| Starter | Tm | Tier | Game |
|---|---|---|---|
| Burt Keeley | MIN | -2.79 | 190808200_BAL_MIN |
| George Mullin | DET | -2.38 | 190808190_DET_NYA |
| Jack Chesbro | NYA | -1.93 | 190808190_DET_NYA |
| Carl Lundgren | CHN | -1.22 | 190808180_PHI_CHN |
| Bob Spade | CIN | -0.57 | 190808190_SFN_CIN |
Based on accumulated WAA for this season up to 1908-08-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.61 | George McQuillan | 275.3 | PHI |
| +002+ | 8.21 | Christy Mathewson | 263.7 | SFN |
| +004+ | 7.5 | Mordecai Brown | 196.7 | CHN |
| +005+ | 7.33 | Cy Young | 219 | BOS |
| +007+ | 6.43 | Ed Walsh | 304.7 | CHA |
| +009+ | 5.67 | Addie Joss | 238.3 | CLE |
| +010+ | 5.42 | Hooks Wiltse | 236.3 | SFN |
| +011+ | 4.92 | Jack Powell | 173 | BAL |
| +012+ | 4.47 | Kaiser Wilhelm | 235.3 | LAN |
| +013+ | 4.37 | Andy Coakley | 228.7 | CIN |
| +015+ | 4.04 | Harry Howell | 234.3 | BAL |
| +016+ | 3.96 | Ed Willett | 157.3 | DET |
| +017+ | 3.81 | Bob Ewing | 195.7 | CIN |
| +020+ | 3.31 | Bugs Raymond | 232 | SLN |
| +021+ | 3.17 | Vic Willis | 204.7 | PIT |
| +022+ | 3.13 | Bill Foxen | 108 | PHI |
| +023+ | 3.06 | Bob Rhoads | 197 | CLE |
| +029+ | 2.77 | Rube Vickers | 260 | OAK |
| +033+ | 2.54 | Eddie Plank | 173.3 | OAK |
| +034+ | 2.44 | Bill Donovan | 138.7 | DET |
| +036+ | 2.36 | Nap Rucker | 217.3 | LAN |
| +039+ | 2.25 | Lefty Leifield | 137.3 | PIT |
| +046+ | 1.9 | Tom Hughes | 202.7 | MIN |
| +049+ | 1.81 | Sam Leever | 150.3 | PIT |
| +053+ | 1.78 | Elmer Steele | 43 | BOS |
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