| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cy Young | BOS | 8.23 | 190605020_MIN_BOS |
| Frank Owen | CHA | 4.79 | 190605020_CHA_DET |
| Joe McGinnity | SFN | 3.59 | 190605020_SFN_ATL |
| Eddie Plank | OAK | 3.47 | 190605010_MIN_OAK |
| Irv Young | ATL | 0.86 | 190605010_SFN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vic Willis | PIT | -2.29 | 190605020_PIT_CIN |
| Big Jeff Pfeffer | ATL | -1.46 | 190605030_SFN_ATL |
| Carl Druhot | CIN | -1.22 | 190605010_PIT_CIN |
| Jimmy Dygert | OAK | -1.17 | 190605030_OAK_NYA |
| Fred Glade | BAL | -0.58 | 190605020_BAL_CLE |
Based on accumulated WAA for this season up to 1906-05-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.11 | Johnny Lush | 45 | PHI |
| +003+ | 1.86 | Carl Lundgren | 44 | CHN |
| +004+ | 1.72 | Irv Young | 54.7 | ATL |
| +005+ | 1.57 | Jack Taylor | 40 | SLN |
| +006+ | 1.55 | Joe McGinnity | 51.3 | SFN |
| +007+ | 1.52 | Deacon Phillippe | 29 | PIT |
| +008+ | 1.44 | Ed Siever | 28 | DET |
| +009+ | 1.38 | Mordecai Brown | 34 | CHN |
| +010+ | 1.35 | Ed Smith | 16.7 | BAL |
| +011+ | 1.31 | Jesse Tannehill | 25 | BOS |
| +013+ | 1.29 | Fred Beebe | 19 | CHN |
| +014+ | 1.26 | Bill Donovan | 26 | DET |
| XXXXX | 1.23 | Nick Altrock | 40 | CHA |
| XXXXX | 1.17 | Casey Patten | 24 | MIN |
| XXXXX | 1.17 | Jake Weimer | 42.3 | CIN |
| XXXXX | 1.13 | Bill Duggleby | 39 | PHI |
| XXXXX | 1.09 | Bill Bernhard | 27 | CLE |
| XXXXX | 1.01 | Addie Joss | 26 | CLE |
| XXXXX | 1.01 | Bill Hogg | 23.7 | NYA |
| XXXXX | 0.96 | Rube Waddell | 40 | OAK |
| XXXXX | 0.96 | Elmer Stricklett | 39 | LAN |
| XXXXX | 0.91 | Hooks Wiltse | 28.3 | SFN |
| XXXXX | 0.75 | Barney Pelty | 26 | BAL |
| XXXXX | 0.64 | Red Ames | 46 | SFN |
| XXXXX | 0.63 | Lefty Leifield | 19 | PIT |
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