| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 4.92 | 190309100_MIN_BOS |
| Bill Donovan | DET | 3.99 | 190309121_DET_CLE |
| Doc White | CHA | 3.56 | 190309110_CHA_BAL |
| Willie Sudhoff | BAL | 3.31 | 190309120_CHA_BAL |
| Eddie Plank | OAK | 2.14 | 190309110_OAK_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -4.62 | 190309110_PHI_PIT |
| Henry Schmidt | LAN | -2.63 | 190309110_LAN_CHN |
| Dummy Taylor | SFN | -1.78 | 190309102_SFN_PHI |
| Clarence Currie | CHN | -1.55 | 190309110_LAN_CHN |
| Ed Poole | CIN | -1.42 | 190309120_ATL_CIN |
Based on accumulated WAA for this season up to 1903-09-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.89 | Cy Young | 314.7 | BOS |
| +002+ | 12.04 | Bill Donovan | 271 | DET |
| +004+ | 11.58 | George Mullin | 291.7 | DET |
| +005+ | 11.02 | Willie Sudhoff | 265.7 | BAL |
| +006+ | 10.55 | Doc White | 273.7 | CHA |
| +008+ | 10.16 | Bill Dinneen | 264 | BOS |
| +009+ | 9.96 | Rube Waddell | 324 | OAK |
| +010+ | 8.71 | Eddie Plank | 290.7 | OAK |
| +012+ | 7.4 | Tom Hughes | 222.7 | BOS |
| +013+ | 7.35 | Frank Kitson | 232.7 | DET |
| +015+ | 6.95 | Red Donahue | 235 | TOT |
| +017+ | 6.41 | Roy Patterson | 252.7 | CHA |
| +020+ | 6.36 | Ed Siever | 218 | BAL |
| +022+ | 6 | Jack Powell | 268.3 | BAL |
| +023+ | 5.6 | Jack Chesbro | 297.3 | NYA |
| +024+ | 5.5 | Chief Bender | 249.3 | OAK |
| +025+ | 5.43 | Clark Griffith | 204 | NYA |
| +028+ | 4.89 | Sam Leever | 267 | PIT |
| +039+ | 3.67 | Jesse Tannehill | 222.3 | NYA |
| +045+ | 3.4 | Joe McGinnity | 389.7 | SFN |
| +048+ | 3.24 | Highball Wilson | 232.3 | MIN |
| +050+ | 3.16 | Ed Killian | 43 | CLE |
| +051+ | 3.15 | Christy Mathewson | 343 | SFN |
| +056+ | 2.7 | Rube Kisinger | 93.7 | DET |
| +055+ | 2.7 | Casey Patten | 262 | MIN |
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