| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 5.37 | 190307270_MIN_OAK |
| Bill Donovan | DET | 4.58 | 190307261_DET_CHA |
| Bill Dinneen | BOS | 2.83 | 190307270_NYA_BOS |
| Addie Joss | CLE | 2.44 | 190307270_CLE_BAL |
| Willie Sudhoff | BAL | 1.75 | 190307270_CLE_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike O'Neill | SLN | -3.86 | 190307280_SLN_CHN |
| Fred Mitchell | PHI | -3.67 | 190307280_PHI_LAN |
| Togie Pittinger | ATL | -3.21 | 190307270_ATL_SFN |
| Gene Wright | CLE | -1.09 | 190307260_CLE_BAL |
| Ned Garvin | LAN | -0.7 | 190307280_PHI_LAN |
Based on accumulated WAA for this season up to 1903-07-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.82 | Cy Young | 206.7 | BOS |
| +002+ | 9.79 | Rube Waddell | 253 | OAK |
| +003+ | 9.25 | Bill Donovan | 182.7 | DET |
| +004+ | 8.17 | Earl Moore | 168.7 | CLE |
| +005+ | 7.84 | George Mullin | 197 | DET |
| +006+ | 7.23 | Bill Dinneen | 173.7 | BOS |
| +007+ | 6.92 | Willie Sudhoff | 168.3 | BAL |
| +008+ | 6.9 | Addie Joss | 198.7 | CLE |
| +009+ | 6.85 | Bill Bernhard | 165.7 | CLE |
| +010+ | 6.59 | Doc White | 181.3 | CHA |
| +011+ | 6.52 | Eddie Plank | 189.3 | OAK |
| +014+ | 4.79 | Chief Bender | 170.3 | OAK |
| +015+ | 4.44 | Jack Chesbro | 200.3 | NYA |
| +017+ | 4.39 | Tom Hughes | 128.7 | BOS |
| +020+ | 4.23 | Ed Siever | 132.3 | BAL |
| +022+ | 3.69 | Red Donahue | 131 | BAL |
| +023+ | 3.59 | Christy Mathewson | 219.3 | SFN |
| +025+ | 3.43 | Roy Patterson | 148 | CHA |
| +027+ | 3.29 | Sam Leever | 169 | PIT |
| +032+ | 2.97 | Frank Kitson | 132.7 | DET |
| +035+ | 2.81 | Highball Wilson | 145.3 | MIN |
| +036+ | 2.78 | Clark Griffith | 141.7 | NYA |
| +044+ | 2.29 | Casey Patten | 200.7 | MIN |
| +047+ | 2.14 | Watty Lee | 81.7 | MIN |
| +054+ | 1.72 | Jake Weimer | 175 | CHN |
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