| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johan Santana | NYN | 9.58 | 200904290_MIA_NYN |
| Chad Billingsley | LAN | 5.37 | 200904280_LAN_SFN |
| Zack Greinke | KCA | 5.18 | 200904290_TOR_KCA |
| Erik Bedard | SEA | 3.08 | 200904290_SEA_CHA |
| Tim Lincecum | SFN | 2.66 | 200904290_LAN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Adam Eaton | BAL | -4.32 | 200904280_ANA_BAL |
| Brian Burres | TOR | -4.18 | 200904300_TOR_KCA |
| Vicente Padilla | TEX | -3.83 | 200904300_OAK_TEX |
| Livan Hernandez | NYN | -3.23 | 200904280_MIA_NYN |
| Daniel Cabrera | WAS | -2.74 | 200904300_SLN_WAS |
Based on accumulated WAA for this season up to 2009-04-30.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.43 | Zack Greinke | 36 | KCA |
| +002+ | 2.68 | Johan Santana | 32.7 | NYN |
| +004+ | 2.39 | Dan Haren | 35 | ARI |
| +006+ | 2.15 | Kevin Millwood | 38 | TEX |
| +007+ | 2.13 | Wandy Rodriguez | 32 | HOU |
| +009+ | 2.11 | Jair Jurrjens | 31.3 | ATL |
| +013+ | 1.99 | Chad Billingsley | 33.7 | LAN |
| +014+ | 1.88 | Kyle Lohse | 32 | SLN |
| +015+ | 1.79 | Edwin Jackson | 32 | DET |
| +016+ | 1.79 | Tim Wakefield | 29 | BOS |
| +018+ | 1.73 | Felix Hernandez | 34 | SEA |
| +023+ | 1.59 | Armando Galarraga | 24.3 | DET |
| +025+ | 1.57 | Dallas Braden | 30 | OAK |
| +026+ | 1.51 | Josh Johnson | 34.7 | MIA |
| +029+ | 1.5 | Matt Cain | 26 | SFN |
| +027+ | 1.5 | Zach Duke | 29.7 | PIT |
| +032+ | 1.43 | Glen Perkins | 29 | MIN |
| +034+ | 1.41 | Erik Bedard | 31 | SEA |
| +035+ | 1.38 | Yovani Gallardo | 34.7 | MIL |
| +038+ | 1.37 | Johnny Cueto | 24.7 | CIN |
| +043+ | 1.29 | Jered Weaver | 25.7 | ANA |
| +044+ | 1.27 | Chris Volstad | 30.3 | MIA |
| XXXXX | 1.23 | Doug Davis | 34 | ARI |
| XXXXX | 1.18 | Brian Bannister | 13 | KCA |
| XXXXX | 1.18 | Adam Wainwright | 29.3 | SLN |
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