| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 4.74 | 190308232_BOS_BAL |
| Bill Donovan | DET | 4.01 | 190308250_CHA_DET |
| Doc White | CHA | 3.68 | 190308231_NYA_CHA |
| Willie Sudhoff | BAL | 3.65 | 190308232_BOS_BAL |
| Addie Joss | CLE | 3.09 | 190308240_OAK_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -4.55 | 190308240_PIT_PHI |
| Mordecai Brown | SLN | -1.41 | 190308240_SLN_ATL |
| Ed Doheny | PIT | -1.32 | 190308251_PIT_PHI |
| John Malarkey | ATL | -0.88 | 190308240_SLN_ATL |
| Bill Phillips | CIN | -0.44 | 190308240_CIN_LAN |
Based on accumulated WAA for this season up to 1903-08-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.23 | Earl Moore | 230.7 | CLE |
| +002+ | 11.73 | Cy Young | 275.7 | BOS |
| +003+ | 11.07 | Bill Donovan | 245 | DET |
| +004+ | 10.91 | Addie Joss | 274.7 | CLE |
| +005+ | 10.79 | Willie Sudhoff | 230.7 | BAL |
| +006+ | 10.72 | Rube Waddell | 324 | OAK |
| +007+ | 9.7 | Doc White | 248.7 | CHA |
| +008+ | 9.27 | George Mullin | 253 | DET |
| +009+ | 8.58 | Eddie Plank | 253.7 | OAK |
| +010+ | 8.23 | Bill Dinneen | 229.7 | BOS |
| +011+ | 6.93 | Frank Kitson | 201.7 | DET |
| +017+ | 5.45 | Tom Hughes | 177.7 | BOS |
| +018+ | 5.37 | Jack Chesbro | 257.3 | NYA |
| +019+ | 5.17 | Roy Patterson | 218.7 | CHA |
| +020+ | 5.04 | Chief Bender | 214.3 | OAK |
| +022+ | 4.8 | Ed Siever | 183 | BAL |
| +023+ | 4.8 | Red Donahue | 193 | TOT |
| +025+ | 4.51 | Christy Mathewson | 296.3 | SFN |
| +026+ | 4.46 | Sam Leever | 231 | PIT |
| +027+ | 4.45 | Clark Griffith | 186 | NYA |
| +034+ | 3.68 | Jack Powell | 233.3 | BAL |
| +035+ | 3.62 | Watty Lee | 112.3 | MIN |
| +036+ | 3.59 | Barney Wolfe | 115.3 | NYA |
| +047+ | 2.73 | Patsy Flaherty | 238.7 | CHA |
| +049+ | 2.59 | Casey Patten | 236 | MIN |
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