| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 8.58 | 190406010_BOS_CLE |
| Jack Taylor | SLN | 3.01 | 190406030_SLN_ATL |
| Eddie Plank | OAK | 2.14 | 190406010_OAK_BAL |
| Bill Donovan | DET | 1.55 | 190406010_NYA_DET |
| Red Donahue | CLE | 1.4 | 190406030_BOS_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ed Poole | LAN | -1.42 | 190406030_PIT_LAN |
| Jack Sutthoff | CIN | -1.22 | 190406020_CIN_SFN |
| Chick Fraser | PHI | -0.7 | 190406030_CHN_PHI |
| Happy Townsend | MIN | -0.65 | 190406020_MIN_CHA |
| Dummy Taylor | SFN | -0.25 | 190406030_CIN_SFN |
Based on accumulated WAA for this season up to 1904-06-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.36 | Rube Waddell | 112 | OAK |
| +002+ | 5.72 | Joe McGinnity | 115 | SFN |
| +003+ | 4.6 | Red Donahue | 82 | CLE |
| +004+ | 4.23 | Cy Young | 92 | BOS |
| +005+ | 4 | Jesse Tannehill | 78.7 | BOS |
| +006+ | 3.68 | Jack Chesbro | 119 | NYA |
| +007+ | 3.4 | Frank Owen | 89 | CHA |
| +008+ | 3.38 | Bill Dinneen | 86.7 | BOS |
| +013+ | 2.66 | Norwood Gibson | 62 | BOS |
| +017+ | 2.16 | Eddie Plank | 104 | OAK |
| +021+ | 1.88 | Ed Killian | 105.3 | DET |
| +022+ | 1.87 | Harry Howell | 72.7 | BAL |
| +025+ | 1.63 | Jake Weimer | 78.3 | CHN |
| +033+ | 1.36 | Weldon Henley | 83.3 | OAK |
| +032+ | 1.36 | Fred Glade | 54.7 | BAL |
| +035+ | 1.29 | Jack Taylor | 83 | SLN |
| +037+ | 1.28 | Ed Siever | 76 | BAL |
| XXXXX | 1.16 | Bill Bernhard | 86 | CLE |
| XXXXX | 1.02 | Casey Patten | 94.7 | MIN |
| XXXXX | 0.92 | Chappie McFarland | 61 | SLN |
| XXXXX | 0.91 | Togie Pittinger | 97.3 | ATL |
| XXXXX | 0.91 | Nick Altrock | 76.3 | CHA |
| XXXXX | 0.89 | George Mullin | 112 | DET |
| XXXXX | 0.88 | Jack Powell | 94.7 | NYA |
| XXXXX | 0.87 | Barney Pelty | 59.3 | BAL |
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