| Starter | Tm | Tier | Game |
|---|---|---|---|
| George McQuillan | PHI | 7.21 | 190809100_PHI_ATL |
| Mordecai Brown | CHN | 4.91 | 190809100_CHN_SLN |
| Ed Walsh | CHA | 3.2 | 190809110_CHA_DET |
| Addie Joss | CLE | 2.73 | 190809110_BAL_CLE |
| Jack Powell | BAL | 1.06 | 190809100_BAL_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Lake | NYA | -7.84 | 190809090_NYA_OAK |
| George Mullin | DET | -3.27 | 190809110_CHA_DET |
| Burt Keeley | MIN | -1.71 | 190809100_BOS_MIN |
| Fred Burchell | BOS | -1.32 | 190809100_BOS_MIN |
| Bob Spade | CIN | -1.17 | 190809100_CIN_PIT |
Based on accumulated WAA for this season up to 1908-09-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.77 | Christy Mathewson | 310.3 | SFN |
| +002+ | 10.4 | George McQuillan | 314.7 | PHI |
| +003+ | 8.86 | Mordecai Brown | 243 | CHN |
| +006+ | 7.95 | Cy Young | 262 | BOS |
| +007+ | 7.48 | Ed Walsh | 369 | CHA |
| +009+ | 7.15 | Hooks Wiltse | 280.3 | SFN |
| +010+ | 7.09 | Addie Joss | 277.3 | CLE |
| +015+ | 4.28 | Vic Willis | 250.7 | PIT |
| +014+ | 4.28 | Harry Howell | 279.7 | BAL |
| +016+ | 3.97 | Jack Powell | 214 | BAL |
| +019+ | 3.56 | Frank Corridon | 151.3 | PHI |
| +020+ | 3.47 | Andy Coakley | 250.3 | TOT |
| +022+ | 3.35 | Nap Rucker | 274.7 | LAN |
| +023+ | 3.3 | Eddie Plank | 207.3 | OAK |
| +033+ | 2.83 | Bob Ewing | 229 | CIN |
| +035+ | 2.81 | Walter Johnson | 182.3 | MIN |
| +038+ | 2.78 | Bill Foxen | 141.7 | PHI |
| +042+ | 2.62 | Tom Hughes | 255.7 | MIN |
| +043+ | 2.55 | Bill Donovan | 183.7 | DET |
| +045+ | 2.46 | Charlie Chech | 142.3 | CLE |
| +046+ | 2.44 | Kaiser Wilhelm | 276.3 | LAN |
| +047+ | 2.44 | Nick Maddox | 205.7 | PIT |
| +051+ | 2.33 | Howie Camnitz | 209.7 | PIT |
| +053+ | 2.25 | Bob Rhoads | 226 | CLE |
| +056+ | 2.21 | Sam Leever | 178.7 | PIT |
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