| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jake Peavy | SDN | 6.29 | 200904160_SDN_NYN |
| Dan Haren | ARI | 6.24 | 200904170_ARI_SFN |
| CC Sabathia | NYA | 5.82 | 200904160_CLE_NYA |
| Roy Halladay | TOR | 4.11 | 200904160_TOR_MIN |
| Derek Lowe | ATL | 3.61 | 200904150_MIA_ATL |
Based on accumulated WAA for this season up to 2009-04-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 1.92 | Paul Maholm | 20.7 | PIT |
| +003+ | 1.53 | Zach Duke | 15.3 | PIT |
| +005+ | 1.49 | Josh Johnson | 15.7 | MIA |
| +007+ | 1.36 | Kevin Millwood | 14 | TEX |
| +008+ | 1.34 | Aaron Harang | 14 | CIN |
| +011+ | 1.3 | Armando Galarraga | 13.3 | DET |
| +012+ | 1.26 | Joe Saunders | 20.7 | ANA |
| XXXXX | 1.24 | Dan Haren | 19 | ARI |
| XXXXX | 1.22 | Zack Greinke | 11 | KCA |
| XXXXX | 1.21 | Johan Santana | 12.7 | NYN |
| XXXXX | 1.16 | Gil Meche | 20 | KCA |
| XXXXX | 1.13 | John Danks | 12 | CHA |
| XXXXX | 1.12 | Jarrod Washburn | 14 | SEA |
| XXXXX | 1.12 | Glen Perkins | 16 | MIN |
| XXXXX | 1.11 | Jair Jurrjens | 17.7 | ATL |
| XXXXX | 1.1 | Chris Carpenter | 10 | SLN |
| XXXXX | 0.96 | Jason Marquis | 14 | COL |
| XXXXX | 0.95 | Matt Garza | 14 | TBA |
| XXXXX | 0.93 | Clayton Kershaw | 12 | LAN |
| XXXXX | 0.89 | Matt Cain | 13 | SFN |
| XXXXX | 0.88 | Chris Volstad | 12 | MIA |
| XXXXX | 0.84 | Chad Billingsley | 13 | LAN |
| XXXXX | 0.83 | Erik Bedard | 13.3 | SEA |
| XXXXX | 0.81 | Roy Halladay | 21 | TOR |
| XXXXX | 0.79 | Andy Pettitte | 14.3 | NYA |
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