| Starter | Tm | Tier | Game |
|---|---|---|---|
| Matt Morris | SLN | 4.78 | 200304290_NYN_SLN |
| Barry Zito | OAK | 4.5 | 200304290_OAK_CHA |
| Roy Oswalt | HOU | 4.09 | 200304290_ATL_HOU |
| Mark Buehrle | CHA | 4.01 | 200304300_OAK_CHA |
| Al Leiter | NYN | 3.65 | 200304290_NYN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Hampton | ATL | -3.32 | 200304300_ATL_HOU |
| Ryan Dempster | CIN | -3.3 | 200304300_CIN_COL |
| Ryan Drese | TEX | -2.25 | 200304300_TEX_TOR |
| Jason Jennings | COL | -1.8 | 200304290_CIN_COL |
| Steve Parris | TBA | -1.58 | 200305010_TBA_MIN |
Based on accumulated WAA for this season up to 2003-05-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.86 | Mike Mussina | 45 | NYA |
| +002+ | 2.8 | Runelvys Hernandez | 39.7 | KCA |
| +003+ | 2.72 | Mark Prior | 43 | CHN |
| +004+ | 2.68 | Shawn Chacon | 34.7 | COL |
| +005+ | 2.65 | Esteban Loaiza | 36 | CHA |
| +008+ | 2.31 | Woody Williams | 33 | SLN |
| +009+ | 2.27 | Zach Day | 41.7 | WAS |
| +014+ | 2.05 | Jason Schmidt | 35.7 | SFN |
| +016+ | 1.94 | Scot Shields | 23.3 | ANA |
| +019+ | 1.85 | Jeff Suppan | 33.3 | PIT |
| +022+ | 1.73 | Damian Moss | 36.7 | SFN |
| +026+ | 1.66 | Brett Myers | 32.7 | PHI |
| +027+ | 1.65 | Javier Vazquez | 39.7 | WAS |
| +029+ | 1.63 | Barry Zito | 41 | OAK |
| +034+ | 1.55 | Matt Morris | 42.7 | SLN |
| +036+ | 1.52 | Roger Clemens | 40 | NYA |
| +039+ | 1.48 | Jason Johnson | 29.7 | BAL |
| +040+ | 1.47 | Kerry Wood | 39 | CHN |
| +041+ | 1.46 | Vicente Padilla | 41 | PHI |
| +045+ | 1.42 | David Wells | 39 | NYA |
| +049+ | 1.39 | Mark Redman | 39.7 | MIA |
| +054+ | 1.3 | Gil Meche | 32 | SEA |
| +056+ | 1.29 | Kip Wells | 38.3 | PIT |
| +058+ | 1.28 | Kris Benson | 40.3 | PIT |
| +059+ | 1.28 | Carlos Zambrano | 31 | CHN |
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