| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johan Santana | MIN | 6.36 | 200409190_BAL_MIN |
| Ben Sheets | MIL | 5.83 | 200409170_MIL_HOU |
| Jake Peavy | SDN | 4.92 | 200409170_SDN_SFN |
| Carlos Zambrano | CHN | 4.6 | 200409170_CHN_CIN |
| Roger Clemens | HOU | 3.59 | 200409190_MIL_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Casey Fossum | ARI | -5.75 | 200409180_ARI_SLN |
| Hideo Nomo | LAN | -4.3 | 200409170_LAN_COL |
| Ryan Vogelsong | PIT | -3.43 | 200409191_NYN_PIT |
| Jason Jennings | COL | -3.1 | 200409190_LAN_COL |
| Jose Contreras | CHA | -2.4 | 200409180_DET_CHA |
Based on accumulated WAA for this season up to 2004-09-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.22 | Randy Johnson | 223.7 | ARI |
| +003+ | 8.89 | Johan Santana | 217 | MIN |
| +006+ | 8.31 | Ben Sheets | 215 | MIL |
| +010+ | 7.53 | Carlos Zambrano | 190.3 | CHN |
| +015+ | 7.15 | Jake Peavy | 146.3 | SDN |
| +018+ | 6.95 | Roger Clemens | 201 | HOU |
| +025+ | 5.99 | Jason Schmidt | 205.7 | SFN |
| +030+ | 5.5 | Oliver Perez | 176.3 | PIT |
| +034+ | 5.28 | Curt Schilling | 211.7 | BOS |
| +036+ | 5.09 | Roy Oswalt | 217.3 | HOU |
| +040+ | 4.92 | Jake Westbrook | 194.7 | CLE |
| +041+ | 4.89 | Al Leiter | 155.7 | NYN |
| +049+ | 4.67 | Jaret Wright | 178 | ATL |
| +053+ | 4.45 | Odalis Perez | 180.3 | LAN |
| +058+ | 4.27 | Doug Davis | 194.3 | MIL |
| +061+ | 4.16 | Brad Radke | 207.7 | MIN |
| +062+ | 4.15 | Chris Carpenter | 182 | SLN |
| +065+ | 4.1 | David Wells | 177.3 | SDN |
| +066+ | 4.06 | Tom Glavine | 194 | NYN |
| +070+ | 4.01 | Tim Hudson | 168.7 | OAK |
| +075+ | 3.79 | Brandon Webb | 190 | ARI |
| +076+ | 3.75 | Livan Hernandez | 231 | WAS |
| +078+ | 3.71 | Pedro Martinez | 204.7 | BOS |
| +081+ | 3.64 | Joe Kennedy | 148.3 | COL |
| +083+ | 3.55 | Ryan Drese | 195.7 | TEX |
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