| 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 1903-07-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.65 | Cy Young | 166.7 | BOS |
| +002+ | 7.34 | Rube Waddell | 204 | OAK |
| +003+ | 6.71 | Doc White | 152.3 | CHA |
| +004+ | 6.61 | Addie Joss | 155.3 | CLE |
| +005+ | 6.47 | George Mullin | 152 | DET |
| +006+ | 6.41 | Bill Donovan | 137.7 | DET |
| +007+ | 5.76 | Bill Dinneen | 143.7 | BOS |
| +008+ | 5.41 | Earl Moore | 121 | CLE |
| +009+ | 5.19 | Jack Chesbro | 158.3 | NYA |
| +010+ | 5 | Eddie Plank | 145.7 | OAK |
| +012+ | 4.48 | Bill Bernhard | 134 | CLE |
| +013+ | 4.42 | Willie Sudhoff | 122 | BAL |
| +016+ | 3.84 | Sam Leever | 131 | PIT |
| +017+ | 3.82 | Tom Hughes | 101.7 | BOS |
| +018+ | 3.79 | Roy Patterson | 109 | CHA |
| +019+ | 3.56 | Red Donahue | 131 | BAL |
| +021+ | 3.22 | Chief Bender | 135.3 | OAK |
| +023+ | 3.15 | Barney Wolfe | 78.3 | NYA |
| +022+ | 3.15 | Joe McGinnity | 204.3 | SFN |
| +024+ | 2.88 | Christy Mathewson | 170 | SFN |
| +027+ | 2.56 | Jesse Tannehill | 133.3 | NYA |
| +038+ | 2.05 | Frank Kitson | 106.3 | DET |
| +041+ | 1.97 | Ed Siever | 88.3 | BAL |
| +042+ | 1.94 | Noodles Hahn | 122.7 | CIN |
| +048+ | 1.71 | John Deering | 52.7 | DET |
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