| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 6.42 | 190307110_CHA_BOS |
| Rube Waddell | OAK | 5.8 | 190307110_CLE_OAK |
| Doc White | CHA | 4.81 | 190307100_CHA_BOS |
| Bill Donovan | DET | 4.37 | 190307100_DET_MIN |
| Sam Leever | PIT | 2 | 190307090_LAN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Evans | BAL | -2.52 | 190307110_BAL_NYA |
| Togie Pittinger | ATL | -2.13 | 190307110_ATL_PIT |
| Ned Garvin | LAN | -1.49 | 190307090_LAN_PIT |
| Mordecai Brown | SLN | -1.4 | 190307090_SFN_SLN |
| Jack Harper | CIN | -1.33 | 190307100_ATL_CIN |
Based on accumulated WAA for this season up to 1903-07-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.92 | Cy Young | 175.7 | BOS |
| +002+ | 7.29 | Addie Joss | 164.3 | CLE |
| +003+ | 7.05 | Doc White | 161.3 | CHA |
| +004+ | 7.03 | Rube Waddell | 209 | OAK |
| +005+ | 6.48 | Bill Donovan | 146.7 | DET |
| +006+ | 6.22 | George Mullin | 162 | DET |
| +007+ | 6.02 | Bill Dinneen | 152.7 | BOS |
| +008+ | 5.63 | Earl Moore | 129.7 | CLE |
| +009+ | 5.37 | Bill Bernhard | 145.3 | CLE |
| +010+ | 5.13 | Willie Sudhoff | 131.3 | BAL |
| +011+ | 4.99 | Jack Chesbro | 167.3 | NYA |
| +013+ | 4.73 | Eddie Plank | 153.7 | OAK |
| +014+ | 4.51 | Sam Leever | 140 | PIT |
| +017+ | 3.97 | Barney Wolfe | 87.3 | NYA |
| +019+ | 3.88 | Chief Bender | 144.3 | OAK |
| +020+ | 3.63 | Red Donahue | 131 | BAL |
| +022+ | 3.33 | Tom Hughes | 102.7 | BOS |
| +023+ | 3.27 | Christy Mathewson | 180.3 | SFN |
| +024+ | 2.95 | Jesse Tannehill | 144.3 | NYA |
| +032+ | 2.55 | Ed Siever | 96.3 | BAL |
| +031+ | 2.55 | Joe McGinnity | 222.3 | SFN |
| +035+ | 2.43 | Frank Kitson | 114.3 | DET |
| +041+ | 2.05 | Noodles Hahn | 129.7 | CIN |
| +043+ | 2.01 | Deacon Phillippe | 158.7 | PIT |
| +047+ | 1.75 | Highball Wilson | 116.3 | MIN |
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