| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 4.74 | 190308232_BOS_BAL |
| Earl Moore | CLE | 4.44 | 190308220_OAK_CLE |
| Doc White | CHA | 3.68 | 190308231_NYA_CHA |
| Willie Sudhoff | BAL | 3.65 | 190308232_BOS_BAL |
| Eddie Plank | OAK | 2.27 | 190308240_OAK_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Mitchell | PHI | -4.55 | 190308240_PIT_PHI |
| Henry Schmidt | LAN | -3.11 | 190308221_CIN_LAN |
| Mordecai Brown | SLN | -1.41 | 190308240_SLN_ATL |
| Ed Doheny | PIT | -1.16 | 190308221_PIT_PHI |
| John Malarkey | ATL | -0.88 | 190308240_SLN_ATL |
Based on accumulated WAA for this season up to 1903-08-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.25 | Earl Moore | 230.7 | CLE |
| +002+ | 11.75 | Cy Young | 275.7 | BOS |
| +003+ | 10.93 | Addie Joss | 274.7 | CLE |
| +004+ | 10.81 | Willie Sudhoff | 230.7 | BAL |
| +005+ | 10.75 | Rube Waddell | 324 | OAK |
| +006+ | 10.69 | Bill Donovan | 236 | DET |
| +007+ | 9.71 | Doc White | 248.7 | CHA |
| +008+ | 9.3 | George Mullin | 253 | DET |
| +009+ | 8.6 | Eddie Plank | 253.7 | OAK |
| +010+ | 8.24 | Bill Dinneen | 229.7 | BOS |
| +011+ | 6.95 | Frank Kitson | 201.7 | DET |
| +017+ | 5.46 | Tom Hughes | 177.7 | BOS |
| +018+ | 5.39 | Jack Chesbro | 257.3 | NYA |
| +019+ | 5.33 | Red Donahue | 187 | TOT |
| +020+ | 5.18 | Roy Patterson | 218.7 | CHA |
| +021+ | 5.06 | Chief Bender | 214.3 | OAK |
| +023+ | 4.81 | Ed Siever | 183 | BAL |
| +024+ | 4.53 | Christy Mathewson | 296.3 | SFN |
| +026+ | 4.46 | Clark Griffith | 186 | NYA |
| +027+ | 4.42 | Sam Leever | 231 | PIT |
| +033+ | 3.7 | Jack Powell | 233.3 | BAL |
| +034+ | 3.63 | Watty Lee | 112.3 | MIN |
| +036+ | 3.6 | Barney Wolfe | 115.3 | NYA |
| +047+ | 2.61 | Casey Patten | 236 | MIN |
| +048+ | 2.48 | Highball Wilson | 197.3 | MIN |
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