| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 4.59 | 190308291_BOS_MIN |
| Addie Joss | CLE | 3.38 | 190308301_CLE_BAL |
| Willie Sudhoff | BAL | 3.3 | 190308302_CLE_BAL |
| Doc White | CHA | 3 | 190308302_DET_CHA |
| George Mullin | DET | 2.42 | 190308301_DET_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Rhoads | SLN | -2.11 | 190308292_SLN_PIT |
| Ed Doheny | PIT | -1.33 | 190308300_PIT_SLN |
| John Malarkey | ATL | -1.02 | 190308280_SFN_ATL |
| Bob Ewing | CIN | -0.15 | 190308300_CIN_CHN |
| Jack Taylor | CHN | -0.1 | 190308300_CIN_CHN |
Based on accumulated WAA for this season up to 1903-08-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.53 | Earl Moore | 239.7 | CLE |
| +002+ | 12.19 | Cy Young | 285.7 | BOS |
| +003+ | 11 | Bill Donovan | 245 | DET |
| +004+ | 10.78 | Addie Joss | 283.7 | CLE |
| +005+ | 10.63 | Willie Sudhoff | 238.7 | BAL |
| +006+ | 10.58 | Rube Waddell | 324 | OAK |
| +007+ | 9.86 | Doc White | 255.7 | CHA |
| +008+ | 9.75 | George Mullin | 263.7 | DET |
| +009+ | 8.67 | Bill Dinneen | 238.7 | BOS |
| +010+ | 8.44 | Eddie Plank | 262.7 | OAK |
| +015+ | 6.25 | Frank Kitson | 208.7 | DET |
| +018+ | 5.85 | Jack Chesbro | 266.3 | NYA |
| +019+ | 5.55 | Tom Hughes | 186.7 | BOS |
| +020+ | 5.42 | Roy Patterson | 226.7 | CHA |
| +021+ | 5.35 | Red Donahue | 202 | TOT |
| +022+ | 5.33 | Chief Bender | 223.3 | OAK |
| +023+ | 4.75 | Sam Leever | 240 | PIT |
| +026+ | 4.65 | Ed Siever | 191 | BAL |
| +027+ | 4.45 | Jack Powell | 242.3 | BAL |
| +028+ | 4.37 | Clark Griffith | 186 | NYA |
| +035+ | 3.71 | Watty Lee | 122.3 | MIN |
| +036+ | 3.54 | Barney Wolfe | 115.3 | NYA |
| +041+ | 3.37 | Christy Mathewson | 310.7 | SFN |
| +046+ | 3.07 | Patsy Flaherty | 247.7 | CHA |
| +048+ | 2.97 | Highball Wilson | 206.3 | MIN |
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