| Starter | Tm | Tier | Game |
|---|---|---|---|
| Casey Fossum | ARI | -5.78 | 200409232_ARI_COL |
| Shawn Estes | COL | -3.42 | 200409220_ARI_COL |
| Ryan Vogelsong | PIT | -2.59 | 200409240_CIN_PIT |
| Jose Contreras | CHA | -2.56 | 200409230_KCA_CHA |
| Cliff Lee | CLE | -2.31 | 200409230_MIN_CLE |
Based on accumulated WAA for this season up to 2004-09-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.82 | Randy Johnson | 230.7 | ARI |
| +003+ | 9.38 | Johan Santana | 223 | MIN |
| +006+ | 8.31 | Ben Sheets | 221 | MIL |
| +007+ | 8.3 | Carlos Zambrano | 197.7 | CHN |
| +010+ | 8 | Jake Peavy | 154.3 | SDN |
| +013+ | 7.76 | Roger Clemens | 208.3 | HOU |
| +024+ | 6.36 | Jason Schmidt | 213 | SFN |
| +026+ | 6.09 | Curt Schilling | 219.7 | BOS |
| +027+ | 6.03 | Oliver Perez | 183.3 | PIT |
| +039+ | 5.06 | Jake Westbrook | 201.7 | CLE |
| +040+ | 5.01 | Doug Davis | 201.3 | MIL |
| +042+ | 4.91 | Odalis Perez | 188.3 | LAN |
| +043+ | 4.9 | Jaret Wright | 184 | ATL |
| +045+ | 4.8 | Al Leiter | 160.7 | NYN |
| +048+ | 4.67 | Roy Oswalt | 223 | HOU |
| +050+ | 4.51 | Livan Hernandez | 240 | WAS |
| +053+ | 4.47 | Brad Penny | 143 | TOT |
| +057+ | 4.37 | Tim Hudson | 175.7 | OAK |
| +060+ | 4.32 | Tom Glavine | 200.3 | NYN |
| +071+ | 3.85 | Brandon Webb | 196 | ARI |
| +077+ | 3.64 | Joe Kennedy | 148.3 | COL |
| +078+ | 3.62 | David Wells | 182.7 | SDN |
| +082+ | 3.46 | Greg Maddux | 201.7 | CHN |
| +083+ | 3.4 | Pedro Martinez | 212 | BOS |
| +085+ | 3.33 | Ryan Drese | 201.3 | TEX |
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