| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 5.09 | 190308060_BOS_OAK |
| Bill Donovan | DET | 5.09 | 190308060_DET_CLE |
| Rube Waddell | OAK | 4.86 | 190308050_BOS_OAK |
| Doc White | CHA | 3.69 | 190308060_BAL_CHA |
| Earl Moore | CLE | 2.67 | 190308050_DET_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -4.45 | 190308072_PHI_SFN |
| Togie Pittinger | ATL | -3.82 | 190308071_LAN_ATL |
| Ned Garvin | LAN | -2.42 | 190308071_LAN_ATL |
| Mordecai Brown | SLN | -1.19 | 190308060_CIN_SLN |
| Dummy Taylor | SFN | -0.95 | 190308072_PHI_SFN |
Based on accumulated WAA for this season up to 1903-08-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.59 | Rube Waddell | 276 | OAK |
| +002+ | 9.46 | Bill Donovan | 209 | DET |
| +003+ | 9.35 | Cy Young | 230.7 | BOS |
| +004+ | 9.16 | Earl Moore | 185.7 | CLE |
| +005+ | 9.09 | Willie Sudhoff | 195.3 | BAL |
| +006+ | 8.65 | Doc White | 208.3 | CHA |
| +007+ | 8.3 | Addie Joss | 229.7 | CLE |
| +008+ | 7.92 | Bill Dinneen | 193.7 | BOS |
| +009+ | 7.78 | George Mullin | 209 | DET |
| +010+ | 7.16 | Eddie Plank | 211.3 | OAK |
| +014+ | 5.39 | Tom Hughes | 146.7 | BOS |
| +015+ | 5.34 | Chief Bender | 186.3 | OAK |
| +017+ | 5.07 | Frank Kitson | 165.7 | DET |
| +019+ | 4.53 | Ed Siever | 157 | BAL |
| +020+ | 4.44 | Roy Patterson | 170 | CHA |
| +023+ | 4.11 | Jack Chesbro | 223.3 | NYA |
| +024+ | 3.93 | Christy Mathewson | 247.3 | SFN |
| +025+ | 3.79 | Red Donahue | 140 | TOT |
| +029+ | 3.32 | Clark Griffith | 150.7 | NYA |
| +034+ | 3.06 | Highball Wilson | 171.3 | MIN |
| +037+ | 2.88 | Casey Patten | 220.7 | MIN |
| +049+ | 2.14 | Jesse Tannehill | 163.3 | NYA |
| +051+ | 2.05 | Joe McGinnity | 273.7 | SFN |
| +053+ | 1.97 | Sam Leever | 180.7 | PIT |
| +054+ | 1.9 | Watty Lee | 81.7 | MIN |
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