| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 5.09 | 190309190_CHA_BOS |
| George Mullin | DET | 4.27 | 190309190_DET_OAK |
| Willie Sudhoff | BAL | 3.86 | 190309181_BAL_OAK |
| Doc White | CHA | 3.68 | 190309181_CHA_NYA |
| Jack Chesbro | NYA | 1.14 | 190309190_CLE_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Togie Pittinger | ATL | -4.71 | 190309182_ATL_PIT |
| Fred Mitchell | PHI | -4.03 | 190309171_PHI_CHN |
| Bob Rhoads | CLE | -2.35 | 190309170_CLE_BOS |
| Henry Schmidt | LAN | -2.16 | 190309172_LAN_SLN |
| Clarence Currie | CHN | -1.38 | 190309172_PHI_CHN |
Based on accumulated WAA for this season up to 1903-09-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 13.61 | Cy Young | 332.7 | BOS |
| +002+ | 12.66 | George Mullin | 303.7 | DET |
| +004+ | 11.26 | Bill Donovan | 279 | DET |
| +005+ | 10.97 | Doc White | 290.7 | CHA |
| +007+ | 10.94 | Willie Sudhoff | 268.7 | BAL |
| +008+ | 10.4 | Bill Dinneen | 282 | BOS |
| +009+ | 10.36 | Rube Waddell | 324 | OAK |
| +010+ | 9.69 | Eddie Plank | 307 | OAK |
| +011+ | 7.99 | Frank Kitson | 240.7 | DET |
| +012+ | 7.64 | Jack Powell | 290.3 | BAL |
| +015+ | 7.15 | Jack Chesbro | 315.3 | NYA |
| +016+ | 6.85 | Roy Patterson | 260.7 | CHA |
| +017+ | 6.82 | Red Donahue | 249 | TOT |
| +018+ | 6.81 | Tom Hughes | 224.7 | BOS |
| +021+ | 6.74 | Ed Siever | 229 | BAL |
| +028+ | 4.91 | Chief Bender | 251 | OAK |
| +030+ | 4.76 | Sam Leever | 285 | PIT |
| +036+ | 4.25 | Barney Wolfe | 133.3 | NYA |
| +047+ | 3.59 | Highball Wilson | 233.3 | MIN |
| +049+ | 3.43 | Joe McGinnity | 407 | SFN |
| +050+ | 3.35 | Christy Mathewson | 358 | SFN |
| +051+ | 3.33 | Rube Kisinger | 110.7 | DET |
| +053+ | 2.98 | Jesse Tannehill | 230.3 | NYA |
| +057+ | 2.78 | George Winter | 162.3 | BOS |
| +060+ | 2.29 | Ed Killian | 53.7 | CLE |
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