| Starter | Tm | Tier | Game |
|---|---|---|---|
| Colby Lewis | TEX | -8.57 | 200309010_KCA_TEX |
| Cory Lidle | TOR | -5.08 | 200308300_TOR_CLE |
| Brett Tomko | SLN | -2.46 | 200308300_SLN_CIN |
| Shawn Estes | CHN | -2.41 | 200308300_MIL_CHN |
| Mike Maroth | DET | -1.76 | 200308300_CHA_DET |
Based on accumulated WAA for this season up to 2003-09-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.94 | Tim Hudson | 210.3 | OAK |
| +004+ | 9.28 | Jason Schmidt | 179.3 | SFN |
| +005+ | 8.93 | Esteban Loaiza | 190.7 | CHA |
| +007+ | 8.76 | Kevin Brown | 179 | LAN |
| +008+ | 8.32 | Mark Prior | 175.7 | CHN |
| +011+ | 7.15 | Hideo Nomo | 200.3 | LAN |
| +012+ | 7.06 | Livan Hernandez | 200 | WAS |
| +016+ | 6.54 | Pedro Martinez | 153.7 | BOS |
| +018+ | 6.38 | Carlos Zambrano | 181.3 | CHN |
| +019+ | 6.36 | Brandon Webb | 150.7 | ARI |
| +022+ | 6.08 | Curt Schilling | 150 | ARI |
| +026+ | 5.91 | Javier Vazquez | 195 | WAS |
| +028+ | 5.31 | Miguel Batista | 165 | ARI |
| +034+ | 5.07 | Johan Santana | 132.3 | MIN |
| +039+ | 4.95 | Mike Mussina | 184.3 | NYA |
| +041+ | 4.9 | Barry Zito | 192 | OAK |
| +047+ | 4.57 | Roy Halladay | 224 | TOR |
| +049+ | 4.52 | Scot Shields | 116.3 | ANA |
| +057+ | 4.09 | Sidney Ponson | 192 | TOT |
| +070+ | 3.55 | Darrell May | 180.7 | KCA |
| +072+ | 3.52 | Jamie Moyer | 178 | SEA |
| +073+ | 3.51 | Mark Redman | 160.7 | MIA |
| +079+ | 3.37 | Kazuhisa Ishii | 126 | LAN |
| +078+ | 3.37 | Kevin Millwood | 185.7 | PHI |
| +081+ | 3.27 | Woody Williams | 190.3 | SLN |
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