| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johan Santana | NYN | 9.46 | 200904240_WAS_NYN |
| Chad Billingsley | LAN | 4.47 | 200904230_LAN_HOU |
| Zack Greinke | KCA | 3.92 | 200904240_DET_KCA |
| Erik Bedard | SEA | 2.88 | 200904240_SEA_ANA |
| Derek Lowe | ATL | 2.74 | 200904250_ATL_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Adam Eaton | BAL | -5.83 | 200904230_CHA_BAL |
| Vicente Padilla | TEX | -4.21 | 200904240_TEX_BAL |
| Brian Burres | TOR | -3.1 | 200904250_TOR_CHA |
| Daniel Cabrera | WAS | -2.95 | 200904250_WAS_NYN |
| Livan Hernandez | NYN | -2.34 | 200904230_NYN_SLN |
Based on accumulated WAA for this season up to 2009-04-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.15 | Zack Greinke | 29 | KCA |
| +003+ | 2.4 | Johan Santana | 25.7 | NYN |
| +006+ | 1.93 | Dan Haren | 26 | ARI |
| +007+ | 1.92 | Jair Jurrjens | 25.3 | ATL |
| +008+ | 1.76 | Glen Perkins | 24 | MIN |
| +009+ | 1.74 | Kevin Millwood | 30 | TEX |
| +010+ | 1.66 | Aaron Harang | 27 | CIN |
| +011+ | 1.65 | John Danks | 19 | CHA |
| +013+ | 1.62 | Chad Billingsley | 26.3 | LAN |
| +014+ | 1.61 | Wandy Rodriguez | 25 | HOU |
| +015+ | 1.59 | Paul Maholm | 26.7 | PIT |
| +017+ | 1.55 | Josh Johnson | 28.7 | MIA |
| +020+ | 1.5 | Erik Bedard | 26 | SEA |
| +021+ | 1.49 | Zach Duke | 29.7 | PIT |
| +023+ | 1.39 | Jarrod Washburn | 21 | SEA |
| +029+ | 1.29 | Gil Meche | 27.3 | KCA |
| +031+ | 1.26 | Kyle Lohse | 26 | SLN |
| XXXXX | 1.19 | Edwin Jackson | 26 | DET |
| XXXXX | 1.19 | Armando Galarraga | 18.3 | DET |
| XXXXX | 1.14 | Javier Vazquez | 24 | ATL |
| XXXXX | 1.08 | Tim Wakefield | 22 | BOS |
| XXXXX | 1.05 | Derek Lowe | 29 | ATL |
| XXXXX | 1.05 | Dallas Braden | 25 | OAK |
| XXXXX | 1.03 | Matt Cain | 19 | SFN |
| XXXXX | 0.99 | Braden Looper | 17 | MIL |
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