| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 7.31 | 190306300_OAK_CLE |
| Cy Young | BOS | 5.8 | 190306281_BOS_BAL |
| Doc White | CHA | 3.87 | 190306300_BOS_CHA |
| Sam Leever | PIT | 2.36 | 190306300_PIT_LAN |
| Christy Mathewson | SFN | 1.9 | 190306300_SLN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Togie Pittinger | ATL | -1.3 | 190306290_CHN_ATL |
| Henry Schmidt | LAN | -0.4 | 190306300_PIT_LAN |
| Chappie McFarland | SLN | -0.24 | 190306300_SLN_SFN |
| Davey Dunkle | CHA | -0.2 | 190306290_BOS_CHA |
| Bill Reidy | BAL | -0.19 | 190306290_NYA_BAL |
Based on accumulated WAA for this season up to 1903-06-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.47 | Rube Waddell | 186 | OAK |
| +002+ | 6.69 | Cy Young | 147.7 | BOS |
| +003+ | 6.12 | Addie Joss | 137.3 | CLE |
| +004+ | 5.85 | George Mullin | 135 | DET |
| +005+ | 5.64 | Doc White | 134.3 | CHA |
| +006+ | 5.62 | Eddie Plank | 135 | OAK |
| +007+ | 5.37 | Bill Donovan | 113.7 | DET |
| +008+ | 5.36 | Earl Moore | 117 | CLE |
| +009+ | 4.88 | Bill Dinneen | 134.7 | BOS |
| +010+ | 4.73 | Jack Chesbro | 149.3 | NYA |
| +011+ | 3.9 | Willie Sudhoff | 113 | BAL |
| +013+ | 3.68 | Roy Patterson | 109 | CHA |
| +014+ | 3.55 | Bill Bernhard | 125 | CLE |
| +015+ | 3.4 | Chief Bender | 131.3 | OAK |
| +019+ | 3.2 | Joe McGinnity | 185.7 | SFN |
| +020+ | 3.16 | Tom Hughes | 92.7 | BOS |
| +021+ | 2.94 | Sam Leever | 122 | PIT |
| +022+ | 2.82 | Red Donahue | 122 | BAL |
| +030+ | 2.45 | Ed Siever | 76 | BAL |
| +031+ | 2.24 | John Deering | 49.7 | DET |
| +034+ | 2.13 | Christy Mathewson | 161 | SFN |
| +035+ | 2.08 | Frank Kitson | 98.3 | DET |
| +036+ | 2.08 | Jesse Tannehill | 114.3 | NYA |
| +039+ | 2.01 | Jake Weimer | 124.3 | CHN |
| +041+ | 1.95 | Barney Wolfe | 60.3 | NYA |
_