| Starter | Tm | Tier | Game |
|---|---|---|---|
| Shawn Estes | COL | -4.11 | 200409040_COL_SDN |
| Sidney Ponson | BAL | -2.94 | 200409040_BAL_NYA |
| Ryan Vogelsong | PIT | -2.88 | 200409060_MIL_PIT |
| Kyle Lohse | MIN | -2.21 | 200409050_KCA_MIN |
| Jason Davis | CLE | -1.81 | 200409040_ANA_CLE |
Based on accumulated WAA for this season up to 2004-09-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.28 | Randy Johnson | 208.7 | ARI |
| +010+ | 6.76 | Ben Sheets | 193 | MIL |
| +012+ | 6.65 | Jake Peavy | 126 | SDN |
| +014+ | 6.61 | Johan Santana | 195 | MIN |
| +015+ | 6.57 | Carlos Zambrano | 176.3 | CHN |
| +018+ | 6.29 | Jason Schmidt | 182.7 | SFN |
| +021+ | 6.08 | Carl Pavano | 186.7 | MIA |
| +026+ | 5.38 | Oliver Perez | 162.7 | PIT |
| +029+ | 5.28 | Tom Glavine | 177.3 | NYN |
| +031+ | 5.03 | Roger Clemens | 179 | HOU |
| +032+ | 5.02 | Tim Hudson | 149.7 | OAK |
| +033+ | 4.99 | Odalis Perez | 165.3 | LAN |
| +034+ | 4.95 | Curt Schilling | 197 | BOS |
| +038+ | 4.81 | Al Leiter | 144.7 | NYN |
| +043+ | 4.68 | Jaret Wright | 158 | ATL |
| +044+ | 4.65 | Livan Hernandez | 216.7 | WAS |
| +049+ | 4.42 | Jake Westbrook | 181.7 | CLE |
| +052+ | 4.29 | Chris Carpenter | 173.7 | SLN |
| +054+ | 4.25 | Roy Oswalt | 195.7 | HOU |
| +057+ | 4.02 | Matt Clement | 170 | CHN |
| +063+ | 3.98 | Brandon Webb | 177.7 | ARI |
| +061+ | 3.98 | Jason Marquis | 172.7 | SLN |
| +060+ | 3.98 | Pedro Martinez | 187.7 | BOS |
| +075+ | 3.44 | Brad Radke | 190.7 | MIN |
| +081+ | 3.32 | Russ Ortiz | 181.3 | ATL |
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