| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 4.67 | 190308140_BOS_DET |
| Doc White | CHA | 4.45 | 190308130_OAK_CHA |
| Rube Waddell | OAK | 4.26 | 190308140_OAK_CHA |
| Bill Donovan | DET | 4.1 | 190308140_BOS_DET |
| Earl Moore | CLE | 3.46 | 190308131_NYA_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Togie Pittinger | ATL | -3.49 | 190308121_CHN_ATL |
| Henry Schmidt | LAN | -2.76 | 190308130_PIT_LAN |
| Mordecai Brown | SLN | -1.18 | 190308131_SLN_SFN |
| Dummy Taylor | SFN | -0.78 | 190308120_SLN_SFN |
| Cy Falkenberg | PIT | -0.69 | 190308140_PIT_LAN |
Based on accumulated WAA for this season up to 1903-08-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.35 | Earl Moore | 203.7 | CLE |
| +002+ | 9.98 | Cy Young | 248.7 | BOS |
| +003+ | 9.82 | Willie Sudhoff | 204.3 | BAL |
| +004+ | 9.63 | Bill Donovan | 218 | DET |
| +005+ | 9.52 | Doc White | 226.3 | CHA |
| +006+ | 9.26 | Addie Joss | 247.7 | CLE |
| +007+ | 8.9 | Rube Waddell | 290 | OAK |
| +008+ | 8.14 | George Mullin | 227 | DET |
| +009+ | 8.12 | Bill Dinneen | 211.7 | BOS |
| +010+ | 7.37 | Eddie Plank | 219.3 | OAK |
| +013+ | 6.05 | Chief Bender | 195.3 | OAK |
| +014+ | 6.02 | Tom Hughes | 155.7 | BOS |
| +015+ | 5.88 | Frank Kitson | 174.7 | DET |
| +017+ | 5.5 | Red Donahue | 169 | TOT |
| +020+ | 4.98 | Christy Mathewson | 265.3 | SFN |
| +021+ | 4.91 | Jack Chesbro | 240.3 | NYA |
| +022+ | 4.76 | Ed Siever | 165 | BAL |
| +023+ | 4.57 | Roy Patterson | 187 | CHA |
| +026+ | 3.99 | Clark Griffith | 159.7 | NYA |
| +032+ | 3.25 | Watty Lee | 96.7 | MIN |
| +037+ | 3.19 | Joe McGinnity | 299.7 | SFN |
| +046+ | 2.65 | Jack Powell | 206.3 | BAL |
| +047+ | 2.52 | Jesse Tannehill | 171.3 | NYA |
| +048+ | 2.5 | Highball Wilson | 179.3 | MIN |
| +049+ | 2.47 | Casey Patten | 228 | MIN |
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