| Starter | Tm | Tier | Game |
|---|---|---|---|
| Doc White | CHA | 4.07 | 190307210_CHA_MIN |
| Addie Joss | CLE | 2.35 | 190307201_CLE_NYA |
| Christy Mathewson | SFN | 1.75 | 190307210_SFN_LAN |
| Eddie Plank | OAK | 1.72 | 190307200_BAL_OAK |
| Sam Leever | PIT | 1.69 | 190307200_PIT_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike O'Neill | SLN | -3.74 | 190307190_LAN_SLN |
| Chick Fraser | PHI | -2.38 | 190307192_PHI_CIN |
| Ed Poole | CIN | -1.57 | 190307191_PHI_CIN |
| Ned Garvin | LAN | -1.02 | 190307210_SFN_LAN |
| Gene Wright | CLE | -0.93 | 190307210_CLE_NYA |
Based on accumulated WAA for this season up to 1903-07-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.77 | Cy Young | 193.7 | BOS |
| +002+ | 8.38 | Rube Waddell | 227 | OAK |
| +003+ | 7.66 | Bill Donovan | 164.7 | DET |
| +004+ | 7.15 | Addie Joss | 181.7 | CLE |
| +005+ | 6.75 | Bill Bernhard | 163.3 | CLE |
| +006+ | 6.68 | George Mullin | 179 | DET |
| +007+ | 6.66 | Earl Moore | 150.7 | CLE |
| +008+ | 6.54 | Doc White | 173.7 | CHA |
| +009+ | 6.34 | Bill Dinneen | 164.7 | BOS |
| +010+ | 6.01 | Willie Sudhoff | 150.3 | BAL |
| +011+ | 5.47 | Eddie Plank | 171.7 | OAK |
| +014+ | 4.71 | Jack Chesbro | 188.3 | NYA |
| +015+ | 4.62 | Chief Bender | 162.3 | OAK |
| +016+ | 4.44 | Sam Leever | 157 | PIT |
| +018+ | 4.18 | Barney Wolfe | 99.3 | NYA |
| +020+ | 3.79 | Roy Patterson | 128.3 | CHA |
| +022+ | 3.64 | Ed Siever | 115.3 | BAL |
| +023+ | 3.63 | Christy Mathewson | 202.3 | SFN |
| +024+ | 3.61 | Red Donahue | 131 | BAL |
| +026+ | 3.42 | Tom Hughes | 111.7 | BOS |
| +032+ | 2.58 | Highball Wilson | 136.3 | MIN |
| +035+ | 2.45 | Clark Griffith | 129.7 | NYA |
| +036+ | 2.41 | Casey Patten | 182 | MIN |
| +037+ | 2.4 | Frank Kitson | 123.7 | DET |
| +040+ | 2.24 | Deacon Phillippe | 167.7 | PIT |
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