| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Lake | NYA | -8.26 | 190809240_NYA_CHA |
| George Mullin | DET | -4.82 | 190809240_OAK_DET |
| Patsy Flaherty | ATL | -1.69 | 190809232_SLN_ATL |
| Bob Spade | CIN | -1.17 | 190809251_CIN_SFN |
| George Bell | LAN | -0.65 | 190809240_PIT_LAN |
Based on accumulated WAA for this season up to 1908-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.19 | Christy Mathewson | 350 | SFN |
| +002+ | 11.03 | George McQuillan | 350.7 | PHI |
| +003+ | 9.88 | Ed Walsh | 414 | CHA |
| +004+ | 9.26 | Cy Young | 288 | BOS |
| +007+ | 8.71 | Mordecai Brown | 277 | CHN |
| +008+ | 8.22 | Addie Joss | 304.3 | CLE |
| +011+ | 5.72 | Hooks Wiltse | 304.3 | SFN |
| +012+ | 5.64 | Vic Willis | 285.7 | PIT |
| +013+ | 5.27 | Jack Powell | 249 | BAL |
| +016+ | 4.05 | Walter Johnson | 220.7 | MIN |
| +018+ | 3.76 | Kaiser Wilhelm | 303.3 | LAN |
| +024+ | 3.48 | Eddie Plank | 219.7 | OAK |
| +027+ | 3.36 | Andy Coakley | 261.7 | TOT |
| +028+ | 3.33 | Harry Howell | 297 | BAL |
| +036+ | 2.98 | Bob Rhoads | 253 | CLE |
| +038+ | 2.94 | Frank Corridon | 189.3 | PHI |
| +040+ | 2.93 | Rube Waddell | 275.7 | BAL |
| +041+ | 2.91 | Heinie Berger | 189.7 | CLE |
| +044+ | 2.82 | Nap Rucker | 307.3 | LAN |
| +047+ | 2.59 | Lefty Leifield | 208.7 | PIT |
| +051+ | 2.53 | Doc White | 279.7 | CHA |
| +053+ | 2.42 | Elmer Steele | 101.7 | BOS |
| +056+ | 2.38 | Ed Summers | 281 | DET |
| +058+ | 2.25 | Orval Overall | 217 | CHN |
| +059+ | 2.18 | Frank Smith | 269.7 | CHA |
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