| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stieb | TOR | 7.16 | 198409150_TOR_DET |
| Mike Boddicker | BAL | 5.89 | 198409140_BAL_MIL |
| Charlie Lea | WAS | 4.17 | 198409160_WAS_PHI |
| Orel Hershiser | LAN | 3.38 | 198409150_LAN_CIN |
| Rick Rhoden | PIT | 3.19 | 198409160_PIT_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Neal Heaton | CLE | -6.7 | 198409140_CLE_OAK |
| Dave Stewart | TEX | -4.39 | 198409160_MIN_TEX |
| Jim Clancy | TOR | -3.34 | 198409140_TOR_DET |
| Chris Codiroli | OAK | -2.82 | 198409140_CLE_OAK |
| Craig McMurtry | ATL | -2.07 | 198409140_SFN_ATL |
Based on accumulated WAA for this season up to 1984-09-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 7.26 | Dave Stieb | 245.3 | TOR |
| +008+ | 6.24 | Mike Boddicker | 237.3 | BAL |
| +017+ | 5.23 | Joe Niekro | 223.7 | HOU |
| +019+ | 5.19 | John Denny | 132.7 | PHI |
| +020+ | 5.18 | Dwight Gooden | 202 | NYN |
| +021+ | 5.13 | Larry McWilliams | 209.7 | PIT |
| +022+ | 5.03 | Orel Hershiser | 169.7 | LAN |
| +025+ | 4.86 | Charlie Lea | 224.3 | WAS |
| +029+ | 4.59 | Rick Rhoden | 222.7 | PIT |
| +030+ | 4.53 | Frank Viola | 233.3 | MIN |
| +033+ | 4.39 | Bert Blyleven | 210.7 | CLE |
| +037+ | 4.29 | Phil Niekro | 211.3 | NYA |
| +039+ | 4.18 | Ray Burris | 196.7 | OAK |
| +040+ | 4.17 | Storm Davis | 209.3 | BAL |
| +041+ | 4.09 | Fernando Valenzuela | 245 | LAN |
| +042+ | 4.02 | Dan Schatzeder | 123 | WAS |
| +044+ | 3.95 | John Candelaria | 179.3 | PIT |
| +048+ | 3.81 | Rick Honeycutt | 182 | LAN |
| +051+ | 3.58 | Jerry Koosman | 209.7 | PHI |
| +058+ | 3.43 | John Butcher | 202.3 | MIN |
| +062+ | 3.35 | Ricky Mahler | 198 | ATL |
| +068+ | 3.22 | Nolan Ryan | 182.3 | HOU |
| +070+ | 3.17 | Mark Langston | 208.7 | SEA |
| +072+ | 3.13 | Doyle Alexander | 227 | TOR |
| +073+ | 3.12 | Frank Tanana | 224.3 | TEX |
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