| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jason Marquis | SLN | -3.61 | 200609090_SLN_ARI |
| Odalis Perez | KCA | -3.01 | 200609080_KCA_BOS |
| Brian Moehler | MIA | -2.74 | 200609090_PHI_MIA |
| Livan Hernandez | ARI | -1.45 | 200609080_SLN_ARI |
| Wandy Rodriguez | HOU | -1.34 | 200609100_HOU_MIL |
Based on accumulated WAA for this season up to 2006-09-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 8.82 | Johan Santana | 212.7 | MIN |
| +011+ | 7.09 | Brandon Webb | 207 | ARI |
| +012+ | 6.86 | Chris Carpenter | 190.7 | SLN |
| +013+ | 6.56 | Roy Halladay | 207.7 | TOR |
| +018+ | 5.9 | Bronson Arroyo | 213.3 | CIN |
| +019+ | 5.77 | Roy Oswalt | 191.7 | HOU |
| +027+ | 5.36 | C.C. Sabathia | 172.3 | CLE |
| +029+ | 5.3 | Justin Verlander | 172 | DET |
| +031+ | 5.22 | Jered Weaver | 101.7 | ANA |
| +037+ | 4.89 | Chris Capuano | 198.3 | MIL |
| +039+ | 4.82 | Jason Jennings | 196.7 | COL |
| +040+ | 4.81 | Jason Schmidt | 195.7 | SFN |
| +041+ | 4.78 | Josh Johnson | 152 | MIA |
| +044+ | 4.62 | Roger Clemens | 91.3 | HOU |
| +052+ | 4.27 | John Lackey | 190.7 | ANA |
| +053+ | 4.22 | Chien-Ming Wang | 200 | NYA |
| +054+ | 4.15 | John Smoltz | 201 | ATL |
| +061+ | 3.92 | Derek Lowe | 193 | LAN |
| +062+ | 3.85 | Kelvim Escobar | 176.7 | ANA |
| +067+ | 3.71 | Dontrelle Willis | 201.3 | MIA |
| +075+ | 3.38 | Anibal Sanchez | 87.3 | MIA |
| +081+ | 3.2 | Mike Mussina | 174.3 | NYA |
| +088+ | 3.07 | Aaron Harang | 202.3 | CIN |
| +092+ | 2.99 | Nathan Robertson | 190 | DET |
| +094+ | 2.92 | Barry Zito | 200.3 | OAK |
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