| Starter | Tm | Tier | Game |
|---|---|---|---|
| Doc White | CHA | 4.07 | 190307210_CHA_MIN |
| Addie Joss | CLE | 2.35 | 190307201_CLE_NYA |
| Eddie Plank | OAK | 1.78 | 190307220_OAK_MIN |
| Christy Mathewson | SFN | 1.75 | 190307210_SFN_LAN |
| Sam Leever | PIT | 1.69 | 190307200_PIT_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Togie Pittinger | ATL | -3.14 | 190307220_LAN_ATL |
| Roy Evans | BAL | -1.97 | 190307220_BAL_CLE |
| Henry Schmidt | LAN | -1.69 | 190307220_LAN_ATL |
| Mordecai Brown | SLN | -1.3 | 190307220_CIN_SLN |
| Jack Harper | CIN | -1.01 | 190307220_CIN_SLN |
Based on accumulated WAA for this season up to 1903-07-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.76 | Cy Young | 193.7 | BOS |
| +002+ | 8.37 | Rube Waddell | 227 | OAK |
| +003+ | 7.66 | Bill Donovan | 164.7 | DET |
| +004+ | 7.47 | Earl Moore | 159.7 | CLE |
| +005+ | 7.14 | Addie Joss | 181.7 | CLE |
| +006+ | 6.75 | Bill Bernhard | 163.3 | CLE |
| +007+ | 6.67 | George Mullin | 179 | DET |
| +008+ | 6.53 | Doc White | 173.7 | CHA |
| +009+ | 6.34 | Bill Dinneen | 164.7 | BOS |
| +010+ | 6.07 | Eddie Plank | 180.7 | OAK |
| +011+ | 6.03 | Willie Sudhoff | 150.3 | BAL |
| +014+ | 4.7 | Jack Chesbro | 188.3 | NYA |
| +015+ | 4.62 | Chief Bender | 162.3 | OAK |
| +016+ | 4.43 | Sam Leever | 157 | PIT |
| +018+ | 4.17 | Barney Wolfe | 99.3 | NYA |
| +020+ | 3.78 | Roy Patterson | 128.3 | CHA |
| +021+ | 3.65 | Ed Siever | 115.3 | BAL |
| +022+ | 3.64 | Christy Mathewson | 202.3 | SFN |
| +023+ | 3.62 | Red Donahue | 131 | BAL |
| +026+ | 3.42 | Tom Hughes | 111.7 | BOS |
| +033+ | 2.57 | Highball Wilson | 136.3 | MIN |
| +039+ | 2.45 | Clark Griffith | 129.7 | NYA |
| +040+ | 2.4 | Frank Kitson | 123.7 | DET |
| +041+ | 2.39 | Casey Patten | 182 | MIN |
| +042+ | 2.24 | Deacon Phillippe | 167.7 | PIT |
_