| Starter | Tm | Tier | Game |
|---|---|---|---|
| Doc White | CHA | 3.98 | 190308162_MIN_CHA |
| Earl Moore | CLE | 3.68 | 190308150_NYA_CLE |
| Rube Waddell | OAK | 3.65 | 190308162_OAK_BAL |
| Willie Sudhoff | BAL | 3.27 | 190308162_OAK_BAL |
| Bill Dinneen | BOS | 2.9 | 190308170_BOS_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Togie Pittinger | ATL | -3.72 | 190308152_PIT_ATL |
| Henry Schmidt | LAN | -3.64 | 190308152_SLN_LAN |
| Bob Rhoads | SLN | -1.41 | 190308151_SLN_LAN |
| Ed Poole | CIN | -1.14 | 190308172_CIN_SFN |
| Gene Wright | BAL | -0.95 | 190308150_MIN_BAL |
Based on accumulated WAA for this season up to 1903-08-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.14 | Earl Moore | 212.7 | CLE |
| +002+ | 10.6 | Willie Sudhoff | 213.3 | BAL |
| +003+ | 9.98 | Cy Young | 248.7 | BOS |
| +004+ | 9.68 | Doc White | 230.7 | CHA |
| +005+ | 9.63 | Addie Joss | 256.7 | CLE |
| +006+ | 9.59 | Bill Donovan | 218 | DET |
| +007+ | 9.44 | Rube Waddell | 298 | OAK |
| +008+ | 8.38 | Eddie Plank | 237.3 | OAK |
| +009+ | 8.09 | George Mullin | 236 | DET |
| +010+ | 7.58 | Bill Dinneen | 212.7 | BOS |
| +012+ | 6.25 | Frank Kitson | 183.7 | DET |
| +013+ | 6.2 | Tom Hughes | 164.7 | BOS |
| +016+ | 5.74 | Chief Bender | 203.3 | OAK |
| +018+ | 5.47 | Red Donahue | 169 | TOT |
| +020+ | 5.13 | Ed Siever | 174 | BAL |
| +021+ | 4.97 | Roy Patterson | 191.7 | CHA |
| +022+ | 4.96 | Jack Chesbro | 240.3 | NYA |
| +023+ | 4.92 | Christy Mathewson | 274.3 | SFN |
| +027+ | 3.93 | Clark Griffith | 168 | NYA |
| +030+ | 3.77 | Watty Lee | 104.7 | MIN |
| +043+ | 2.81 | Jack Powell | 215.3 | BAL |
| +047+ | 2.52 | Highball Wilson | 179.3 | MIN |
| +048+ | 2.51 | Sam Leever | 202 | PIT |
| +051+ | 2.29 | Joe McGinnity | 308.7 | SFN |
| +057+ | 1.91 | Noodles Hahn | 211.7 | CIN |
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