| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe McGinnity | SFN | 9.68 | 190406290_ATL_SFN |
| Eddie Plank | OAK | 2.6 | 190406280_OAK_MIN |
| Sam Leever | PIT | 1.6 | 190406270_PIT_CHN |
| Frank Owen | CHA | 1.44 | 190406280_CHA_DET |
| George Mullin | DET | 1.32 | 190406280_CHA_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Duggleby | PHI | -3.49 | 190406290_LAN_PHI |
| Oscar Jones | LAN | -1.23 | 190406280_ATL_LAN |
| Beany Jacobson | MIN | -0.59 | 190406270_OAK_MIN |
| Vic Willis | ATL | -0.52 | 190406290_ATL_SFN |
| War Sanders | SLN | -0.16 | 190406290_CHN_SLN |
Based on accumulated WAA for this season up to 1904-06-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.05 | Joe McGinnity | 196 | SFN |
| +002+ | 7.42 | Rube Waddell | 161 | OAK |
| +003+ | 6.48 | Jack Chesbro | 173 | NYA |
| +004+ | 5.7 | Red Donahue | 116.3 | CLE |
| +005+ | 5.58 | Frank Owen | 153.7 | CHA |
| +006+ | 4.95 | Cy Young | 136 | BOS |
| +007+ | 4.28 | Jesse Tannehill | 122.7 | BOS |
| +008+ | 4.03 | Eddie Plank | 153 | OAK |
| +011+ | 3.56 | Harry Howell | 115.7 | BAL |
| +015+ | 3.08 | George Mullin | 175 | DET |
| +018+ | 3.04 | Bill Dinneen | 130.7 | BOS |
| +019+ | 2.93 | Ed Killian | 156 | DET |
| +020+ | 2.91 | Bill Bernhard | 123 | CLE |
| +022+ | 2.79 | Weldon Henley | 117.7 | OAK |
| +023+ | 2.67 | Fred Glade | 95.7 | BAL |
| +024+ | 2.58 | Jack Taylor | 138 | SLN |
| +026+ | 2.47 | Patsy Flaherty | 96 | TOT |
| +031+ | 2.18 | Jack Powell | 138.7 | NYA |
| +033+ | 2.07 | Barney Pelty | 104.3 | BAL |
| +038+ | 1.76 | Norwood Gibson | 89 | BOS |
| +039+ | 1.71 | Nick Altrock | 129.3 | CHA |
| +044+ | 1.55 | Earl Moore | 99.7 | CLE |
| +045+ | 1.52 | Casey Patten | 154 | MIN |
| +047+ | 1.47 | Sam Leever | 108 | PIT |
| +048+ | 1.41 | Jake Weimer | 119.7 | CHN |
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