| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Mussina | NYA | 4.07 | 200305070_NYA_SEA |
| Mark Buehrle | CHA | 3.26 | 200305060_CHA_OAK |
| Mark Mulder | OAK | 2.81 | 200305060_CHA_OAK |
| Woody Williams | SLN | 2.79 | 200305050_SLN_CIN |
| Jamie Moyer | SEA | 2.45 | 200305060_NYA_SEA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Glendon Rusch | MIL | -3.1 | 200305070_MIL_CHN |
| Pedro Astacio | NYN | -2.78 | 200305060_LAN_NYN |
| Mike Hampton | ATL | -2.33 | 200305060_COL_ATL |
| Carl Pavano | MIA | -1.69 | 200305060_SFN_MIA |
| Tanyon Sturtze | TOR | -1.64 | 200305070_TOR_TEX |
Based on accumulated WAA for this season up to 2003-05-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.23 | Mike Mussina | 53 | NYA |
| +003+ | 3.08 | Mark Prior | 49 | CHN |
| +006+ | 2.87 | Runelvys Hernandez | 46.7 | KCA |
| +008+ | 2.42 | Barry Zito | 49 | OAK |
| +011+ | 2.29 | Woody Williams | 41 | SLN |
| +013+ | 2.22 | Jason Schmidt | 41.7 | SFN |
| +014+ | 2.22 | Esteban Loaiza | 45.7 | CHA |
| +015+ | 2.22 | Scot Shields | 30 | ANA |
| +018+ | 2.11 | Damian Moss | 42.7 | SFN |
| +019+ | 2.1 | Mark Mulder | 52 | OAK |
| +020+ | 2.09 | Jeff Suppan | 39.3 | PIT |
| +021+ | 2.07 | Matt Morris | 51.7 | SLN |
| +022+ | 2.04 | Brett Myers | 38.7 | PHI |
| +024+ | 2 | Roger Clemens | 47 | NYA |
| +026+ | 1.94 | Shawn Chacon | 39.7 | COL |
| +027+ | 1.91 | Pedro Martinez | 49.3 | BOS |
| +032+ | 1.82 | Miguel Batista | 41.3 | ARI |
| +037+ | 1.69 | David Wells | 46 | NYA |
| +039+ | 1.65 | Jason Johnson | 35.7 | BAL |
| +040+ | 1.64 | Gil Meche | 37 | SEA |
| +045+ | 1.54 | Zach Day | 46.7 | WAS |
| +048+ | 1.47 | Nate Cornejo | 34.7 | DET |
| +052+ | 1.44 | Kevin Brown | 44.3 | LAN |
| +053+ | 1.43 | Hideo Nomo | 57 | LAN |
| +055+ | 1.41 | Kerry Wood | 45 | CHN |
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