| Starter | Tm | Tier | Game |
|---|---|---|---|
| George Mullin | DET | 4.27 | 190309232_DET_BOS |
| Willie Sudhoff | BAL | 3.65 | 190309242_BAL_NYA |
| Doc White | CHA | 3.15 | 190309230_CHA_OAK |
| Eddie Plank | OAK | 3 | 190309241_CHA_OAK |
| Bill Dinneen | BOS | 2.82 | 190309231_DET_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Togie Pittinger | ATL | -4.39 | 190309220_ATL_SLN |
| Fred Mitchell | PHI | -3.69 | 190309222_PHI_CIN |
| Henry Schmidt | LAN | -1.93 | 190309220_LAN_PIT |
| Dummy Taylor | SFN | -1.16 | 190309230_SFN_PIT |
| Bob Ewing | CIN | -0.4 | 190309222_PHI_CIN |
Based on accumulated WAA for this season up to 1903-09-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.82 | Cy Young | 332.7 | BOS |
| +002+ | 13.26 | George Mullin | 311.7 | DET |
| +004+ | 11.8 | Doc White | 300 | CHA |
| +005+ | 11.4 | Bill Donovan | 296 | DET |
| +007+ | 11.1 | Eddie Plank | 327 | OAK |
| +008+ | 11.07 | Willie Sudhoff | 285.7 | BAL |
| +009+ | 10.74 | Bill Dinneen | 291 | BOS |
| +010+ | 10.62 | Rube Waddell | 324 | OAK |
| +011+ | 8.41 | Frank Kitson | 249.7 | DET |
| +012+ | 8 | Ed Siever | 245 | BAL |
| +013+ | 7.98 | Jack Chesbro | 324.3 | NYA |
| +015+ | 7.81 | Jack Powell | 298.3 | BAL |
| +016+ | 7.76 | Roy Patterson | 283 | CHA |
| +019+ | 7.44 | Red Donahue | 258 | TOT |
| +023+ | 6.49 | Tom Hughes | 233.7 | BOS |
| +025+ | 5.81 | Chief Bender | 261 | OAK |
| +026+ | 5.59 | Clark Griffith | 213 | NYA |
| +043+ | 3.84 | Christy Mathewson | 367 | SFN |
| +047+ | 3.69 | Barney Wolfe | 142.3 | NYA |
| +048+ | 3.63 | Joe McGinnity | 424 | SFN |
| +053+ | 3.11 | Jesse Tannehill | 239.3 | NYA |
| +054+ | 2.89 | Norwood Gibson | 174.3 | BOS |
| +055+ | 2.75 | Watty Lee | 156.7 | MIN |
| +057+ | 2.69 | Rube Kisinger | 118.7 | DET |
| +062+ | 2.33 | George Winter | 170.3 | BOS |
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