| Starter | Tm | Tier | Game |
|---|---|---|---|
| Cliff Lee | CLE | 5.59 | 200807300_DET_CLE |
| Dan Haren | ARI | 5.27 | 200807300_ARI_SDN |
| Justin Duchscherer | OAK | 3.95 | 200808010_OAK_BOS |
| Tim Lincecum | SFN | 3.39 | 200808010_SFN_SDN |
| Rich Harden | CHN | 2.97 | 200807310_CHN_MIL |
Based on accumulated WAA for this season up to 2008-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 5.83 | Cliff Lee | 146.7 | CLE |
| +005+ | 5.64 | Dan Haren | 147.7 | ARI |
| +006+ | 5.61 | Justin Duchscherer | 127.7 | OAK |
| +009+ | 5.41 | Roy Halladay | 167.3 | TOR |
| +010+ | 5.38 | Tim Lincecum | 149.7 | SFN |
| +011+ | 5.12 | Rich Harden | 101.3 | TOT |
| +012+ | 4.79 | Edinson Volquez | 133 | CIN |
| +014+ | 4.67 | Carlos Zambrano | 141.7 | CHN |
| +018+ | 4.43 | Ryan Dempster | 145.7 | CHN |
| +019+ | 4.38 | Brandon Webb | 154 | ARI |
| +021+ | 4.35 | Johan Santana | 147.7 | NYN |
| +027+ | 4.03 | Jake Peavy | 114.7 | SDN |
| +029+ | 3.98 | Joba Chamberlain | 84.3 | NYA |
| +031+ | 3.89 | Chad Billingsley | 138.7 | LAN |
| +036+ | 3.8 | Felix Hernandez | 131 | SEA |
| +039+ | 3.75 | Joe Saunders | 139.7 | ANA |
| +041+ | 3.7 | Jair Jurrjens | 132.3 | ATL |
| +047+ | 3.59 | Ben Sheets | 140.3 | MIL |
| +049+ | 3.55 | Jon Lester | 139.3 | BOS |
| +050+ | 3.54 | C.C. Sabathia | 162 | TOT |
| +051+ | 3.53 | Jorge Campillo | 101 | ATL |
| +057+ | 3.28 | Cole Hamels | 160.3 | PHI |
| +062+ | 3.14 | Scott Kazmir | 99.7 | TBA |
| +067+ | 3.1 | John Lackey | 101.3 | ANA |
| +068+ | 3.09 | John Danks | 130.7 | CHA |
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