| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 5.55 | 190307302_MIN_OAK |
| Bill Donovan | DET | 4.98 | 190307300_BAL_DET |
| Cy Young | BOS | 4.87 | 190308011_BOS_MIN |
| Doc White | CHA | 2.83 | 190307300_CLE_CHA |
| Earl Moore | CLE | 2.51 | 190308010_CLE_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -4.31 | 190308011_LAN_PHI |
| Togie Pittinger | ATL | -3.56 | 190308011_SFN_ATL |
| Roy Evans | BAL | -1.96 | 190308012_BAL_DET |
| Ed Poole | CIN | -1.59 | 190307300_CHN_CIN |
| Ned Garvin | LAN | -1.49 | 190308011_LAN_PHI |
Based on accumulated WAA for this season up to 1903-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.89 | Bill Donovan | 191.7 | DET |
| +002+ | 9.47 | Cy Young | 223.7 | BOS |
| +003+ | 9.19 | Rube Waddell | 267 | OAK |
| +004+ | 8.49 | Earl Moore | 176.7 | CLE |
| +005+ | 8.06 | George Mullin | 206 | DET |
| +006+ | 7.81 | Willie Sudhoff | 177.3 | BAL |
| +007+ | 7.8 | Addie Joss | 210.7 | CLE |
| +008+ | 7.37 | Doc White | 190.3 | CHA |
| +009+ | 7.21 | Bill Dinneen | 184.7 | BOS |
| +010+ | 6.98 | Eddie Plank | 198.3 | OAK |
| +011+ | 6.86 | Bill Bernhard | 165.7 | CLE |
| +014+ | 5.07 | Tom Hughes | 137.7 | BOS |
| +016+ | 4.97 | Chief Bender | 178.3 | OAK |
| +019+ | 4.21 | Roy Patterson | 157 | CHA |
| +020+ | 4.18 | Ed Siever | 140.3 | BAL |
| +022+ | 3.8 | Frank Kitson | 150.7 | DET |
| +024+ | 3.66 | Christy Mathewson | 227.3 | SFN |
| +026+ | 3.65 | Jack Chesbro | 214.3 | NYA |
| +029+ | 3.41 | Clark Griffith | 150.7 | NYA |
| +030+ | 3.37 | Highball Wilson | 164.3 | MIN |
| +031+ | 3.3 | Sam Leever | 178 | PIT |
| +046+ | 2.42 | Casey Patten | 211.7 | MIN |
| +047+ | 2.33 | Joe McGinnity | 273.7 | SFN |
| +054+ | 1.96 | Watty Lee | 81.7 | MIN |
| +059+ | 1.61 | Jesse Tannehill | 156.3 | NYA |
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