| Starter | Tm | Tier | Game |
|---|---|---|---|
| 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 |
| Tom Hughes | BOS | 1.44 | 190309120_NYA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -4.62 | 190309110_PHI_PIT |
| Henry Schmidt | LAN | -2.63 | 190309110_LAN_CHN |
| John Malarkey | ATL | -1.82 | 190309130_ATL_CIN |
| 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 1903-09-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.91 | Cy Young | 314.7 | BOS |
| +002+ | 12.06 | Bill Donovan | 271 | DET |
| +004+ | 11.6 | George Mullin | 291.7 | DET |
| +005+ | 10.99 | Willie Sudhoff | 265.7 | BAL |
| +006+ | 10.7 | Doc White | 282.7 | CHA |
| +008+ | 10.18 | Bill Dinneen | 264 | BOS |
| +009+ | 9.99 | Rube Waddell | 324 | OAK |
| +010+ | 8.74 | Eddie Plank | 290.7 | OAK |
| +012+ | 7.42 | Tom Hughes | 222.7 | BOS |
| +013+ | 7.37 | Frank Kitson | 232.7 | DET |
| +015+ | 6.95 | Red Donahue | 235 | TOT |
| +017+ | 6.57 | Jack Powell | 277.3 | BAL |
| +018+ | 6.48 | Roy Patterson | 260.7 | CHA |
| +019+ | 6.47 | Ed Siever | 229 | BAL |
| +023+ | 5.63 | Jack Chesbro | 297.3 | NYA |
| +024+ | 5.53 | Chief Bender | 249.3 | OAK |
| +025+ | 5.45 | Clark Griffith | 204 | NYA |
| +028+ | 4.91 | Sam Leever | 267 | PIT |
| +039+ | 3.69 | Jesse Tannehill | 222.3 | NYA |
| +044+ | 3.5 | Joe McGinnity | 398.3 | SFN |
| +048+ | 3.26 | Highball Wilson | 232.3 | MIN |
| +050+ | 3.16 | Ed Killian | 43 | CLE |
| +052+ | 2.96 | Christy Mathewson | 343 | SFN |
| +055+ | 2.72 | Casey Patten | 262 | MIN |
| +056+ | 2.71 | Rube Kisinger | 93.7 | DET |
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