| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 7.24 | 190306270_OAK_DET |
| Bill Donovan | DET | 3.71 | 190306270_OAK_DET |
| Doc White | CHA | 3.24 | 190306250_NYA_CHA |
| Sam Leever | PIT | 3.1 | 190306260_PIT_SFN |
| Ed Siever | BAL | 2.03 | 190306250_BOS_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -5.03 | 190306252_PIT_PHI |
| Wiley Piatt | ATL | -3.51 | 190306251_SLN_ATL |
| Ed Poole | CIN | -2.11 | 190306270_CIN_LAN |
| Clarence Currie | SLN | -0.9 | 190306251_SLN_ATL |
| Ned Garvin | LAN | -0.66 | 190306252_CHN_LAN |
Based on accumulated WAA for this season up to 1903-06-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.46 | Rube Waddell | 177.3 | OAK |
| +002+ | 6.22 | Addie Joss | 137.3 | CLE |
| +003+ | 5.97 | Cy Young | 138.7 | BOS |
| +005+ | 5.48 | Bill Donovan | 113.7 | DET |
| +004+ | 5.48 | Earl Moore | 108 | CLE |
| +006+ | 5.15 | George Mullin | 126 | DET |
| +007+ | 5.12 | Eddie Plank | 126 | OAK |
| +008+ | 4.71 | Jack Chesbro | 140.3 | NYA |
| +009+ | 4.36 | Bill Dinneen | 125.7 | BOS |
| +010+ | 4.23 | Doc White | 114.3 | CHA |
| +011+ | 3.9 | Sam Leever | 113 | PIT |
| +012+ | 3.77 | Roy Patterson | 109 | CHA |
| +013+ | 3.6 | Willie Sudhoff | 104 | BAL |
| +014+ | 3.33 | Joe McGinnity | 185.7 | SFN |
| +017+ | 3.1 | Chief Bender | 122.3 | OAK |
| +020+ | 2.84 | Bill Bernhard | 116 | CLE |
| +025+ | 2.52 | Ed Siever | 76 | BAL |
| +026+ | 2.41 | Tom Hughes | 83.7 | BOS |
| +028+ | 2.29 | Christy Mathewson | 152 | SFN |
| +029+ | 2.29 | John Deering | 49.7 | DET |
| +033+ | 2.11 | Red Donahue | 113 | BAL |
| +039+ | 1.8 | Jesse Tannehill | 105.3 | NYA |
| +041+ | 1.69 | Jack Sutthoff | 108.7 | CIN |
| +044+ | 1.6 | Happy Townsend | 81.3 | MIN |
| +049+ | 1.47 | Jake Weimer | 115.3 | CHN |
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