| Starter | Tm | Tier | Game |
|---|---|---|---|
| Casey Fossum | ARI | -6.62 | 200408180_PIT_ARI |
| Scott Elarton | CLE | -5.42 | 200408180_CLE_TEX |
| Jason Jennings | COL | -5.11 | 200408170_NYN_COL |
| Ryan Vogelsong | PIT | -3.47 | 200408170_PIT_ARI |
| Rocky Biddle | WAS | -2.52 | 200408181_WAS_SFN |
Based on accumulated WAA for this season up to 2004-08-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.86 | Jason Schmidt | 174.7 | SFN |
| +006+ | 6.72 | Randy Johnson | 178.7 | ARI |
| +012+ | 6 | Ben Sheets | 171 | MIL |
| +013+ | 5.93 | Jake Peavy | 108 | SDN |
| +014+ | 5.88 | Odalis Perez | 150.3 | LAN |
| +015+ | 5.83 | Carlos Zambrano | 156 | CHN |
| +020+ | 5.6 | Al Leiter | 127 | NYN |
| +019+ | 5.6 | Roger Clemens | 159.3 | HOU |
| +021+ | 5.57 | Carl Pavano | 166.7 | MIA |
| +023+ | 5.44 | Oliver Perez | 143 | PIT |
| +036+ | 4.6 | Johan Santana | 173 | MIN |
| +037+ | 4.52 | Matt Clement | 159.7 | CHN |
| +041+ | 4.26 | Ryan Drese | 159.7 | TEX |
| +044+ | 4.18 | Roy Oswalt | 178 | HOU |
| +045+ | 4.17 | Tim Hudson | 128.3 | OAK |
| +049+ | 3.94 | Livan Hernandez | 188.3 | WAS |
| +053+ | 3.81 | Jaret Wright | 138 | ATL |
| +058+ | 3.6 | Russ Ortiz | 162.3 | ATL |
| +067+ | 3.25 | Curt Schilling | 167.7 | BOS |
| +069+ | 3.17 | Kerry Wood | 89.7 | CHN |
| +070+ | 3.06 | Jake Westbrook | 154 | CLE |
| +072+ | 3.04 | Brad Radke | 170 | MIN |
| +078+ | 2.95 | Wilson Alvarez | 101.7 | LAN |
| +080+ | 2.88 | Mark Buehrle | 178.3 | CHA |
| +082+ | 2.86 | Steve Trachsel | 155.3 | NYN |
_