| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 6.99 | 190307060_BAL_BOS |
| Rube Waddell | OAK | 6.6 | 190307060_DET_OAK |
| Bill Donovan | DET | 4.86 | 190307070_DET_OAK |
| Doc White | CHA | 3.91 | 190307070_CHA_NYA |
| Ed Siever | BAL | 1.78 | 190307060_BAL_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -4.02 | 190307060_PHI_PIT |
| Roy Evans | BAL | -3.47 | 190307070_BAL_BOS |
| Wiley Piatt | ATL | -2.42 | 190307070_ATL_CIN |
| Ned Garvin | LAN | -1.86 | 190307061_LAN_CIN |
| Ed Poole | CIN | -1.36 | 190307070_ATL_CIN |
Based on accumulated WAA for this season up to 1903-07-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.68 | Cy Young | 166.7 | BOS |
| +002+ | 7.38 | Rube Waddell | 204 | OAK |
| +003+ | 6.77 | Doc White | 152.3 | CHA |
| +004+ | 6.65 | Addie Joss | 155.3 | CLE |
| +005+ | 6.49 | George Mullin | 152 | DET |
| +006+ | 6.43 | Bill Donovan | 137.7 | DET |
| +007+ | 5.79 | Bill Dinneen | 143.7 | BOS |
| +008+ | 5.59 | Earl Moore | 129.7 | CLE |
| +009+ | 5.05 | Willie Sudhoff | 131 | BAL |
| +010+ | 5.03 | Eddie Plank | 145.7 | OAK |
| +011+ | 4.97 | Jack Chesbro | 167.3 | NYA |
| +013+ | 4.51 | Bill Bernhard | 134 | CLE |
| +016+ | 3.86 | Sam Leever | 131 | PIT |
| +017+ | 3.85 | Chief Bender | 144.3 | OAK |
| +018+ | 3.84 | Tom Hughes | 101.7 | BOS |
| +020+ | 3.58 | Red Donahue | 131 | BAL |
| +022+ | 3.17 | Barney Wolfe | 78.3 | NYA |
| +023+ | 2.94 | Joe McGinnity | 213.3 | SFN |
| +024+ | 2.92 | Christy Mathewson | 170 | SFN |
| +027+ | 2.59 | Jesse Tannehill | 133.3 | NYA |
| +034+ | 2.38 | Frank Kitson | 114.3 | DET |
| +040+ | 1.99 | Ed Siever | 88.3 | BAL |
| +041+ | 1.97 | Noodles Hahn | 122.7 | CIN |
| +051+ | 1.56 | Deacon Phillippe | 149.7 | PIT |
| +052+ | 1.54 | Gus Dorner | 66 | CLE |
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