| Starter | Tm | Tier | Game |
|---|---|---|---|
| Earl Moore | CLE | 4.52 | 190308260_BAL_CLE |
| Bill Dinneen | BOS | 2.36 | 190308260_BOS_OAK |
| Eddie Plank | OAK | 2.31 | 190308270_BOS_OAK |
| Roy Patterson | CHA | 0.86 | 190308260_CHA_DET |
| Christy Mathewson | SFN | 0.78 | 190308261_SFN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -4.19 | 190308270_PHI_LAN |
| Togie Pittinger | ATL | -3.65 | 190308272_SFN_ATL |
| Henry Schmidt | LAN | -3.15 | 190308270_PHI_LAN |
| Dummy Taylor | SFN | -1.22 | 190308271_SFN_ATL |
| Chappie McFarland | SLN | -0.78 | 190308280_SLN_PIT |
Based on accumulated WAA for this season up to 1903-08-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.61 | Earl Moore | 239.7 | CLE |
| +002+ | 11.72 | Cy Young | 275.7 | BOS |
| +003+ | 11.06 | Bill Donovan | 245 | DET |
| +004+ | 10.91 | Addie Joss | 274.7 | CLE |
| +005+ | 10.81 | Willie Sudhoff | 230.7 | BAL |
| +006+ | 10.71 | Rube Waddell | 324 | OAK |
| +007+ | 9.72 | Doc White | 248.7 | CHA |
| +008+ | 9.42 | George Mullin | 254.7 | DET |
| +009+ | 9.03 | Bill Dinneen | 238.7 | BOS |
| +010+ | 8.55 | Eddie Plank | 262.7 | OAK |
| +011+ | 6.93 | Frank Kitson | 201.7 | DET |
| +017+ | 5.96 | Jack Chesbro | 266.3 | NYA |
| +018+ | 5.83 | Tom Hughes | 186.7 | BOS |
| +019+ | 5.47 | Roy Patterson | 226.7 | CHA |
| +020+ | 5.42 | Chief Bender | 223.3 | OAK |
| +022+ | 4.82 | Ed Siever | 183 | BAL |
| +023+ | 4.81 | Red Donahue | 193 | TOT |
| +025+ | 4.46 | Sam Leever | 231 | PIT |
| +026+ | 4.45 | Clark Griffith | 186 | NYA |
| +034+ | 3.7 | Jack Powell | 233.3 | BAL |
| +035+ | 3.63 | Watty Lee | 112.3 | MIN |
| +036+ | 3.59 | Barney Wolfe | 115.3 | NYA |
| +038+ | 3.5 | Christy Mathewson | 310.7 | SFN |
| +047+ | 2.76 | Jesse Tannehill | 202.3 | NYA |
| +048+ | 2.75 | Patsy Flaherty | 238.7 | CHA |
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