| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mark Redman | COL | -6.03 | 200805060_SLN_COL |
| Brett Tomko | KCA | -2.71 | 200805050_ANA_KCA |
| Adam Eaton | PHI | -1.86 | 200805060_PHI_ARI |
| Odalis Perez | WAS | -1.47 | 200805070_WAS_HOU |
| Dave Bush | MIL | -1.34 | 200805070_MIL_MIA |
Based on accumulated WAA for this season up to 2008-05-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.5 | Cliff Lee | 44.7 | CLE |
| +003+ | 3.15 | Edinson Volquez | 42.3 | CIN |
| +004+ | 2.9 | Carlos Zambrano | 55 | CHN |
| +005+ | 2.84 | Zack Greinke | 50 | KCA |
| +007+ | 2.63 | Tim Lincecum | 42.3 | SFN |
| +009+ | 2.5 | Ervin Santana | 49 | ANA |
| +012+ | 2.26 | Adam Wainwright | 52 | SLN |
| +014+ | 2.21 | Scott Olsen | 48.7 | MIA |
| +019+ | 2.01 | Jake Peavy | 48.7 | SDN |
| +023+ | 1.81 | Aaron Cook | 48.7 | COL |
| +024+ | 1.81 | Joe Saunders | 48.3 | ANA |
| +025+ | 1.8 | Brandon Webb | 47 | ARI |
| +027+ | 1.75 | Shaun Marcum | 48.7 | TOR |
| +031+ | 1.68 | Daisuke Matsuzaka | 40.7 | BOS |
| +033+ | 1.67 | Erik Bedard | 31.7 | SEA |
| +036+ | 1.66 | Ben Sheets | 39.3 | MIL |
| +040+ | 1.56 | Gavin Floyd | 39.7 | CHA |
| +044+ | 1.5 | Aaron Harang | 55.3 | CIN |
| +043+ | 1.5 | Roy Halladay | 57 | TOR |
| +046+ | 1.49 | Tim Hudson | 49.7 | ATL |
| +050+ | 1.44 | Greg Smith | 39 | OAK |
| +051+ | 1.42 | Felix Hernandez | 50.3 | SEA |
| +052+ | 1.4 | Vicente Padilla | 50.7 | TEX |
| +053+ | 1.39 | Jair Jurrjens | 44.3 | ATL |
| +054+ | 1.37 | John Smoltz | 27 | ATL |
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