| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johan Santana | NYN | 9.93 | 200905060_PHI_NYN |
| Dan Haren | ARI | 9.72 | 200905070_ARI_SDN |
| Jake Peavy | SDN | 4.2 | 200905060_ARI_SDN |
| Roy Halladay | TOR | 3.91 | 200905060_TOR_ANA |
| Roy Oswalt | HOU | 3.88 | 200905050_HOU_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Vicente Padilla | TEX | -3.79 | 200905050_TEX_SEA |
| Livan Hernandez | NYN | -3.29 | 200905050_NYN_ATL |
| Sidney Ponson | KCA | -3.2 | 200905060_SEA_KCA |
| Daniel Cabrera | WAS | -2.75 | 200905060_WAS_LAN |
| Mark Hendrickson | BAL | -2.54 | 200905060_MIN_BAL |
Based on accumulated WAA for this season up to 2009-05-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.3 | Zack Greinke | 45 | KCA |
| +003+ | 3.38 | Johan Santana | 39.7 | NYN |
| +005+ | 3.05 | Dan Haren | 49 | ARI |
| +008+ | 2.41 | Jair Jurrjens | 40.3 | ATL |
| +010+ | 2.26 | Chad Billingsley | 40.7 | LAN |
| +011+ | 2.15 | Johnny Cueto | 32.7 | CIN |
| +014+ | 2.01 | Wandy Rodriguez | 37 | HOU |
| +018+ | 1.84 | Kevin Millwood | 45.3 | TEX |
| +019+ | 1.84 | Erik Bedard | 38 | SEA |
| +020+ | 1.83 | Jered Weaver | 40.7 | ANA |
| +021+ | 1.81 | Josh Johnson | 42 | MIA |
| +023+ | 1.77 | Zach Duke | 42 | PIT |
| +024+ | 1.75 | Mark Buehrle | 38 | CHA |
| +029+ | 1.71 | Brian Bannister | 24.3 | KCA |
| +028+ | 1.71 | Matt Cain | 38 | SFN |
| +031+ | 1.66 | Jarrod Washburn | 40.3 | SEA |
| +032+ | 1.63 | Randy Wolf | 42.7 | LAN |
| +035+ | 1.57 | Edwin Jackson | 38 | DET |
| +040+ | 1.49 | Dallas Braden | 36 | OAK |
| +041+ | 1.49 | Tim Wakefield | 40 | BOS |
| +042+ | 1.48 | Yovani Gallardo | 41.7 | MIL |
| +043+ | 1.48 | Paul Maholm | 39.3 | PIT |
| +054+ | 1.34 | Aaron Harang | 39 | CIN |
| +056+ | 1.33 | Tim Lincecum | 38.3 | SFN |
| +055+ | 1.33 | Roy Halladay | 52 | TOR |
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