| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Oswalt | HOU | 5.98 | 200304130_SLN_HOU |
| Mark Buehrle | CHA | 5.84 | 200304150_KCA_CHA |
| Barry Zito | OAK | 4.68 | 200304130_OAK_ANA |
| Tom Glavine | NYN | 3.54 | 200304150_NYN_PIT |
| Jarrod Washburn | ANA | 2.68 | 200304150_ANA_TEX |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jimmy Anderson | CIN | -4.22 | 200304140_CIN_CHN |
| Victor Zambrano | TBA | -1.58 | 200304130_TBA_NYA |
| Shawn Chacon | COL | -1.55 | 200304150_COL_ARI |
| Darrell May | KCA | -1.02 | 200304130_KCA_CLE |
| Todd Ritchie | MIL | -1.01 | 200304140_SLN_MIL |
Based on accumulated WAA for this season up to 2003-04-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 1.93 | Mark Buehrle | 28.7 | CHA |
| +002+ | 1.81 | Runelvys Hernandez | 20 | KCA |
| +004+ | 1.71 | Tony Armas | 25 | WAS |
| +005+ | 1.67 | Kris Benson | 20.3 | PIT |
| +006+ | 1.5 | David Wells | 17 | NYA |
| +007+ | 1.42 | Shawn Chacon | 20.7 | COL |
| +009+ | 1.41 | Kirk Rueter | 18.7 | SFN |
| +010+ | 1.38 | Mike Mussina | 22 | NYA |
| +011+ | 1.33 | Ricardo Rodriguez | 20 | CLE |
| +014+ | 1.32 | Mark Prior | 21 | CHN |
| +013+ | 1.32 | Kyle Lohse | 21.3 | MIN |
| +015+ | 1.29 | Al Leiter | 18.7 | NYN |
| XXXXX | 1.23 | Woody Williams | 12.7 | SLN |
| XXXXX | 1.23 | Brian Lawrence | 21 | SDN |
| XXXXX | 1.1 | Esteban Loaiza | 14.7 | CHA |
| XXXXX | 1.09 | Hideo Nomo | 28.7 | LAN |
| XXXXX | 0.97 | Roger Clemens | 20 | NYA |
| XXXXX | 0.95 | Jeff Suppan | 13.3 | PIT |
| XXXXX | 0.93 | Zach Day | 17.3 | WAS |
| XXXXX | 0.87 | Paul Wilson | 12.7 | CIN |
| XXXXX | 0.85 | Javier Vazquez | 18.7 | WAS |
| XXXXX | 0.82 | Pete Walker | 12.3 | TOR |
| XXXXX | 0.81 | Nelson Cruz | 16.7 | COL |
| XXXXX | 0.79 | Kerry Wood | 20 | CHN |
| XXXXX | 0.76 | Tom Glavine | 21.7 | NYN |
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