| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Donovan | DET | 5.36 | 190308030_DET_CLE |
| Rube Waddell | OAK | 4.86 | 190308050_BOS_OAK |
| Bill Dinneen | BOS | 3.02 | 190308050_BOS_OAK |
| Earl Moore | CLE | 2.67 | 190308050_DET_CLE |
| Ed Siever | BAL | 1.41 | 190308030_CHA_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Henry Schmidt | LAN | -3.13 | 190308030_LAN_PHI |
| Chick Fraser | PHI | -2.73 | 190308030_LAN_PHI |
| Roy Evans | BAL | -2.36 | 190308042_CHA_BAL |
| Cy Falkenberg | PIT | -0.87 | 190308030_PIT_SLN |
| Jock Menefee | CHN | -0.38 | 190308040_PIT_CHN |
Based on accumulated WAA for this season up to 1903-08-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.72 | Bill Donovan | 200 | DET |
| +002+ | 9.59 | Rube Waddell | 276 | OAK |
| +003+ | 9.33 | Cy Young | 223.7 | BOS |
| +004+ | 9.19 | Earl Moore | 185.7 | CLE |
| +005+ | 8.28 | Willie Sudhoff | 186.3 | BAL |
| +006+ | 8.09 | Doc White | 199.3 | CHA |
| +007+ | 7.91 | Bill Dinneen | 193.7 | BOS |
| +008+ | 7.82 | George Mullin | 209 | DET |
| +009+ | 7.73 | Addie Joss | 220.7 | CLE |
| +010+ | 7.43 | Eddie Plank | 207.3 | OAK |
| +015+ | 4.99 | Tom Hughes | 137.7 | BOS |
| +016+ | 4.84 | Chief Bender | 178.3 | OAK |
| +018+ | 4.28 | Frank Kitson | 156.7 | DET |
| +020+ | 4.22 | Ed Siever | 149 | BAL |
| +019+ | 4.22 | Roy Patterson | 165 | CHA |
| +021+ | 4.21 | Christy Mathewson | 238.3 | SFN |
| +024+ | 4.09 | Jack Chesbro | 223.3 | NYA |
| +025+ | 3.8 | Red Donahue | 140 | TOT |
| +029+ | 3.3 | Clark Griffith | 150.7 | NYA |
| +030+ | 3.25 | Highball Wilson | 164.3 | MIN |
| +035+ | 2.87 | Casey Patten | 220.7 | MIN |
| +050+ | 2.07 | Joe McGinnity | 273.7 | SFN |
| +052+ | 2 | Sam Leever | 180.7 | PIT |
| +054+ | 1.9 | Watty Lee | 81.7 | MIN |
| +061+ | 1.5 | Jesse Tannehill | 156.3 | NYA |
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