| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mark Buehrle | CHA | 4.01 | 200304300_OAK_CHA |
| Mike Mussina | NYA | 3.47 | 200305010_SEA_NYA |
| Tom Glavine | NYN | 3.42 | 200305020_NYN_MIL |
| Jamie Moyer | SEA | 3.34 | 200304300_SEA_NYA |
| Woody Williams | SLN | 2.75 | 200304300_NYN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Hampton | ATL | -3.32 | 200304300_ATL_HOU |
| Ryan Dempster | CIN | -3.3 | 200304300_CIN_COL |
| Glendon Rusch | MIL | -2.97 | 200305020_NYN_MIL |
| Rick Helling | BAL | -2.42 | 200305020_KCA_BAL |
| Ryan Drese | TEX | -2.25 | 200304300_TEX_TOR |
Based on accumulated WAA for this season up to 2003-05-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.84 | Mike Mussina | 45 | NYA |
| +002+ | 2.78 | Runelvys Hernandez | 39.7 | KCA |
| +004+ | 2.7 | Mark Prior | 43 | CHN |
| +008+ | 2.3 | Woody Williams | 33 | SLN |
| +010+ | 2.27 | Zach Day | 41.7 | WAS |
| +012+ | 2.04 | Jason Schmidt | 35.7 | SFN |
| +014+ | 1.96 | Esteban Loaiza | 39.7 | CHA |
| +015+ | 1.94 | Scot Shields | 23.3 | ANA |
| +016+ | 1.93 | Shawn Chacon | 39.7 | COL |
| +017+ | 1.83 | Jeff Suppan | 33.3 | PIT |
| +027+ | 1.72 | Damian Moss | 36.7 | SFN |
| +028+ | 1.69 | David Wells | 46 | NYA |
| +029+ | 1.65 | Javier Vazquez | 39.7 | WAS |
| +030+ | 1.64 | Brett Myers | 32.7 | PHI |
| +031+ | 1.63 | Barry Zito | 41 | OAK |
| +036+ | 1.54 | Matt Morris | 42.7 | SLN |
| +040+ | 1.5 | Roger Clemens | 40 | NYA |
| +041+ | 1.47 | Jason Johnson | 29.7 | BAL |
| +043+ | 1.45 | Kerry Wood | 39 | CHN |
| +046+ | 1.43 | Vicente Padilla | 41 | PHI |
| +052+ | 1.39 | Mark Redman | 39.7 | MIA |
| +055+ | 1.3 | Brandon Webb | 15 | ARI |
| +056+ | 1.29 | Gil Meche | 32 | SEA |
| +057+ | 1.28 | Kip Wells | 38.3 | PIT |
| +061+ | 1.27 | Carlos Zambrano | 31 | CHN |
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