| Starter | Tm | Tier | Game |
|---|---|---|---|
| Shawn Estes | COL | -4.38 | 200405230_COL_NYN |
| Victor Zambrano | TBA | -1.92 | 200405250_MIN_TBA |
| Mike Hampton | ATL | -1.49 | 200405230_LAN_ATL |
| Kyle Lohse | MIN | -1.46 | 200405250_MIN_TBA |
| Mike Maroth | DET | -1.31 | 200405250_DET_KCA |
Based on accumulated WAA for this season up to 2004-05-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.59 | Tom Glavine | 67.7 | NYN |
| +003+ | 3.2 | Brad Penny | 60 | MIA |
| +004+ | 3.11 | Randy Johnson | 70 | ARI |
| +005+ | 3.05 | Jake Peavy | 53.7 | SDN |
| +006+ | 3 | Horacio Ramirez | 59.3 | ATL |
| +011+ | 2.63 | C.C. Sabathia | 55.7 | CLE |
| +012+ | 2.62 | Carlos Zambrano | 61.3 | CHN |
| +016+ | 2.55 | Curt Schilling | 70.3 | BOS |
| +017+ | 2.54 | Livan Hernandez | 73 | WAS |
| +018+ | 2.51 | Roger Clemens | 57.3 | HOU |
| +023+ | 2.34 | Steve Trachsel | 63.7 | NYN |
| +025+ | 2.31 | Freddy Garcia | 63 | SEA |
| +024+ | 2.31 | Matt Clement | 60.3 | CHN |
| +029+ | 2.2 | Ben Sheets | 66 | MIL |
| +039+ | 1.99 | Jason Schmidt | 55 | SFN |
| +040+ | 1.98 | Mark Mulder | 66.3 | OAK |
| +048+ | 1.79 | Ryan Drese | 49.3 | TEX |
| +050+ | 1.78 | Kenny Rogers | 67.3 | TEX |
| +056+ | 1.74 | Rodrigo Lopez | 32 | BAL |
| +062+ | 1.71 | Paul Wilson | 64.7 | CIN |
| +065+ | 1.67 | Roy Oswalt | 69.7 | HOU |
| +074+ | 1.54 | Tomo Ohka | 55.3 | WAS |
| +075+ | 1.53 | Tim Hudson | 72.3 | OAK |
| +077+ | 1.51 | Tim Wakefield | 56 | BOS |
| +078+ | 1.48 | Oliver Perez | 45.7 | PIT |
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