| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 6.1 | 190307180_DET_BOS |
| Rube Waddell | OAK | 5.39 | 190307170_BAL_OAK |
| Bill Donovan | DET | 3.97 | 190307170_DET_BOS |
| Earl Moore | CLE | 1.53 | 190307170_CLE_NYA |
| Roy Patterson | CHA | 0.98 | 190307181_CHA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Togie Pittinger | ATL | -3.88 | 190307181_ATL_CHN |
| Mike O'Neill | SLN | -3.74 | 190307190_LAN_SLN |
| Fred Mitchell | PHI | -3.74 | 190307182_PHI_CIN |
| Roy Evans | BAL | -2.45 | 190307170_BAL_OAK |
| Ed Poole | CIN | -1.57 | 190307191_PHI_CIN |
Based on accumulated WAA for this season up to 1903-07-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.85 | Cy Young | 193.7 | BOS |
| +002+ | 8.49 | Rube Waddell | 227 | OAK |
| +003+ | 7.74 | Bill Donovan | 164.7 | DET |
| +004+ | 7.72 | Addie Joss | 173.7 | CLE |
| +005+ | 7.44 | Doc White | 169.3 | CHA |
| +006+ | 6.76 | George Mullin | 179 | DET |
| +007+ | 6.69 | Earl Moore | 150.7 | CLE |
| +008+ | 6.42 | Bill Dinneen | 164.7 | BOS |
| +009+ | 5.97 | Bill Bernhard | 154.3 | CLE |
| +010+ | 5.52 | Willie Sudhoff | 142.3 | BAL |
| +011+ | 5.36 | Eddie Plank | 162.7 | OAK |
| +014+ | 4.55 | Jack Chesbro | 183.3 | NYA |
| +015+ | 4.38 | Sam Leever | 149 | PIT |
| +018+ | 3.88 | Chief Bender | 153.3 | OAK |
| +019+ | 3.86 | Barney Wolfe | 95.3 | NYA |
| +020+ | 3.83 | Christy Mathewson | 194.3 | SFN |
| +021+ | 3.81 | Roy Patterson | 128.3 | CHA |
| +022+ | 3.64 | Red Donahue | 131 | BAL |
| +024+ | 3.47 | Tom Hughes | 111.7 | BOS |
| +027+ | 3.05 | Ed Siever | 106.3 | BAL |
| +035+ | 2.46 | Frank Kitson | 123.7 | DET |
| +038+ | 2.28 | Deacon Phillippe | 167.7 | PIT |
| +039+ | 2.23 | Highball Wilson | 127.3 | MIN |
| +041+ | 2.17 | Watty Lee | 81.7 | MIN |
| +042+ | 2.13 | Casey Patten | 178 | MIN |
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