| Starter | Tm | Tier | Game |
|---|---|---|---|
| Esteban Loaiza | CHA | 6.46 | 200308200_ANA_CHA |
| Kevin Brown | LAN | 6.41 | 200308190_WAS_LAN |
| Mark Prior | CHN | 4.03 | 200308200_CHN_HOU |
| Mark Mulder | OAK | 3.44 | 200308190_OAK_BOS |
| Brandon Webb | ARI | 3.34 | 200308190_CIN_ARI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jeff Weaver | NYA | -3 | 200308180_KCA_NYA |
| Ismael Valdez | TEX | -2.6 | 200308180_TEX_DET |
| Aaron Heilman | NYN | -1.9 | 200308200_NYN_SDN |
| Shane Reynolds | ATL | -1.79 | 200308200_ATL_SFN |
| Mike Maroth | DET | -1.6 | 200308190_TEX_DET |
Based on accumulated WAA for this season up to 2003-08-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.91 | Tim Hudson | 196.3 | OAK |
| +006+ | 8.01 | Kevin Brown | 164 | LAN |
| +007+ | 7.54 | Esteban Loaiza | 175.7 | CHA |
| +009+ | 7.02 | Hideo Nomo | 183.3 | LAN |
| +010+ | 6.99 | Jason Schmidt | 155.3 | SFN |
| +011+ | 6.8 | Mark Prior | 159.7 | CHN |
| +012+ | 6.76 | Pedro Martinez | 143.7 | BOS |
| +016+ | 6.25 | Livan Hernandez | 185 | WAS |
| +018+ | 6.15 | Brandon Webb | 140.7 | ARI |
| +022+ | 5.61 | Mark Mulder | 186.7 | OAK |
| +023+ | 5.6 | Curt Schilling | 127 | ARI |
| +025+ | 5.4 | Scot Shields | 106.7 | ANA |
| +026+ | 5.31 | Mike Mussina | 170 | NYA |
| +030+ | 5.07 | Carlos Zambrano | 165.3 | CHN |
| +034+ | 4.99 | Barry Zito | 178.7 | OAK |
| +037+ | 4.68 | Miguel Batista | 153 | ARI |
| +043+ | 4.31 | Roy Halladay | 201.7 | TOR |
| +049+ | 4.06 | Javier Vazquez | 178 | WAS |
| +052+ | 4.02 | Johan Santana | 120.3 | MIN |
| +064+ | 3.55 | Mark Redman | 147.7 | MIA |
| +066+ | 3.54 | Russ Ortiz | 172.7 | ATL |
| +074+ | 3.19 | Dontrelle Willis | 113.3 | MIA |
| +080+ | 3.06 | Joel Pineiro | 166 | SEA |
| +081+ | 3.05 | Woody Williams | 172.3 | SLN |
| +083+ | 3.04 | Roger Clemens | 170.3 | NYA |
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