| Starter | Tm | Tier | Game |
|---|---|---|---|
| Christy Mathewson | SFN | 5.27 | 190909252_SFN_CIN |
| Cy Morgan | OAK | 3.13 | 190909252_CLE_OAK |
| Ed Walsh | CHA | 2.96 | 190909231_CHA_NYA |
| Howie Camnitz | PIT | 2.49 | 190909250_PHI_PIT |
| George Mullin | DET | 1.89 | 190909252_DET_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Beebe | SLN | -4.15 | 190909250_LAN_SLN |
| Al Mattern | ATL | -3.34 | 190909250_ATL_CHN |
| Bob Groom | MIN | -2.04 | 190909230_DET_MIN |
| Ed Kusel? | BAL | -1.39 | 190909230_BAL_OAK |
| Rube Manning | NYA | -1.12 | 190909251_DET_NYA |
Based on accumulated WAA for this season up to 1909-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10.8 | Mordecai Brown | 333.7 | CHN |
| +004+ | 9.04 | Christy Mathewson | 265 | SFN |
| +005+ | 8.57 | Orval Overall | 266.7 | CHN |
| +006+ | 7.87 | Harry Krause | 205 | OAK |
| +007+ | 7.66 | Cy Morgan | 284 | TOT |
| +009+ | 7.02 | Howie Camnitz | 283 | PIT |
| +010+ | 6.94 | Vic Willis | 282 | PIT |
| +011+ | 6.83 | Frank Smith | 363.7 | CHA |
| +012+ | 6.76 | Ed Walsh | 220 | CHA |
| +015+ | 5.87 | Chief Bender | 231.7 | OAK |
| +017+ | 5.79 | Eddie Plank | 253.7 | OAK |
| +019+ | 5.51 | George Mullin | 300.7 | DET |
| +020+ | 5.26 | Addie Joss | 240.7 | CLE |
| +021+ | 5.25 | Ed Reulbach | 241 | CHN |
| +023+ | 5.11 | Art Fromme | 263.3 | CIN |
| +026+ | 4.71 | Nap Rucker | 293 | LAN |
| +028+ | 4.58 | Babe Adams | 117 | PIT |
| +031+ | 4.4 | Earl Moore | 284 | PHI |
| +036+ | 3.82 | Doc White | 175 | CHA |
| +037+ | 3.81 | Jack Coombs | 194 | OAK |
| +039+ | 3.73 | Ed Killian | 157.3 | DET |
| +041+ | 3.68 | Rube Kroh | 111.3 | CHN |
| +042+ | 3.66 | Smoky Joe Wood | 156.7 | BOS |
| +043+ | 3.28 | Ed Summers | 280.7 | DET |
| +047+ | 2.78 | Hooks Wiltse | 249.3 | SFN |
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