| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 5.39 | 190307170_BAL_OAK |
| Bill Donovan | DET | 3.97 | 190307170_DET_BOS |
| Addie Joss | CLE | 2.18 | 190307151_CLE_BOS |
| Sam Leever | PIT | 1.88 | 190307160_SFN_PIT |
| Christy Mathewson | SFN | 1.81 | 190307150_SFN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -3.18 | 190307150_PHI_SLN |
| Togie Pittinger | ATL | -2.96 | 190307150_ATL_CHN |
| Roy Evans | BAL | -2.45 | 190307170_BAL_OAK |
| Henry Schmidt | LAN | -1.98 | 190307160_LAN_SLN |
| Clarence Currie | SLN | -0.3 | 190307150_PHI_SLN |
Based on accumulated WAA for this season up to 1903-07-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.46 | Rube Waddell | 227 | OAK |
| +002+ | 8.43 | Cy Young | 184.7 | BOS |
| +003+ | 7.7 | Bill Donovan | 164.7 | DET |
| +004+ | 7.69 | Addie Joss | 173.7 | CLE |
| +005+ | 7.44 | Doc White | 169.3 | CHA |
| +006+ | 6.67 | Earl Moore | 150.7 | CLE |
| +008+ | 6.4 | George Mullin | 171 | DET |
| +007+ | 6.4 | Bill Dinneen | 164.7 | BOS |
| +009+ | 5.95 | Bill Bernhard | 154.3 | CLE |
| +010+ | 5.5 | Willie Sudhoff | 142.3 | BAL |
| +011+ | 5.34 | Eddie Plank | 162.7 | OAK |
| +014+ | 4.52 | Jack Chesbro | 183.3 | NYA |
| +015+ | 4.34 | Sam Leever | 149 | PIT |
| +018+ | 3.86 | Chief Bender | 153.3 | OAK |
| +019+ | 3.85 | Barney Wolfe | 95.3 | NYA |
| +020+ | 3.79 | Christy Mathewson | 194.3 | SFN |
| +022+ | 3.62 | Red Donahue | 131 | BAL |
| +023+ | 3.46 | Tom Hughes | 111.7 | BOS |
| +024+ | 3.43 | Roy Patterson | 117 | CHA |
| +028+ | 3.04 | Ed Siever | 106.3 | BAL |
| +035+ | 2.43 | Frank Kitson | 123.7 | DET |
| +037+ | 2.28 | Highball Wilson | 127.3 | MIN |
| +040+ | 2.01 | Jesse Tannehill | 150.3 | NYA |
| +044+ | 1.9 | Clark Griffith | 120.7 | NYA |
| +047+ | 1.84 | Deacon Phillippe | 158.7 | PIT |
_