |
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