| Starter | Tm | Tier | Game |
|---|---|---|---|
| Christy Mathewson | SFN | 9.61 | 190809291_PHI_SFN |
| George McQuillan | PHI | 7.34 | 190809291_PHI_SFN |
| Ed Walsh | CHA | 6.37 | 190809291_BOS_CHA |
| Cy Young | BOS | 4.74 | 190809280_BOS_CHA |
| Mordecai Brown | CHN | 4.36 | 190809290_CHN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Lake | NYA | -7.31 | 190809291_NYA_BAL |
| George Mullin | DET | -5.37 | 190809270_OAK_DET |
| Patsy Flaherty | ATL | -1.42 | 190809280_LAN_ATL |
| Fred Burchell | BOS | -1.17 | 190809291_BOS_CHA |
| George Bell | LAN | -0.95 | 190809290_LAN_ATL |
Based on accumulated WAA for this season up to 1908-09-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.74 | Christy Mathewson | 368 | SFN |
| +002+ | 11.49 | Ed Walsh | 441 | CHA |
| +003+ | 10.4 | George McQuillan | 358.7 | PHI |
| +005+ | 9.48 | Cy Young | 298 | BOS |
| +007+ | 8.97 | Mordecai Brown | 286 | CHN |
| +008+ | 7.67 | Addie Joss | 308.3 | CLE |
| +011+ | 6.19 | Vic Willis | 295.7 | PIT |
| +012+ | 5.29 | Jack Powell | 249 | BAL |
| +013+ | 5.07 | Hooks Wiltse | 312.3 | SFN |
| +015+ | 4.54 | Ed Reulbach | 283 | CHN |
| +019+ | 4.06 | Harry Howell | 306 | BAL |
| +025+ | 3.67 | Bob Rhoads | 262 | CLE |
| +026+ | 3.51 | Eddie Plank | 227.7 | OAK |
| +030+ | 3.43 | Kaiser Wilhelm | 312.3 | LAN |
| +031+ | 3.42 | Andy Coakley | 261.7 | TOT |
| +034+ | 3.24 | Rube Waddell | 284.7 | BAL |
| +039+ | 3.02 | Walter Johnson | 228.3 | MIN |
| +042+ | 2.86 | Nap Rucker | 315.7 | LAN |
| +044+ | 2.76 | Heinie Berger | 198.7 | CLE |
| +046+ | 2.66 | Frank Smith | 280.7 | CHA |
| +048+ | 2.62 | Doc White | 285.7 | CHA |
| +051+ | 2.58 | Lefty Leifield | 208.7 | PIT |
| +050+ | 2.58 | Elmer Steele | 109.7 | BOS |
| +054+ | 2.44 | Ed Summers | 290 | DET |
| +056+ | 2.25 | Orval Overall | 217 | CHN |
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